2024 |
Kreth FA, Koeps L, Donne SW, Balducci A, 'Operando Temperature Dynamic Investigation of Electric Double-Layer Capacitors Containing Organic Electrolytes', BATTERIES & SUPERCAPS, [C1]
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2024 |
Ntoukas I, Lan R, Milanese C, Walker M, Donne SW, Roberts AJ, Gkanas EI, 'Ni/Co bimetallic flower-like metal organic frameworks with enhanced performance for high-power energy storage applications', MRS Communications, 14 69-75 (2024) [C1]
Metal¿organic frameworks (MOFs) are promising materials for supercapacitors due to their surface area and tunable pore size. Pristine monometallic MOFs suffer from low conductivit... [more]
Metal¿organic frameworks (MOFs) are promising materials for supercapacitors due to their surface area and tunable pore size. Pristine monometallic MOFs suffer from low conductivity. In this work, bimetallic Ni-rich/Co-MOFs were synthesized via a one-step solvothermal method. Various Ni2+ and Co2+ stoichiometric ratios were considered and their impact on MOF structure and electrochemical performance was evaluated. It was found that Co2+ substitution in the initial Ni-MOF structure enhanced the electrochemical properties, providing a specific capacitance of 1303¿F¿g-1 (145¿mAh¿g-1) at 1¿A¿g-1, almost double than the monometallic Ni-MOF. An optimum stoichiometric ratio of (2)Ni:(1)Co was obtained. Graphical abstract: (Figure presented.)
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Nova |
2024 |
Callahan CL, Cameron AP, Forghani M, Donne SW, 'Analysis of voltametric data from electrochemical capacitor electrode materials: Method refinement for improved outcomes', Electrochimica Acta, 475 143619-143619 (2024) [C1]
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Nova |
2023 |
Guillemin T, Douard C, Impellizzeri A, Ewels CP, Humbert B, Lethien C, et al., 'In-Depth Investigation of Manganese Dioxide as Pseudocapacitive Electrode in Lithium- and Sodium-Doped Ionic Liquids', Journal of The Electrochemical Society, 170 100531-100531 (2023) [C1]
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Nova |
2023 |
Perry J, Jones TW, Coronado JM, Donne SW, Bayon A, 'Thermodynamic analysis of a novel two-step high temperature thermo-electrochemical water splitting cycle', Energy, 276 (2023) [C1]
Green hydrogen is a clean fuel aiming to revolutionize the transportation industry in the next decades. It can be produced by several processes with solar electrochemical (EC) and... [more]
Green hydrogen is a clean fuel aiming to revolutionize the transportation industry in the next decades. It can be produced by several processes with solar electrochemical (EC) and solar thermochemical hydrogen (SCTH) as the most attractive ones. High-temperature solid oxide electrolysis (SOE) is a relatively mature technology; however, these systems suffer low durability due to delamination, build-up of nonconductive phases and separation of metallic electrode contacts. Alternatively, two-step solar thermochemical hydrogen (STCH) exhibits ample durability and benefit from cheaper thermal energy, although solar-to-hydrogen efficiencies remain low. Herein, a novel electrochemically assisted solar thermochemical hydrogen production process (EC-STCH) is proposed, presenting a fundamental thermodynamic analysis of this novel route and a comparison with conventional SCTH and SOE, assuming a fixed H2O-to-H2 conversion of 10% and 50%. The thermodynamic model is based on fundamental thermodynamic principles and demonstrates that for materials which require a ¿T > 500 °C to conduct both reactions in STCH, could operate at lower temperatures and ¿T = 0 °C. Reaction conditions were evaluated showing that it may also be possible to increase the oxygen partial pressure while still achieving high fuel conversion, which would not be possible operating under the conventional SOE and STCH conditions.
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Nova |
2022 |
Wang F, Zhang R, Donne SW, Beyad Y, Liu X, Duan X, et al., 'Co-pyrolysis of wood chips and bentonite/kaolin: Influence of temperatures and minerals on characteristics and carbon sequestration potential of biochar', Science of the Total Environment, 838 (2022) [C1]
Biochars have been highlighted as a means of carbon sequestration, which is significant for achieving carbon neutrality. Mixtures of wood chips and either bentonite or kaolin were... [more]
Biochars have been highlighted as a means of carbon sequestration, which is significant for achieving carbon neutrality. Mixtures of wood chips and either bentonite or kaolin were co-pyrolysed at temperatures of 350 °C and 550 °C, and the microstructural characteristics and the carbon sequestration potential of the resultant biochar were explored in the study. The addition of minerals promoted the formation of a stable carbon structure in biochar, especially the proportion of Si[sbnd]C bonds in the high-temperature mineral-composited biochar increased by 3.56¿3.82 times compared with the original biochar. After bentonite or kaolin was added to wood chips pyrolysed at 550 °C, the carbon loss after H2O2 oxidation was reduced to no more than 19.2%, and the Recalcitrance Index (R50) of biochar increased to no less than 0.89. The combined action of high temperature and minerals promoted the formation of highly aromatic structures of biochar (H:C < 0.4) and reduced the amount of dissolved organic carbon to 4.89 mg g-1. Furthermore, minerals directly covered the surface of biochar, and the content of Si[sbnd]C bond increased, thus strengthening the chemical and thermal stability of biochar. However, the addition of minerals had no significant effect on the biological stability of biochar. The study indicates that the pre-pyrolysis mineral addition is an effective way to increase the carbon sequestration potential of biochar.
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Nova |
2022 |
Cameron AP, Davey SB, Callahan CL, Donne SW, 'Communication-Demonstrating the Role of Mass Transport in Double Layer Formation', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 169 (2022) [C1]
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Nova |
2022 |
Yousefi M, Donne S, 'Experimental study for thermal methane cracking reaction to generate very pure hydrogen in small or medium scales by using regenerative reactor', FRONTIERS IN ENERGY RESEARCH, 10 (2022) [C1]
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Nova |
2021 |
Davey SB, Cameron AP, Latham KG, Donne SW, 'Thermodynamic and kinetic examination of the glassy carbon electrode in neutral aqueous electrolytes', Journal of Power Sources Advances, 10 (2021) [C1]
Herein we report on the charge storage behaviour of a non-porous planar glassy carbon electrode (GCE) in an aqueous electrolyte of 0.5 M Na2SO4 at temperatures in the range 25 °C ... [more]
Herein we report on the charge storage behaviour of a non-porous planar glassy carbon electrode (GCE) in an aqueous electrolyte of 0.5 M Na2SO4 at temperatures in the range 25 °C to 50 °C. Preliminary cyclic voltammetry (CV) data indicate a decrease in electrode performance at increasing temperatures, and this was supported by detailed analysis of step potential electrochemical spectroscopy (SPECS) data. Kinetic analysis of the deconvoluted SPECS data using the Arrhenius equation has indicated that diffusional charge storage is not thermally activated, instead being possibly influenced by thermal scattering of electrolyte ions. Entropimetric analysis of the SPECS data has generated entropy and enthalpy data for charge storage in this system. These results are discussed in terms of charge storage at this interface.
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Nova |
2021 |
Galek P, Bujewska P, Donne S, Fic K, Menzel J, 'New insight into ion dynamics in nanoporous carbon materials: An application of the step potential electrochemical spectroscopy (SPECS) technique and electrochemical dilatometry', Electrochimica Acta, 377 (2021) [C1]
This paper reports on the charging mechanism of an activated carbon electrode in a symmetric electrochemical capacitor operating in an ionic liquid electrolyte (EMIm+TFSI-). With ... [more]
This paper reports on the charging mechanism of an activated carbon electrode in a symmetric electrochemical capacitor operating in an ionic liquid electrolyte (EMIm+TFSI-). With the application of step potential electrochemical spectroscopy (SPECS) and electrochemical dilatometry, it is determined that the electrical double-layer formation mechanism strongly depends on the porous structure of the electrode material. Furthermore, SPECS calculations allow us to separate and quantify the charge component responsible for the ionic movement.
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Nova |
2021 |
Moradmand S, Allen JA, Donne SW, 'Thermal and electrochemical impact of kaolin on a direct carbon fuel cell', Fuel, 291 (2021) [C1]
This paper investigates the impact of kaolin, a dominant coal mineral, on the thermal and electrochemical behaviour of the molten ternary carbonate eutectic ((Li,Na,K)2CO3) in the... [more]
This paper investigates the impact of kaolin, a dominant coal mineral, on the thermal and electrochemical behaviour of the molten ternary carbonate eutectic ((Li,Na,K)2CO3) in the direct carbon fuel cell (DCFC) as a means to simulate long-term operation with a continuous coal feed. Thermogravimetric and differential thermal analysis, coupled with kinetic modelling using the Friedman method, shows a substantial decrease in activation energy for eutectic melting with the addition of kaolin. Electro-oxidation of carbon (graphite) is also enhanced with kaolin in the electrolyte, increasing from 17.68 mA/cm2 at 0 wt% kaolin to the highest value of 162 mA/cm2 with 15 wt% kaolin added. It is shown that the improvement is due to increasing oxide concentration resulting from kaolin dissolution in the electrolyte.
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Nova |
2021 |
Hossain MZ, Bahar MM, Sarkar B, Donne SW, Wade P, Bolan N, 'Assessment of the fertilizer potential of biochars produced from slow pyrolysis of biosolid and animal manures', Journal of Analytical and Applied Pyrolysis, 155 (2021) [C1]
Excessive amounts of animal manures and production of a large volume of biosolids pose serious environmental issues in terms of their safe disposal and management. Thermochemical ... [more]
Excessive amounts of animal manures and production of a large volume of biosolids pose serious environmental issues in terms of their safe disposal and management. Thermochemical treatment of bio-waste materials via pyrolysis can convert them into value-added products such as biochar-based fertilizers. In this study, fourteen biochars were produced from one biosolid and thirteen animal manures by slow pyrolysis at 300 °C. All feedstock and biochar samples were characterized by determining the yield, and physicochemical and surface properties, including the C-containing functional groups. Principal component and cluster analyses were used to classify the feedstock/biochar materials based on their mineral constituents. The biochar yield of various feedstocks ranged from 39 to 81%, with the highest yield for grain-fed cow manure. The highest N and K content was found in chicken manure biochar (57.8 and 29.2 g kg¿1, respectively), while the highest P was found in biosolid biochar (40.5 g kg¿1). The specific surface area of biochars ranged from 96.06¿110.83 m2 g-1. Hierarchical analyses of the chemical compositions of feedstocks and biochars enabled grouping of the materials respectively into four and five distinguished clusters. Three principal components (PC) explained 86.8% and 83.3% of the variances in the feedstocks and biochars, respectively. The PC1 represented the content of the major nutrients (N, P and K), whereas PC2 and PC3 represented other nutrients (secondary and micronutrients) contents and physicochemical properties (pH and EC). The results of this study suggested that biochars produced from different manures and biosolids may potentially be a source of soil nutrients and trace elements. In addition, different biochars may be applied to different nutrient-deficient soils to avoid plausible nutrient and potentially toxic element contamination.
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Nova |
2021 |
Latham KG, Forghani M, Dose WM, Allen JA, Donne SW, 'Influence of counter ions of ammonium for nitrogen doping and carbon properties in hydrothermal carbonization: characterization and supercapacitor performance', Materials Advances, 2 384-397 (2021) [C1]
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Nova |
2021 |
Yousefi M, Donne S, 'Technical challenges for developing thermal methane cracking in small or medium scales to produce pure hydrogen-A review', INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 47 699-727 (2021) [C1]
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Nova |
2021 |
Forghani M, Cameron AP, Donne SW, 'Redox mechanism contributions to the behaviour of electrochemical capacitor materials', Journal of the Electrochemical Society, 168 (2021) [C1]
The mechanisms of charge storage in four typical electrochemical capacitor systems are compared and contrasted. These systems are based on activated carbon, ruthenium dioxide, man... [more]
The mechanisms of charge storage in four typical electrochemical capacitor systems are compared and contrasted. These systems are based on activated carbon, ruthenium dioxide, manganese dioxide and nickel hydroxide. Charge storage is discussed in terms of charge delocalization either on the surface or throughout the electrode material. Electrical double layer formation, such as on activated carbon, is considered an example of charge delocalization, with charge distributed over the electrolyte accessible surface irrespective of the applied potential. Ruthenium dioxide also stores delocalized charge, in this case through the reversible Ru(IV)/ Ru(III) redox couple. Manganese dioxide is unique in that in alkaline (battery) electrolytes charge is localized in specific structural domains, while in neutral (capacitor) electrolytes charge is delocalized over the material structure. Nickel hydroxide in an alkaline electrolyte is an example of charge localization when redox cycling due to its two-phase redox mechanism. The impact of these differing charge storage mechanisms on electrochemical performance is discussed.
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Nova |
2021 |
Ul Hoque MI, Chowdhury A-N, Islam MT, Firoz SH, Luba U, Alowasheeir A, et al., 'Fabrication of highly and poorly oxidized silver oxide/silver/tin(IV) oxide nanocomposites and their comparative anti-pathogenic properties towards hazardous food pathogens', JOURNAL OF HAZARDOUS MATERIALS, 408 (2021) [C1]
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Nova |
2021 |
Davey SB, Cameron AP, Latham KG, Donne SW, 'Electrical double layer formation on glassy carbon in aqueous solution', Electrochimica Acta, 386 (2021) [C1]
Herein we report on the use of step potential electrochemical spectroscopy (SPECS) to characterize the dynamics of charge storage on a planar non-porous glassy carbon electrode in... [more]
Herein we report on the use of step potential electrochemical spectroscopy (SPECS) to characterize the dynamics of charge storage on a planar non-porous glassy carbon electrode in an aqueous electrolyte. Comparison between the spatial requirements of solvated electrolyte ions and the amount of charge added to the electrode surface implies that electrolyte charge storage is diffuse in nature, extending a substantial distance into the electrolyte, even for a concentrated electrolyte. This is contrary to the expected parallel planes of charge expected for double layer formation at the interface. The implications of this on the use of porous materials is also discussed.
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Nova |
2021 |
Wang J, Islam MM, Donne SW, 'In-situ detection of LiMn
Herein we describe a modified Swagelok electrochemical cell for characterizing individual electrode behavior as part of full cell operation, including individual electrode potenti... [more]
Herein we describe a modified Swagelok electrochemical cell for characterizing individual electrode behavior as part of full cell operation, including individual electrode potentials and dissolution phenomena. The case study presented is that of the non-aqueous Li-LiMn2O4 system. Outcomes from the work include characterization of lithium negative electrode potential variation with applied current, lithium corrosion and passivation in the electrolyte, and LiMn2O4 dissolution with cycling. It is also demonstrated that Mn(III) is the dissolution product. Application of the technique to other systems, including electrode materials and electrolytes, is discussed.
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Nova |
2021 |
Butts D, Schoiber J, Choi C, Redhammer GJ, Hüsing N, Donne S, Dunn B, 'Fe-Substituted Sodium ß -Al
The great interest in Na-ion batteries has led to the development of a number of materials based on the analogues of Li-ion battery materials. However, the larger ion radius and t... [more]
The great interest in Na-ion batteries has led to the development of a number of materials based on the analogues of Li-ion battery materials. However, the larger ion radius and the lower operating potential of Na compared to those of Li show the limitation of that approach and underscore the need for new methods of electrode material design. In this paper, the well-known superionic conductor, Na ß¿-Al2O3, is converted into a high-rate Na+ negative electrode by substituting Fe for Al and achieving mixed electron-ion conduction; that is, the presence of Fe2+/Fe3+ in the spinel block of the structure produces electronic conduction, while Na+ transport is retained in the conduction plane. The 52 mol % Fe-substituted Na ß¿-Al2O3 exhibited a high ionic conductivity (~10-3 S cm-1), near theoretical capacity values at 1C, and retained ~70% of theoretical capacity at 20C. Kinetic analysis revealed that a surface-controlled charge-storage mechanism is responsible for the high-rate capability. Although the gravimetric capacity of this converted superionic conductor is limited by the small number of Na-ion storage sites available per transition metal, the transformation of Na ß¿-Al2O3 into a mixed electronic-ionic conducting electrode provides a set of design rules for achieving high-rate redox electrodes from solid-state electrolytes.
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Nova |
2021 |
Fedunik-Hofman L, Bayon A, Gao X, Tricoli A, Donne SW, 'Dysprosium Oxide-Supported CaO for Thermochemical Energy Storage', FRONTIERS IN MATERIALS, 8 (2021) [C1]
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Nova |
2021 |
Forghani M, McCarthy J, Cameron AP, Davey SB, Donne SW, 'Semiconductor Properties of Electrodeposited Manganese Dioxide for Electrochemical Capacitors: Mott-Schottky Analysis', Journal of the Electrochemical Society, 168 (2021) [C1]
Herein the semiconducting nature of electrodeposited manganese dioxide (¿-MnO2) is examined for its effects on pseudo-capacitive electrode behaviour in neutral electrolytes. Elect... [more]
Herein the semiconducting nature of electrodeposited manganese dioxide (¿-MnO2) is examined for its effects on pseudo-capacitive electrode behaviour in neutral electrolytes. Electrochemical analysis of the manganese dioxide electrode is achieved using a combination of cyclic voltammetry (CV), step potential electrochemical spectroscopy (SPECS) and electrochemical impedance spectroscopy (EIS), in particular the combination of SPECS and EIS in a single experiment, enabling the determination of electronic properties across the full potential window. After establishing stable cycling with CV, electrode performance is examined using SPECS. EIS data, recorded under quasi-equilibrium conditions at the end of each potential step rest period, is then analyzed using the Mott-Schottky equation, leading to the identification of both n-type and p-type behaviour for the manganese dioxide electrode. Flat band potentials are determined (Vfb,n = -0.34 V vs SCE and Vfb,p = 0.98 V vs SCE), and conclusions about the electrochemically active surface area being more closed related to the geometric surface area were reached.
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Nova |
2021 |
Wang T, Sacci RL, Liang J, Do-Thanh CL, Fan J, Chen H, et al., 'Mechanistic Insights of Pore Contributions in Carbon Supercapacitors by Modified Step Potential Electrochemical Spectroscopy', Journal of the Electrochemical Society, 168 (2021) [C1]
Porous carbons are widely used as electrode materials for electrical double layer (EDL)-type supercapacitors. Differentiation of capacitance contributions from micropores and meso... [more]
Porous carbons are widely used as electrode materials for electrical double layer (EDL)-type supercapacitors. Differentiation of capacitance contributions from micropores and mesopores is important to understand porous carbon capacitive behavior. However, this remains challenging to accomplish. Here, we present an improved step potential electrochemical spectroscopy method to investigate the contributions to capacitance from hierarchical pores and redox processes.
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Nova |
2021 |
Cameron AP, Davey SB, Latham KG, Donne SW, 'Capacitive Charge Storage at the Glassy Carbon Electrode: Comparison between Aqueous and Non-Aqueous Electrolytes', Journal of the Electrochemical Society, 168 (2021) [C1]
Herein the charge storage capabilities of a planar non-porous glassy carbon electrode (GCE) in electrolytes of aqueous 0.5 M Na2SO4 and 1 M tetraethylammonium tetrafluoroborate (T... [more]
Herein the charge storage capabilities of a planar non-porous glassy carbon electrode (GCE) in electrolytes of aqueous 0.5 M Na2SO4 and 1 M tetraethylammonium tetrafluoroborate (TEABF4) in acetonitrile are compared using a combination of cyclic voltammetry (CV), step potential electrochemical spectroscopy (SPECS) and electrochemical impedance spectroscopy (EIS). In all techniques the resultant capacitance was substantially higher for the GCE in 1 M TEABF4 compared to 0.5 M Na2SO4, with the differences due to solvation of the adsorbing electrolyte ions. Adsorbing Na+ cations in the aqueous system have a substantial solvation sheath that increases the resistance associated with capacitive charge storage, decreases the capacitance, as well as inhibits the packing of similar electrolyte ions in the vicinity of the GCE. Conversely, the adsorbing BF4- ions in the acetonitrile-based electrolyte exhibit a low resistance to charge storage, a greatly enhanced capacitance, as well as exhibit an improved ability to pack at the electrode-electrolyte interface. The impact of this behaviour on electrode performance has also been discussed.
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Nova |
2021 |
Hassan M, Liu Y, Naidu R, Du J, Qi F, Donne SW, Islam MM, 'Mesoporous Biopolymer Architecture Enhanced the Adsorption and Selectivity of Aqueous Heavy-Metal Ions', ACS Omega, 6 15316-15331 (2021) [C1]
Halloysite nanotubes (HNT) and ball-milled biochar (BC) incorporated biocompatible mesoporous adsorbents (HNT-BC@Alg) were synthesized for adsorption of aqueous heavy-metal ions. ... [more]
Halloysite nanotubes (HNT) and ball-milled biochar (BC) incorporated biocompatible mesoporous adsorbents (HNT-BC@Alg) were synthesized for adsorption of aqueous heavy-metal ions. HNT-BC@Alg outperformed the BC, HNT, and BC@Alg in removing cadmium (Cd), copper (Cu), nickel (Ni), and lead (Pb). Mesoporous structure (?7.19 to 7.56 nm) of HNT-BC@Alg was developed containing an abundance of functional groups induced from encapsulated BC and tubular HNT, which allowed heavy metals to infiltrate and interact with the adsorbents. Siloxane groups from HNT, oxygen-containing functional groups from BC, and hydroxyl and carboxyl groups from alginate polymer play a significant role in the adsorption of heavy-metal ions. The removal percentage of heavy metals was recorded as Pb (?99.97 to 99.05%) > Cu (?95.01 to 90.53%) > Cd (?92.5 to 55.25%) > Ni (?80.85 to 50.6%), even in the presence of 0.01/0.001 M of CaCl2 and Na2SO4 as background electrolytes and charged organic molecule under an environmentally relevant concentration (200 µg/L). The maximum adsorption capacities of Ni, Cd, Cu, and Pb were calculated as 2.85 ± 0.08, 6.96 ± 0.31, 16.87 ± 1.50, and 26.49 ± 2.04 mg/g, respectively. HNT-BC@Alg has fast sorption kinetics and maximum adsorption capacity within a short contact time (?2 h). Energy-dispersive X-ray spectroscopy (EDS) elemental mapping exhibited that adsorbed heavy metals co-distributed with Ca, Si, and Al. The reduction of surface area, pore volume, and pore area of HNT-BC@Alg (after sorption of heavy metals) confirms that mesoporous surface (2-18 nm) supports diffusion, infiltration, and interaction. However, a lower range of mesoporous diameter of the adsorbent is more suitable for the adsorption of heavy-metal ions. The adsorption isotherm and kinetics fitted well with the Langmuir isotherm and the pseudo-second-order kinetic models, demonstrating the monolayer formation of heavy-metal ions through both the physical sorption and chemical sorption, including pore filling, ion exchange, and electrostatic interaction.
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Nova |
2021 |
Davey SB, Cameron AP, Latham KG, Donne SW, 'Combined step potential electrochemical spectroscopy and electrochemical impedance spectroscopy analysis of the glassy carbon electrode in an aqueous electrolyte', Electrochimica Acta, 396 (2021) [C1]
The nature of the electrified interface between a planar non-porous glassy carbon electrode and an aqueous electrolyte of 0.5 M Na2SO4 is examined using the combination of step po... [more]
The nature of the electrified interface between a planar non-porous glassy carbon electrode and an aqueous electrolyte of 0.5 M Na2SO4 is examined using the combination of step potential electrochemical spectroscopy (SPECS) and electrochemical impedance spectroscopy (EIS) across the full potential window of stability. This combination of techniques provides insight into the dynamics of interface formation (SPECS), as well as interfacial structure (EIS), highlighting the variation in capacitance across the potential window. EIS frequency also plays a significant role in determining capacitance via the role that it plays in determining ionic and dipole movement. High frequencies stimulate electron cloud movement, followed by dipole rotation and ionic movement as the frequency progressively decreases. Outcomes further highlight the role that mass transport has on the amount of charge storage at the interface.
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Nova |
2020 |
Cook A, Jones TW, Wang JTW, Li H, Atkin R, Duffy NW, et al., 'Passivation by pyridine-induced PbI2 in methylammonium lead iodide perovskites', RSC Advances, 10 23829-23833 (2020) [C1]
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Nova |
2020 |
Allen JA, Glenn M, Donne SW, 'Analysis of theoretical efficiency in a model 10 kW direct carbon fuel cell using a coal based carbonate slurry', Electrochimica Acta, 329 (2020) [C1]
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Nova |
2020 |
Forghani M, Mavroudis H, McCarthy J, Donne SW, 'Electroanalytical characterization of electrochemical capacitor systems using step potential electrochemical spectroscopy', Electrochimica Acta, 332 (2020) [C1]
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Nova |
2020 |
Hughes MA, Allen JA, Donne SW, 'Characterization of carbonate derived carbons through electrochemical impedance spectroscopy', Electrochimica Acta, 338 (2020) [C1]
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Nova |
2020 |
Glenn MJ, Allen JA, Donne SW, 'Carbon electro-catalysis in the direct carbon fuel cell utilising alkali metal molten carbonates: A mechanistic review', Journal of Power Sources, 453 (2020) [C1]
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Nova |
2020 |
Fu Y, Richardson P, Li K, Yu H, Yu B, Donne S, et al., 'Transition Metal Aluminum Boride as a New Candidate for Ambient-Condition Electrochemical Ammonia Synthesis', Nano-Micro Letters, 12 (2020) [C1]
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Nova |
2020 |
Hughes MA, Allen JA, Donne SW, 'Optimized Electrolytic Carbon and Electrolyte Systems for Electrochemical Capacitors', ChemElectroChem, 7 266-282 (2020) [C1]
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Nova |
2020 |
Abbas SA, Forghani M, Anh S, Donne SW, Jung K-D, 'Carbon hollow spheres as electrochemical capacitors: Mechanistic insights', ENERGY STORAGE MATERIALS, 24 550-556 (2020) [C1]
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Nova |
2020 |
Yu B, Li H, White J, Donne S, Yi J, Xi S, et al., 'Tuning the Catalytic Preference of Ruthenium Catalysts for Nitrogen Reduction by Atomic Dispersion', Advanced Functional Materials, 30 (2020) [C1]
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Nova |
2020 |
Hossain MZ, Bahar MM, Sarkar B, Donne SW, Ok YS, Palansooriya KN, et al., 'Biochar and its importance on nutrient dynamics in soil and plant', BIOCHAR, 2 379-420 (2020) [C1]
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Nova |
2020 |
Fu Y, Li K, Batmunkh M, Yu H, Donne S, Jia B, Ma T, 'Unsaturated p-Metal-Based Metal-Organic Frameworks for Selective Nitrogen Reduction under Ambient Conditions', ACS APPLIED MATERIALS & INTERFACES, 12 44830-44839 (2020) [C1]
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Nova |
2020 |
Chew J, Zhu L, Nielsen S, Graber E, Mitchell DRG, Horvat J, et al., 'Biochar-based fertilizer: Supercharging root membrane potential and biomass yield of rice', Science of the Total Environment, 713 (2020) [C1]
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Nova |
2020 |
Hoque MIU, Chowdhury AN, Firoz MSH, Biswas MK, Luba U, Haque Y, et al., 'One-dimensional Sn(iv) hydroxide nanofluid toward nonlinear optical switching', Materials Horizons, 7 1150-1159 (2020) [C1]
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Nova |
2020 |
Dupont MF, Gibson AJ, Elbourne A, Forghani M, Cross AD, Donne SW, 'In Situ Investigation of the Electrodeposition Mechanism of Manganese Dioxide from a Citrate Electrolyte: The Effect of Intermediate Stabilization on Material Morphology', Journal of the Electrochemical Society, 167 (2020) [C1]
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Nova |
2019 |
Forghani M, Donne SW, 'Modification of the step potential electrochemical spectroscopy analysis protocol to improve outcomes', Journal of the Electrochemical Society, 166 A2727-A2735 (2019) [C1]
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Nova |
2019 |
Forghani M, McCarthy J, Donne SW, 'Oscillatory current behavior in energy storage electrode materials', Journal of the Electrochemical Society, 166 A3620-A3630 (2019) [C1]
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Nova |
2019 |
Forghani M, Donne SW, 'Complications when differentiating charge transfer processes in electrochemical capacitor materials: Assessment of cyclic voltammetry data', Journal of the Electrochemical Society, 166 A1370-A1379 (2019) [C1]
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Nova |
2019 |
Latham KG, Ferguson A, Donne SW, 'Influence of ammonium salts and temperature on the yield, morphology and chemical structure of hydrothermally carbonized saccharides', SN APPLIED SCIENCES, 1 (2019) [C1]
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Nova |
2019 |
Tang WC, Wang Z, Donne SW, Forghani M, Liu Y, 'Influence of red mud on mechanical and durability performance of self-compacting concrete', Journal of Hazardous Materials, 379 (2019) [C1]
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Nova |
2019 |
Forghani M, McCarthy J, Mavroudis H, Donne SW, 'Electroanalytical characterization of electrochemical capacitor systems', Electrochimica Acta, 327 (2019) [C1]
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Nova |
2019 |
Conroy G, Robinson K, Beach F, Donne SW, 'Electrochemical characterization of the interaction between ammonium nitrate and reactive ground', Electrochimica Acta, 328 (2019) [C1]
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Nova |
2019 |
Fedunik-Hofman L, Bayon A, Hinkley J, Lipinski W, Donne SW, 'Friedman method kinetic analysis of CaO-based sorbent for high-temperature thermochemical energy storage', Chemical Engineering Science, 200 236-247 (2019) [C1]
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Nova |
2019 |
Xu GR, Batmunkh M, Donne S, Jin H, Jiang JX, Chen Y, Ma T, 'Ruthenium(iii) polyethyleneimine complexes for bifunctional ammonia production and biomass upgrading', Journal of Materials Chemistry A, 7 25433-25440 (2019) [C1]
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Nova |
2019 |
Glenn M, Allen JA, Donne SW, 'Silicate Formation in a Ternary Alkali Metal Carbonate Melt', Energy and Fuels, 33 12008-12015 (2019) [C1]
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Nova |
2019 |
Fedunik-Hofman L, Bayon A, Donne SW, 'Kinetics of Solid-Gas Reactions and Their Application to Carbonate Looping Systems', ENERGIES, 12 (2019) [C1]
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Nova |
2019 |
Glenn MJ, Allen JA, Donne SW, 'Carbon Gasification from a Molten Carbonate Eutectic', ENERGY TECHNOLOGY, 7 (2019) [C1]
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Nova |
2019 |
Jalalabadi T, Glenn M, Tremain P, Moghtaderi B, Donne S, Allen J, 'Modification of Biochar Formation during Slow Pyrolysis in the Presence of Alkali Metal Carbonate Additives', ENERGY & FUELS, 33 11235-11245 (2019) [C1]
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Nova |
2019 |
Hughes MA, Bennett RD, Allen JA, Donne SW, 'Physical characteristics of capacitive carbons derived from the electrolytic reduction of alkali metal carbonate molten salts', RSC ADVANCES, 9 36771-36787 (2019) [C1]
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Nova |
2019 |
Fedunik-Hofman L, Bayon A, Donne SW, 'Comparative Kinetic Analysis of CaCO3/CaO Reaction System for Energy Storage and Carbon Capture', APPLIED SCIENCES-BASEL, 9 (2019) [C1]
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Nova |
2019 |
Bolton L, Joseph S, Greenway M, Donne S, Munroe P, Marjo CE, 'Phosphorus adsorption onto an enriched biochar substrate in constructed wetlands treating wastewater', Ecological Engineering: X, 1 (2019) [C1]
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Nova |
2019 |
Fellows HM, Forghani M, Crosnier O, Donne SW, 'Modelling voltametric data from electrochemical capacitors', Journal of Power Sources, 417 193-206 (2019) [C1]
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Nova |
2019 |
Glenn M, Mathan B, Islam MM, Beyad Y, Allen JA, Donne SW, 'Gas Atmosphere Effects over the Anode Compartment of a Tubular Direct Carbon Fuel Cell Module', Energy and Fuels, 33 7901-7907 (2019) [C1]
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Nova |
2018 |
Dupont MF, Forghani M, Cameron AP, Donne SW, 'Effect of electrolyte cation on the charge storage mechanism of manganese dioxide for electrochemical capacitors', ELECTROCHIMICA ACTA, 271 337-350 (2018) [C1]
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Nova |
2018 |
Latham KG, Dose WM, Allen JA, Donne SW, 'Nitrogen doped heat treated and activated hydrothermal carbon: NEXAFS examination of the carbon surface at different temperatures', CARBON, 128 179-190 (2018) [C1]
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Nova |
2018 |
Joseph S, Kammann CI, Shepherd JG, Conte P, Schmidt HP, Hagemann N, et al., 'Microstructural and associated chemical changes during the composting of a high temperature biochar: Mechanisms for nitrate, phosphate and other nutrient retention and release', Science of the Total Environment, 618 1210-1223 (2018) [C1]
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Nova |
2018 |
Forghani M, Donne SW, 'Duty cycle effects on the step potential electrochemical spectroscopy (SPECS) analysis of the aqueous manganese dioxide electrode', Journal of the Electrochemical Society, 165 A593-A602 (2018) [C1]
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Nova |
2018 |
Hughes MA, Allen JA, Donne SW, 'The properties and performance of carbon produced through the electrochemical reduction of molten carbonate: A study based on step potential electrochemical spectroscopy', Electrochimica Acta, 278 340-351 (2018) [C1]
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Nova |
2018 |
Gibson AJ, Dupont MF, Wood RJ, Gu Q, Cameron AP, Donne SW, 'A synchrotron X-ray powder diffraction and step potential electrochemical spectroscopy study on the change in manganese dioxide capacitive behaviour during cycling', ELECTROCHIMICA ACTA, 260 630-639 (2018) [C1]
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Nova |
2018 |
Reynolds A, Joseph SD, Verheyen TV, Chinu K, Taherymoosavi S, Munroe PR, et al., 'Effect of clay and iron sulphate on volatile and water-extractable organic compounds in bamboo biochars', Journal of Analytical and Applied Pyrolysis, 133 22-29 (2018) [C1]
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Nova |
2018 |
Allen JA, Glenn M, Hapugoda P, Stanger R, O'Brien G, Donne SW, 'An investigation of mineral distribution in coking and thermal coal chars as fuels for the direct carbon fuel cell', Fuel, 217 11-20 (2018) [C1]
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Nova |
2018 |
Forghani M, Donne SW, 'Method comparison for deconvoluting capacitive and pseudo-capacitive contributions to electrochemical capacitor electrode behavior', Journal of the Electrochemical Society, 165 A664-A673 (2018) [C1]
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Nova |
2018 |
Hughes MA, Allen JA, Donne SW, 'The Properties of Carbons Derived through the Electrolytic Reduction of Molten Carbonates under Varied Conditions: Part I. A Study Based on Step Potential Electrochemical Spectroscopy', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 165 A2608-A2624 (2018) [C1]
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Nova |
2018 |
Latham KG, Donne SW, 'Nitrogen Doped Heat-Treated and Activated Hydrothermal Carbon: Examination of Electrochemical Performance Using Step Potential Electrochemical Spectroscopy', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 165 A2840-A2848 (2018) [C1]
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Nova |
2017 |
Qi F, Yan Y, Lamb D, Naidu R, Bolan NS, Liu Y, et al., 'Thermal stability of biochar and its effects on cadmium sorption capacity', BIORESOURCE TECHNOLOGY, 246 48-56 (2017) [C1]
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Nova |
2017 |
Rafiq MK, Joseph SD, Li F, Bai Y, Shang Z, Rawal A, et al., 'Pyrolysis of attapulgite clay blended with yak dung enhances pasture growth and soil health: Characterization and initial field trials', SCIENCE OF THE TOTAL ENVIRONMENT, 607 184-194 (2017) [C1]
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Nova |
2017 |
Ye J, Joseph SD, Ji M, Nielsen S, Mitchell DRG, Donne S, et al., 'Chemolithotrophic processes in the bacterial communities on the surface of mineral-enriched biochars', ISME JOURNAL, 11 1087-1101 (2017) [C1]
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Nova |
2017 |
Archanjo BS, Mendoza ME, Albu M, Mitchell DRG, Hagemann N, Mayrhofer C, et al., 'Nanoscale analyses of the surface structure and composition of biochars extracted from field trials or after co-composting using advanced analytical electron microscopy', GEODERMA, 294 70-79 (2017) [C1]
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Nova |
2017 |
Latham KG, Simone M, Dose WM, Allen JA, Donne SW, 'Synchrotron based NEXAFS study on nitrogen doped hydrothermal
carbon: Insights into surface functionalities and formation
mechanisms', Carbon, 114 566-578 (2017) [C1]
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Nova |
2017 |
Gibson AJ, Latham KG, Burns RC, Donne SW, 'Electrodeposition Mechanism of Cathodically-Prepared Manganese dioxide Thin Films from Permanganate for use in Electrochemical Capacitors', ELECTROCHIMICA ACTA, 236 198-211 (2017) [C1]
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Nova |
2017 |
Gibson AJ, Donne SW, 'A step potential electrochemical spectroscopy (SPECS) investigation of anodically electrodeposited thin films of manganese dioxide', JOURNAL OF POWER SOURCES, 359 520-528 (2017) [C1]
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Nova |
2016 |
Romano EF, So RC, Donne SW, Holdsworth CI, 'Preparation and Binding Evaluation of Histamine-Imprinted Microspheres via Conventional Thermal and RAFT-Mediated Free-Radical Polymerization', ACS OMEGA, 1 518-531 (2016) [C1]
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Nova |
2016 |
Latham KG, Rawal A, Hook JM, Donne SW, 'Molecular structures driving pseudo-capacitance in hydrothermal nanostructured carbons', RSC Advances, 6 12964-12976 (2016) [C1]
The incorporation of nitrogen into hydrothermal carbon with (NH4)2SO4 is shown to have a significant influence on its chemical composition and surface characteristics. This in tur... [more]
The incorporation of nitrogen into hydrothermal carbon with (NH4)2SO4 is shown to have a significant influence on its chemical composition and surface characteristics. This in turn boosts the pseudo-capacitive behavior of hydrothermal carbons and their overall electrochemical stability. A combination of X-ray photoelectron spectroscopy, Fourier transform infra-red spectroscopy (FTIR) and scanning electron microscopy (SEM), yielded insights on the influence of nitrogen doping on surface functionalities. 1- and 2-D solid state NMR established the molecular-level structure of both doped and non-doped hydrothermal carbon. Cyclic voltammetry and electrochemical impedance spectroscopy has established the electrochemical behaviour of these hydrothermal carbons, indicating that nitrogen doping enhances not only the capacitance but also the stability of the hydrothermal carbons.
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Nova |
2016 |
Della Noce R, Eugenio S, Boudard M, Rapenne L, Silva TM, Carmezim MJ, et al., 'One-step process to form a nickel-based/carbon nanofoam composite supercapacitor electrode using Na2SO4 as an eco-friendly electrolyte', RSC ADVANCES, 6 15920-15928 (2016) [C1]
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Nova |
2016 |
Gibson AJ, Johannessen B, Beyad Y, Allen J, Donne SW, 'Dynamic Electrodeposition of Manganese Dioxide: Temporal Variation in the Electrodeposition Mechanism', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 163 H305-H312 (2016) [C1]
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Nova |
2016 |
Dupont MF, Donne SW, 'Faradaic and Non-Faradaic Contributions to the Power and Energy Characteristics of Electrolytic Manganese Dioxide for Electrochemical Capacitors', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 163 A888-A897 (2016) [C1]
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Nova |
2016 |
Dupont MF, Donne SW, 'Electrolytic Manganese Dioxide Structural and Morphological Effects on Capacitive Performance', Electrochimica Acta, 191 479-490 (2016) [C1]
Step potential electrochemical spectroscopy (SPECS) has been applied to a range of different electrolytic manganese dioxide (EMD) samples to examine the effects that material comp... [more]
Step potential electrochemical spectroscopy (SPECS) has been applied to a range of different electrolytic manganese dioxide (EMD) samples to examine the effects that material composition, structure and morphology have on the performance of these materials as electrochemical capacitor electrodes. The applications of SPECS enabled deconvolution of the electrode behaviour into double layer and diffusional or pseudo-capacitive effects. The technique was even sensitive enough to resolve double layer charge storage associated with either the geometric or porous surface area. The relationships between each of the contributions to total capacitance and the EMD material properties have been described and discussed.
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Nova |
2016 |
Rawal A, Joseph SD, Hook JM, Chia CH, Munroe PR, Donne S, et al., 'Mineral-Biochar Composites: Molecular Structure and Porosity', ENVIRONMENTAL SCIENCE & TECHNOLOGY, 50 7706-7714 (2016) [C1]
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Nova |
2016 |
Dupont MF, Donne SW, 'Charge storage mechanisms in electrochemical capacitors: Effects of electrode properties on performance', JOURNAL OF POWER SOURCES, 326 613-623 (2016) [C1]
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Nova |
2015 |
Hughes MA, Allen JA, Donne SW, 'Carbonate Reduction and the Properties and Applications of Carbon Formed Through Electrochemical Deposition in Molten Carbonates: A Review', Electrochimica Acta, (2015) [C1]
The electrochemical conversion of CO<inf>2</inf> to carbon through the reductive electrolysis of molten carbonate-containing salts has been studied by a range of group... [more]
The electrochemical conversion of CO<inf>2</inf> to carbon through the reductive electrolysis of molten carbonate-containing salts has been studied by a range of groups. These groups have examined the yields, mechanisms of deposition and physical characteristics of carbon synthesized through electrolysis using a variety of electrolytes, substrates, temperatures, current densities and deposition potentials. The findings of these research groups have been compiled and compared, with particular significance being placed on findings relating to the influence of variables on the physical properties of carbon obtained in this manner. Research on potential applications of carbon derived from the electrolysis of molten carbonate-containing salts has been presented and the energetics of these carbons have been discussed. The possibility of using this form of carbon synthesis as a manner of permanent waste CO<inf>2</inf> sequestration has been considered.
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Nova |
2015 |
Dupont MF, Donne SW, 'Separating the Faradaic and Non-Faradaic Contributions to the Total Capacitance for Different Manganese Dioxide Phases', Journal of the Electrochemical Society, 162 A5096-A5105 (2015) [C1]
Six different phases of manganese dioxide have been examined to determine the different contributions made by double layer capacitance and pseudo-capacitive redox reactions (or di... [more]
Six different phases of manganese dioxide have been examined to determine the different contributions made by double layer capacitance and pseudo-capacitive redox reactions (or diffusion limited processes) to the total charge storage. These processes were separated using a novel combination of step potential electrochemical spectroscopy (SPECS), in which the electrode is charged and discharged in a series of small (±25 mV) potential steps, combined with modelling of the current response to determine the different charge storage processes occurring at the electrode. The manganese dioxide phases were all cycled in 0.5 M Na2SO4 between 0.0-0.8 V (vs SCE). The results indicate that the different properties of the samples, such as crystal structure, surface area and porosity affect the relative contributions from the each charge storage process.
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Nova |
2015 |
Allen JA, White J, Glenn M, Donne SW, 'Molten Carbonate Composition Effects on Carbon Electro-Oxidation at a Solid Anode Interface', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 162 F76-F83 (2015) [C1]
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Nova |
2015 |
Pramudita JC, Aughterson R, Dose WM, Donne SW, Brand HEA, Sharma N, 'Using in situ synchrotron x-ray diffraction to study lithium- and sodium-ion batteries: A case study with an unconventional battery electrode (Gd2TiO5)', JOURNAL OF MATERIALS RESEARCH, 30 381-389 (2015) [C1]
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Nova |
2015 |
Dupont MF, Donne SW, 'Separating faradaic and non-faradaic charge storage contributions in activated carbon electrochemical capacitors using electrochemical methods: I. step potential electrochemical spectroscopy', Journal of the Electrochemical Society, 162 A1246-A1254 (2015) [C1]
Development of an electrochemical method for separating the contributions made by faradaic and non-faradaic processes to the total specific capacitance of an electrochemical capac... [more]
Development of an electrochemical method for separating the contributions made by faradaic and non-faradaic processes to the total specific capacitance of an electrochemical capacitor electrode is reported. The method is based on step potential electrochemical spectroscopy (SPECS), and its application is demonstrated on activated carbon electrodes in aqueous media. The method involves applying a sequence of small potential steps (±25 mV) across the electrochemical window of the electrode material, with sufficient rest time between steps to allow for current equilibration. Modelling of the resultant i-t data using combined resistive, capacitive, diffusional and residual current terms allows for separation of the faradaic and non-faradaic terms. The behavior of these contributions across the electrode potential windowis reported and discussed in comparisonwith conventionalmethods of electrochemical analysis, such as cyclic voltammetry.
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Nova |
2015 |
Dupont MF, Donne SW, 'A Step Potential Electrochemical Spectroscopy Analysis of Electrochemical Capacitor Electrode Performance', ELECTROCHIMICA ACTA, 167 268-277 (2015) [C1]
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Nova |
2015 |
Gibson AJ, Burns RC, Dupont MF, Donne SW, 'Mesoscale morphological control of electrodeposited manganese dioxide films', Electrochimica Acta, 170 343-352 (2015) [C1]
Multilayered films of hybrid manganese dioxide have been synthesised in an anodic pulse deposition study with the addition of phosphotungstic acid, H<inf>3</inf>PW<... [more]
Multilayered films of hybrid manganese dioxide have been synthesised in an anodic pulse deposition study with the addition of phosphotungstic acid, H<inf>3</inf>PW<inf>12</inf>O<inf>40</inf> (PW) to an acidified MnSO<inf>4</inf> solution. These hybrid materials exhibit tuneable layered morphologies, which is not present in material synthesised in the absence of PW. Cyclic voltammetry analyses have been performed in situ on single pulse thin film depositions synthesised in the presence of varying concentrations of PW, where minor amounts of PW improves the cycle stability of the material, however larger concentrations lead to a degradation in material performance. In situ electrochemical analysis shows that the incorporated PW clusters do not affect material activity, however they do play a role in defining both meso- and micro-structure.
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Nova |
2015 |
Allen JA, Glenn M, Donne SW, 'The effect of coal type and pyrolysis temperature on the electrochemical activity of coal at a solid carbon anode in molten carbonate media', Journal of Power Sources, 279 384-393 (2015) [C1]
A systematic assessment of the electrochemical activity of two different parent coal types, pyrolysed at temperatures between 500 and 900 °C higher heating temperature (HHT), is p... [more]
A systematic assessment of the electrochemical activity of two different parent coal types, pyrolysed at temperatures between 500 and 900 °C higher heating temperature (HHT), is presented in this work. Analysis shows that certain coal chars are catalytically activated in molten carbonate media at 600 °C, however activity does not appear to follow trends established for ashless carbon sources. It is seen here that it is not possible to predict activity based solely on electrical resistance, surface functionalization, or the BET surface area of pyrolysed coals. Instead, it is suggested that coal ash type, abundance and distribution plays a pivotal role in activating the coal char to allow fast electrochemical oxidation through a catalytically enhanced pathway. Activation from ash influence is discussed to result from wetting of the molten carbonate media with the carbon surface (change in polarity of electrode surface), through ash mediated oxide adsorption and transfer to carbon particles, or possibly through another catalytic pathway not yet able to be predicted from current results.
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Nova |
2015 |
Dupont MF, Dose WM, Donne SW, 'In-situ investigation of the electrodeposition of manganese dioxide using small angle X-ray scattering', Journal of the Electrochemical Society, 162 A1809-A1815 (2015) [C1]
The electrodeposition mechanism of manganese dioxide has been investigated in-situ using transmission mode small angle X-ray scattering (SAXS). Manganese dioxide was deposited ano... [more]
The electrodeposition mechanism of manganese dioxide has been investigated in-situ using transmission mode small angle X-ray scattering (SAXS). Manganese dioxide was deposited anodically from an acidic MnSO<inf>4</inf> solution onto a platinum substrate using an electrochemical cell assembled with a short X-ray beam path length over the substrate. The evolving morphology of the film was characterized by taking short time base SAXS measurements over the duration of the electrodeposition process. Modelling of the SAXS data was discussed, with results indicating that the film morphology was found to change during the electrodeposition, with the average smallest pore size increasing from 4.3 to 5.3 Å, a size range that is consistent with previous literature. This suggests that with ongoing electrodeposition the material becomes less porous, has a lower surface area, and more crystalline.
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Nova |
2015 |
Joseph S, Pow D, Dawson K, Mitchell DRG, Rawal A, Hook J, et al., 'Feeding Biochar to Cows: An Innovative Solution for Improving Soil Fertility and Farm Productivity', PEDOSPHERE, 25 666-679 (2015) [C1]
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Nova |
2015 |
Yao C, Joseph S, Li L, Pan G, Lin Y, Munroe P, et al., 'Developing More Effective Enhanced Biochar Fertilisers for Improvement of Pepper Yield and Quality', PEDOSPHERE, 25 703-712 (2015) [C1]
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Nova |
2015 |
Glenn MJ, Allen JA, Donne SW, 'Thermal Investigation of a Doped Alkali-Metal Carbonate Ternary Eutectic for Direct Carbon Fuel Cell Applications', Energy and Fuels, 29 5423-5433 (2015) [C1]
The carbonate eutectic mixture of Li<inf>2</inf>CO<inf>3</inf>, K<inf>2</inf>CO<inf>3</inf>, and Na<inf>2</inf>CO<in... [more]
The carbonate eutectic mixture of Li<inf>2</inf>CO<inf>3</inf>, K<inf>2</inf>CO<inf>3</inf>, and Na<inf>2</inf>CO<inf>3</inf> is commonly used as an electrolyte within the direct carbon fuel cell. Here, seven different minerals common to the ash content of Australian bituminous coals (anatase TiO<inf>2</inf>, SiO<inf>2</inf>, CaCO<inf>3</inf>, CaSO<inf>4</inf>, Fe<inf>2</inf>O<inf>3</inf>, FeS, and kaolin) were used to modify the ternary carbonate eutectic to explore the thermodynamics of the carbonate melting process. Thermal effects were examined using differential thermal analysis, where it has been shown that dissolution of the contaminant leads to liquid-phase disruption, the extent of which varies with dopant type. Furthermore, modeling of the melting process carried out using different heating rates allowed determination of the activation energy for melting in the presence of the various contaminants, where it was shown that the contaminants can dramatically affect the activation energy and, subsequently, the kinetics of the melting process.
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Nova |
2015 |
Joseph S, Husson O, Graber ER, Van Zwieten L, Taherymoosavi S, Thomas T, et al., 'The electrochemical properties of biochars and how they affect soil redox properties and processes', Agronomy, 5 322-340 (2015) [C1]
Biochars are complex heterogeneous materials that consist of mineral phases, amorphous C, graphitic C, and labile organic molecules, many of which can be either electron donors or... [more]
Biochars are complex heterogeneous materials that consist of mineral phases, amorphous C, graphitic C, and labile organic molecules, many of which can be either electron donors or acceptors when placed in soil. Biochar is a reductant, but its electricaland electrochemical properties are a function of both the temperature of production and the concentration and composition of the various redox active mineral and organic phases present. When biochars are added to soils, they interact with plant roots and root hairs, micro-organisms, soil organic matter, proteins and the nutrient-rich water to form complex organo-mineral-biochar complexes Redox reactions can play an important role in the development of these complexes, and can also result in significant changes in the original C matrix. This paper reviews the redox processes that take place in soil and how they may be affected by the addition of biochar. It reviews the available literature on the redox properties of different biochars. It also reviews how biochar redox properties have been measured and presents new methods and data for determining redox properties of fresh biochars and for biochar/soil systems.
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Nova |
2015 |
Joseph S, Anawar HM, Storer P, Blackwell P, Chia C, Lin Y, et al., 'Effects of Enriched Biochars Containing Magnetic Iron Nanoparticles on Mycorrhizal Colonisation, Plant Growth, Nutrient Uptake and Soil Quality Improvement', PEDOSPHERE, 25 749-760 (2015) [C1]
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Nova |
2015 |
Quin P, Joseph S, Husson O, Donne S, Mitchell D, Munroe P, et al., 'Lowering N
Agricultural soils are the primary anthropogenic source of atmospheric nitrous oxide (N2OO), contributing to global warming and depletion of stratospheric ozone. Biochar addition ... [more]
Agricultural soils are the primary anthropogenic source of atmospheric nitrous oxide (N2OO), contributing to global warming and depletion of stratospheric ozone. Biochar addition has shown potential to lower soil N2OO emission, with the mechanisms remaining unclear. We incubated eucalypt biochar (550 °C) - 0, 1 and 5% (w/w) in Ferralsol at 3 water regimes (12, 39 and 54% WFPS) - in a soil column, following gamma irradiation. After N2OO was injected at the base of the soil column, in the 0% biochar control 100% of expected injected N2OO was released into headspace, declining to 67% in the 5% amendment. In a 100% biochar column at 6% WFPS, only 16% of the expected N2OO was observed. X-ray photoelectron spectroscopy identified changes in surface functional groups suggesting interactions between N2OO and the biochar surfaces. We have shown increases in -O-C = N /pyridine pyrrole/NH3, suggesting reactions between N2OO and the carbon (C) matrix upon exposure to N2OO. With increasing rates of biochar application, higher pH adjusted redox potentials were observed at the lower water contents. Evidence suggests that biochar has taken part in redox reactions reducing N2OO to dinitrogen (N2), in addition to adsorption of N2OO.
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Nova |
2014 |
Bailey MR, Denman JA, Donne SW, 'Electrode Additives and the Rechargeability of the Alkaline Manganese Dioxide Cathode', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 161 A403-A409 (2014) [C1]
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Nova |
2014 |
Dupont MF, Hollenkamp AF, Donne SW, 'Large Amplitude Electrochemical Impedance Spectroscopy for Characterizing the Performance of Electrochemical Capacitors', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 161 A648-A656 (2014) [C1]
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Nova |
2014 |
Dupont MF, Donne SW, 'Nucleation and growth of electrodeposited manganese dioxide for electrochemical capacitors', Electrochimica Acta, 120 219-225 (2014) [C1]
In this work the anodic electrodeposition of manganese dioxide from a solution of 0.01 M MnSO4 in 0.1 M H2SO4 onto a platinum substrate has been examined in order to determine the... [more]
In this work the anodic electrodeposition of manganese dioxide from a solution of 0.01 M MnSO4 in 0.1 M H2SO4 onto a platinum substrate has been examined in order to determine the mechanism of deposition. Electrochemical data indicates that the dilute acid solution favours the formation of MnO2 via a MnOOH intermediate (hydrolysis). The electrodeposited material was examined further using AFM and TEM which showed that the oxidation of Mn2+ occurs in a number of steps. When a potential is applied, Mn2+ is electrochemically oxidised to soluble Mn3+. When the concentration of Mn3+ at the electrode reaches saturation, it chemically precipitates onto the electrode as MnOOH, causing an increase in the electroactive surface area. This stage of the deposition is characterised by the nucleation of MnOOH crystallites on the platinum surface. As the deposition proceeds, MnOOH undergoes solid state oxidation to MnO2. This later stage of the deposition favours the growth of existing MnO2 crystallites, leading to a decrease in the surface area of the electrodeposited material. © 2014 Published by Elsevier Ltd.
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Nova |
2014 |
Allen JA, Tulloch J, Wibberley L, Donne SW, 'Kinetic analysis of the anodic carbon oxidation mechanism in a molten carbonate medium', Electrochimica Acta, 129 389-395 (2014) [C1]
The oxidation mechanism for carbon in a carbonate melt was modelled using an electrochemical kinetic approach. Through the Butler-Volmer equation for electrode kinetics, a series ... [more]
The oxidation mechanism for carbon in a carbonate melt was modelled using an electrochemical kinetic approach. Through the Butler-Volmer equation for electrode kinetics, a series of expressions was derived assuming each step of the proposed carbon oxidation mechanism is in turn the rate determining step (RDS). Through the derived expressions the transfer coefficient and Tafel slope were calculated for each possible RDS of the proposed mechanism and these were compared with real data collected on carbon based electrodes including graphite and coal. It was established that the RDS of the electrochemical oxidation process is dependent on both the carbon type and the potential region of oxidation. The simplified kinetic analysis suggested that the RDS in the main oxidation region is likely to be the first or second electron transfer on a graphite electrode surface, which occurs following initial adsorption of an oxygen anion to an active carbon site. This is contrary to previous suggestions that adsorption of the second anion to the carbon surface will be rate determining. It was further shown that use of a coal based carbon introduces a change in mechanism with an additional reaction region where a different mechanism is proposed to be operating. ©2014 Published by Elsevier Ltd.
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Nova |
2014 |
Dose WM, Sharma N, Donne SW, 'Mechanistic and structural investigation of Li
Increasingly there is demand for clean energy sources and suitable batteries to store this energy. Manganese dioxide and lithiated variants are a promising alternative to conventi... [more]
Increasingly there is demand for clean energy sources and suitable batteries to store this energy. Manganese dioxide and lithiated variants are a promising alternative to conventional Li-ion cathodes due to their cost, abundance, safety and electrochemical performance. Cathodes which operate by a single-phase lithium insertion/extraction process can offer some intrinsic advantages over those with two-phase processes. In this work, in-situ and ex-situ synchrotron X-ray diffraction (XRD) is used to investigate the structural evolution and lithium insertion/extraction mechanism of various LixMnO2 cathodes that have been derived from ¿-MnO2. Li0.30MnO2 is found to cycle solely with a single-phase mechanism, in contrast to previous literature reports, with only subtle changes in the crystal structure. However, a better cycling discharge capacity is realised through a two-step lithiation synthesis, thermally lithiated Li0.08MnO2 which is then electrochemically lithiated to Li0.33MnO2. After an irreversible two-phase reaction early in the first discharge, this material cycles by a single-phase reaction with good structural reversibility and a stable unoptimised cycling capacity of 120 mAh/g. Comparing cathodes using a combination of in-situ and ex-situ synchrotron XRD data allows us to rationalise cathodic performance with structure and thereby directing research into promising candidates. © 2014 Elsevier Ltd.
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Nova |
2014 |
Bian R, Joseph S, Cui L, Pan G, Li L, Liu X, et al., 'A three-year experiment confirms continuous immobilization of cadmium and lead in contaminated paddy field with biochar amendment', JOURNAL OF HAZARDOUS MATERIALS, 272 121-128 (2014) [C1]
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Nova |
2014 |
Dose WM, Sharma N, Webster NAS, Peterson VK, Donne SW, 'Kinetics of the thermally-induced structural rearrangement of -MnO
This work presents a temperature-dependent and time-resolved X-ray and neutron diffraction study of the thermally induced structural rearrangement of ¿-MnO2. Here, we study electr... [more]
This work presents a temperature-dependent and time-resolved X-ray and neutron diffraction study of the thermally induced structural rearrangement of ¿-MnO2. Here, we study electrochemically prepared ¿-MnO2, the manganese dioxide phase used in the majority of battery applications, which we find to be ~64% ramsdellite [a = 4.4351(6) Å, b = 9.486(2) Å, c = 2.8128(7) Å, and V = 118.33(3) Å3] and ~36% pyrolusite [a = 4.718(3) Å, c = 2.795(2) Å, and V = 62.22(8) Å3]. Taking a deeper look at the kinetics of the structural rearrangement, we find two steps: a fast transition occurring within 4-8 min with a temperature-dependent ramsdellite to pyrolusite transformation (rate constant 0.11-0.74 min-1) and a slow transition over 4 h that densifies (with changes in unit cell and volume) the ramsdellite and pyrolusite phases to give structures that appear to be temperature-independent. This effectively shows that ¿/ß-MnO2 prepared in the range of 200-400°C consists of temperature-independent structures of ramsdellite, unit cell a = 4.391(1) Å, b = 9.16(5) Å, c = 2.847(1) Å, and V = 114.5(6) Å3, and pyrolusite, unit cell a = 4.410(2) Å, c = 2.869(2) Å, and V = 55.79(4) Å3, with a temperature-dependent pyrolusite fraction between 0.45 and 0.77 and increasing with temperature. Therefore, we have linked the temperature and time of heat treatment to the structural evolution of ¿-MnO2, which will aid the optimization of ¿/ß-MnO2 as used in Li-primary batteries.
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2014 |
Allen JA, Rowe G, Hinkley JT, Donne SW, 'Electrochemical aspects of the Hybrid Sulfur Cycle for large scale hydrogen production', International Journal of Hydrogen Energy, (2014) [C1]
The Hybrid Sulfur Cycle is a thermo-electrochemical process designed for the large scale production of hydrogen. The two-step process is essentially based on water splitting using... [more]
The Hybrid Sulfur Cycle is a thermo-electrochemical process designed for the large scale production of hydrogen. The two-step process is essentially based on water splitting using various sulfur species as intermediates. The limiting step in the overall process is the electrochemical oxidation of sulfur dioxide to form sulphuric acid, which suffers from a substantial (~0.4V) anodic overpotential. Here we report on various aspects of sulfur dioxide oxidation in an acidic media including the effects of electrode preconditioning, the electrode substrate and electrolyte effects, the combination of which has allowed development of a sulfur dioxide oxidation mechanism which is described and discussed. Additionally, the electrochemical oxidation of sulfur dioxide has been shown to be an oscillating reaction, which is also a novel finding. © 2014 Hydrogen Energy Publications, LLC.
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Nova |
2014 |
Dose WM, Donne SW, 'Optimising heat treatment environment and atmosphere of electrolytic manganese dioxide for primary Li/MnO2 batteries', JOURNAL OF POWER SOURCES, 247 852-857 (2014) [C1]
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Nova |
2014 |
Tulloch J, Allen J, Wibberley L, Donne S, 'Influence of selected coal contaminants on graphitic carbon electro-oxidation for application to the direct carbon fuel cell', JOURNAL OF POWER SOURCES, 260 140-149 (2014) [C1]
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Nova |
2014 |
Dose WM, Sharma N, Donne SW, 'Discharge mechanism of the heat treated electrolytic manganese dioxide cathode in a primary Li/MnO
In this work the discharge mechanism for heat treated electrolytic manganese dioxide (HT-EMD) in a primary lithium battery is investigated. In-situ and ex-situ synchrotron X-ray d... [more]
In this work the discharge mechanism for heat treated electrolytic manganese dioxide (HT-EMD) in a primary lithium battery is investigated. In-situ and ex-situ synchrotron X-ray diffraction is utilized to study the structural evolution with respect to material utilization At a 4.3 mA g-1 discharge rate, HT-EMD undergoes a simultaneous two-phase transformation and solid solution reaction.
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Nova |
2014 |
Ningsih P, Holdsworth CZ, Donne SW, 'Mn-modified polypyrrole thin films for supercapacitor electrodes', Synthetic Metals, 196 8-19 (2014) [C1]
Thin film Mn-modified polypyrrole (PPy) composite electrodes have been prepared by chronoamperometric electrodeposition and characterized in terms of their physico-chemical and el... [more]
Thin film Mn-modified polypyrrole (PPy) composite electrodes have been prepared by chronoamperometric electrodeposition and characterized in terms of their physico-chemical and electrochemical properties and performance. Analysis of the chronoamperometric data shows that electrodeposition of the thin film results in a relative increase in electrochemically active surface area of up to 30 times. This finding was supported by transmission electron microscopy (TEM), atomic force microscopy (AFM) and profilometry analysis of the films. Electrochemical quartz crystal microbalance (EQCM) studies have allowed for the direct determination of electrode mass, both during deposition and electrochemical performance evaluation, which has enabled analysis of electrode properties, including film growth (up to 26 µg/cm2), density (~2 g/cm3), and the charge storage during electrochemical cycling, including the rates of mass uptake/removal with charge. The characteristics of the composite electrodes were compared with PPy-only electrodes throughout. © 2014 Elsevier B.V.
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Nova |
2014 |
Dose WM, Sharma N, Webster NAS, Peterson VK, Donne SW, 'Kinetics of the thermally-induced structural rearrangement of -MnO2', Journal of Physical Chemistry C, 118 24257-24265 (2014) [C1]
© 2014 American Chemical Society. This work presents a temperature-dependent and time-resolved Xray and neutron diffraction study of the thermally induced structural rearrangement... [more]
© 2014 American Chemical Society. This work presents a temperature-dependent and time-resolved Xray and neutron diffraction study of the thermally induced structural rearrangement of ¿-MnO2. Here, we study electrochemically prepared ¿-MnO2, the manganese dioxide phase used in the majority of battery applications, which we find to be ~64% ramsdellite [a = 4.4351(6) Å, b = 9.486(2) Å, c = 2.8128(7) Å, and V = 118.33(3) Å3] and ~36% pyrolusite [a = 4.718(3) Å, c = 2.795(2) Å, and V = 62.22(8) Å3]. Taking a deeper look at the kinetics of the structural rearrangement, we find two steps: A fast transition occurring within 4-8 min with a temperature-dependent ramsdellite to pyrolusite transformation (rate constant 0.11-0.74 min-1) and a slow transition over 4 h that densifies (with changes in unit cell and volume) the ramsdellite and pyrolusite phases to give structures that appear to be temperature-independent. This effectively shows that ¿/ß-MnO2 prepared in the range of 200-400°C consists of temperature-independent structures of ramsdellite, unit cell a = 4.391(1) Å, b = 9.16(5) Å, c = 2.847(1) Å, and V = 114.5(6) Å3, and pyrolusite, unit cell a = 4.410(2) Å, c = 2.869(2) Å, and V = 55.79(4) Å3, with a temperature-dependent pyrolusite fraction between 0.45 and 0.77 and increasing with temperature. Therefore, we have linked the temperature and time of heat treatment to the structural evolution of ¿-MnO2, which will aid the optimization of ¿/ß-MnO2 as used in Li-primary batteries.
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Nova |
2014 |
Latham KG, Jambu G, Joseph SD, Donne SW, 'Nitrogen doping of hydrochars produced hydrothermal treatment of sucrose in H
In this work, we have focused on the effect of highly acidic (0.2 M H 2SO4), neutral (H2O), and basic (0.2 M NaOH) solutions with and without the addition of 0.2 M (NH4) 2SO4 on t... [more]
In this work, we have focused on the effect of highly acidic (0.2 M H 2SO4), neutral (H2O), and basic (0.2 M NaOH) solutions with and without the addition of 0.2 M (NH4) 2SO4 on the chemical and structural morphologies of hydrothermally formed carbon spheres (hydrochar) from sucrose at 200°C for 4 h. Hydrolysis product yields without the addition of (NH4) 2SO4 varied considerably (11.34 wt % H2SO 4, 47.81 wt % H2O, and 3.54 wt % NaOH) as did spherical size (3.34, 4.57, and 6.63 nm for H2SO4, H2O, and NaOH, respectively). The addition of (NH4)2SO 4 increased product yields considerably in acidic and basic conditions (27.76 wt % H2SO4 and 14.73 wt % NaOH). Chemically, the hydrochars had a carbon content between 60 and 70 wt % and oxygen content between 22% and 29% with alcohol groups (12.29, 15.44, 11.26 atom % for H2SO4, H2O and NaOH respectively) the main oxygen functionality, although carbonyls, carboxylic acids, and ketones were also present. These oxygen functionalities fluctuated with the presence of (NH4)2SO4, with reductions in alcohols (1-3 atom %) and ketones (1-3 atom %), and increases in carboxylic acids. Nitrogen was located in pyridinic, pyrrolyic, and quaternary groups (6.24, 3.22, and 9.41 atom % for H2SO4, H2O, and NaOH, respectively). GC-MS revealed that levulinic acid was the predominate byproduct. © 2013 American Chemical Society.
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Nova |
2014 |
Bailey MR, Donne SW, 'Structural Variation in the gamma/beta-MnO2 Series and its Influence on Cathodic Cyclability', STUDENT POSTERS (GENERAL) - 224TH ECS MEETING, 58 109-124 (2014)
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2013 |
Bailey MR, Donne SW, 'Electrochemical Characterization of Proton Diffusion during Discharge and Cycling of -MnO2', Journal of the Electrochemical Society, 160 A2070-A2077 (2013) [C1]
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Nova |
2013 |
Jones TW, Bailey MR, Donne SW, 'Elucidation of the Discharge Mechanism of CuO Cathode Material in Alkaline Electrolyte', Journal of the Electrochemical Society, 160 A703-A708 (2013) [C1]
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Nova |
2013 |
Cross AD, Olcomendy I, Drozd M, Hollenkamp AF, Donne SW, 'Electrochemical Quartz Crystal Microbalance and Rotating Ring Disk Electrode Analysis of Manganese Dioxide Electrodeposition for Thin Film Electrochemical Capacitors', Journal of the Electrochemical Society, 160 A368-A375 (2013) [C1]
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Nova |
2013 |
Dupont MF, Cross AD, Morel A, Drozd M, Hollenkamp AF, Donne SW, 'Mass Transport Properties of Manganese Dioxide Phases for Use in Electrochemical Capacitors: Structural Effects on Solid State Diffusion', Journal of the Electrochemical Society, 160 A1219-A1231 (2013) [C1]
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Nova |
2013 |
Lehr J, Dose WM, Yakovleva M, Donne SW, 'Preparation and Electrochemical Performance of LixMnO2 Materials by a Reduction and Lithiation Method', Journal of the Electrochemical Society, 160 A1358-A1363 (2013) [C1]
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Nova |
2013 |
Dose WM, Donne SW, 'Heat treated electrolytic manganese dioxide for primary Li/MnO2 batteries: Effect of manganese dioxide properties on electrochemical performance', Electrochimica Acta, 105 305-313 (2013) [C1]
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Nova |
2013 |
Nolan JP, Jones TW, Donne SW, Wilson GJ, 'Tuning the electrochemistry of homoleptic cobalt 4,4'-disubstituted-2,2'-bipyridine redox mediators', Electrochimica Acta, 108 690-697 (2013) [C1]
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Nova |
2013 |
Dupont M, Hollenkamp AF, Donne SW, 'Electrochemically active surface area effects on the performance of manganese dioxide for electrochemical capacitor applications', Electrochimica Acta, 104 140-147 (2013) [C1]
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Nova |
2013 |
Cross A, Morel A, Drozd M, Olcomendy I, Hollenkamp AF, Donne SW, 'Active mass analysis on thin films of electrodeposited manganese dioxide for electrochemical capacitors', Electrochimica Acta, 87 133-139 (2013) [C1]
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Nova |
2013 |
Dose W, Donne SW, 'Optimizing Li/MnO 2 batteries: Relating manganese dioxide properties and electrochemical performance', Journal of Power Sources, 221 261-265 (2013) [C1]
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Nova |
2013 |
Dose WM, Donne SW, 'Thermal expansion of manganese dioxide using high-temperature in situ X-ray diffraction', Journal of Applied Crystallography, 46 1283-1288 (2013) [C1]
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Nova |
2013 |
Joseph S, Graber ER, Chia C, Munroe P, Donne S, Thomas T, et al., 'Shifting paradigms: development of high-efficiency biochar fertilizers based on nano-structures and soluble components', CARBON MANAGEMENT, 4 323-343 (2013) [C1]
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Nova |
2012 |
Bailey MR, Donne SW, 'Detection of Soluble Mn(III) Species during Cycling of Alkaline gamma-MnO2 and the Influence of Barium Hydroxide Inclusion', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 159 A2010-A2015 (2012) [C1]
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2012 |
Bailey MR, Denman JA, King BV, Donne SW, 'Role of titanium dioxide in enhancing the performance of the alkaline manganese dioxide cathode', Journal of the Electrochemical Society, 159 A158-A165 (2012) [C1]
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Nova |
2012 |
Lehr J, Dose W, Yakovleva M, Donne SW, 'Thermal lithiation of manganese dioxide: Effect of low lithium concentration (x = 0.3 in Li xMnO 2) on structure and electrochemical performance', Journal of the Electrochemical Society, 159 A904-A908 (2012) [C1]
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Nova |
2012 |
Bailey MR, Donne SW, 'The effect of barium hydroxide on the rechargeable performance of alkaline -MnO2', Journal of the Electrochemical Society, 159 A999-A1004 (2012) [C1]
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Nova |
2012 |
Allen JA, Hinkley JT, Donne SW, 'Electrochemical oxidation of aqueous sulfur dioxide II: Comparative studies on platinum and gold electrodes', Journal of the Electrochemical Society, 159 F585-F593 (2012) [C1]
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Nova |
2012 |
Favier F, Frackowiak E, Donne SW, 'Foreword', Electrochimica Acta, 86 223-224 (2012) [C3] |
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2012 |
Dose W, Lehr J, Donne SW, 'Characterisation of chemically lithiated heat-treated electrolytic manganese dioxide', Materials Research Bulletin, 47 1827-1834 (2012) [C1]
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Nova |
2011 |
Cross A, Morel A, Hollenkamp TF, Donne SW, 'Chronoamperometric versus galvanostatic preparation of manganese oxides for electrochemical capacitors', Journal of the Electrochemical Society, 158 A1160-A1165 (2011) [C1]
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Nova |
2011 |
Bailey MR, Donne SW, 'Electrochemical impedance spectroscopy study into the effect of titanium dioxide added to the alkaline manganese dioxide cathode', Journal of the Electrochemical Society, 158 A802-A808 (2011) [C1]
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Nova |
2011 |
Dose W, Donne SW, 'Heat treated electrolytic manganese dioxide for Li/MnO(2) batteries: Effect of precursor properties', Journal of the Electrochemical Society, 158 A1036-A1041 (2011) [C1]
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Nova |
2011 |
Dose W, Donne SW, 'Thermal treatment effects on manganese dioxide structure, morphology and electrochemical performance', Journal of the Electrochemical Society, 158 A905-A912 (2011) [C1]
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Nova |
2011 |
Allen JA, Hinkley JT, Donne SW, 'Observed electrochemical oscillations during the oxidation of aqueous sulfur dioxide on a sulfur modified platinum electrode', Electrochimica Acta, 56 4224-4230 (2011) [C1]
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2011 |
Jones TW, Lewandowski AP, Donne SW, 'Discharge performance of a primary alkaline CuO cathode material prepared via a novel non-aqueous precipitation method', Electrochimica Acta, 56 4996-5002 (2011) [C1]
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Nova |
2011 |
Bailey MR, Donne SW, 'Structural effects on the cyclability of the alkaline gamma-MnO(2) electrode', Electrochimica Acta, 56 5037-5045 (2011) [C1]
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Nova |
2011 |
Lim R, McPherson AE, Donne SW, Callister RJ, Brichta AM, 'Potassium accumulation between type I hair cells and calyx terminals in mouse crista', Experimental Brain Research, 210 607-621 (2011) [C1]
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Nova |
2011 |
Cross A, Morel A, Cormie AJ, Hollenkamp T, Donne SW, 'Enhanced manganese dioxide supercapacitor electrodes produced by electrodeposition', Journal of Power Sources, 196 7847-7853 (2011) [C1]
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Nova |
2011 |
Dose W, Donne SW, 'Manganese dioxide structural effects on its thermal decomposition', Materials Science and Engineering B, 176 1169-1177 (2011) [C1]
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Nova |
2011 |
Sarkar SK, Donne SW, Evans GM, 'Utilization of hydrogen in electroflotation of silica', Advanced Powder Technology, 22 482-492 (2011) [C1]
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Nova |
2011 |
Dose W, Donne SW, 'Kinetic analysis of y-MnO2 thermal treatment', Journal of Thermal Analysis and Calorimetry, 105 113-122 (2011) [C1]
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Nova |
2010 |
Jones BC, Hollenkamp AF, Donne SW, 'Ultrasonication during the synthesis of manganese oxides for electrochemical capacitors', Journal of the Electrochemical Society, 157 A551-A557 (2010) [C1]
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Nova |
2010 |
Allen JA, Hinkley JT, Donne SW, 'The electrochemical oxidation of aqueous sulfur dioxide: I. Experimental parameter influences on electrode behavior', Journal of the Electrochemical Society, 157 F111-F115 (2010) [C1]
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Nova |
2010 |
Allen JA, Hinkley JT, Donne SW, Lindquist S-E, 'The electrochemical oxidation of aqueous sulfur dioxide: A critical review of work with respect to the hybrid sulfur cycle', Electrochimica Acta, 55 573-591 (2010) [C1]
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Nova |
2010 |
Cormie AJ, Cross A, Hollenkamp AF, Donne SW, 'Cycle stability of birnessite manganese dioxide for electrochemical capacitors', Electrochimica Acta, 55 7470-7478 (2010) [C1]
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Nova |
2010 |
Donne SW, Hollenkamp AF, Jones BC, 'Structure, morphology and electrochemical behaviour of manganese oxides prepared by controlled decomposition of permanganate', Journal of Power Sources, 195 367-373 (2010) [C1]
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Nova |
2010 |
Lewandowski AP, Hollenkamp AF, Donne SW, Best AS, 'Cycling and rate performance of Li-LiFePO4 cells in mixed FSI-TFSI room temperature ionic liquids', Journal of Power Sources, 195 2029-2035 (2010) [C1]
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2010 |
Sarkar SK, Evans GM, Donne SW, 'Bubble size measurement in electroflotation', Minerals Engineering, 23 1058-1065 (2010) [C1]
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Nova |
2010 |
Sarkar SK, Donne SW, Evans GM, 'Hydrogen bubble flotation of silica', Advanced Powder Technology, 21 412-418 (2010) [C1]
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Nova |
2010 |
Turner NW, Holdsworth CI, Donne SW, McCluskey A, Bowyer MC, 'Microwave induced MIP synthesis: comparative analysis of thermal and microwave induced polymerisation of caffeine imprinted polymers', New Journal of Chemistry, 34 686-692 (2010) [C1]
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Nova |
2009 |
Walanda DK, Lawrance GA, Donne SW, 'Kinetics of Mn2O3 digestion in H2SO4 solutions', Journal of Solid State Chemistry, 182 1336-1342 (2009) [C1]
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Nova |
2009 |
Tulloch JR, Donne SW, 'Activity of perovskite La1-xSrxMnO3 catalysts towards oxygen reduction in alkaline electrolytes', Journal of Power Sources, 188 359-366 (2009) [C1]
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Nova |
2009 |
Hughes LM, Griffith R, Carey A, Butler TA, Donne SW, Beagley KW, Aitken RJ, 'The spermostatic and microbicidal actions of quinones and maleimides: Toward a dual-purpose contraceptive agent', Molecular Pharmacology, 76 113-124 (2009) [C1]
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Nova |
2008 |
Malloy AP, Donne SW, 'Chronoamperometric characterization of manganese dioxide discharge in alkaline electrolytes', Journal of Electroanalytical Chemistry, 621 83-90 (2008) [C1]
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Nova |
2008 |
Malloy AP, Donne SW, 'Porosity changes during reduction of y-Mn O2 for aqueous alkaline applications', Journal of the Electrochemical Society, 155 817-824 (2008) [C1]
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Nova |
2008 |
Malloy AP, Donne SW, 'Surface characterisation of chemically reduced electrolytic manganese dioxide', Journal of Colloid and Interface Science, 320 210-218 (2008) [C1]
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Nova |
2008 |
Hsieh Y-C, Lee K-T, Lin Y-P, Wu N-L, Donne SW, 'Investigation on capacity fading of aqueous MnO2 center dot nH(2)O electrochemical capacitor', Journal of Power Sources, 177 660-664 (2008) [C1]
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Nova |
2008 |
Malloy AP, Donne SW, 'Characterization of solid electrode materials using chronoamperometry: A study of the alkaline gamma-MnO2 electrode', Journal of Power Sources, 179 371-380 (2008) [C1]
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Nova |
2008 |
Wakeham D, Donne SW, Belcher WJ, Dastoor PC, 'Electrochemical and morphological characterization of electrodeposited poly(2,2':5',2'-terthiophene) for photovoltaic applications', Synthetic Metals, 158 661-669 (2008) [C1]
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Nova |
2007 |
Arnott JB, Williams RP, Pandolfo AG, Donne SW, 'Microporosity of heat-treated manganese dioxide', Journal of Power Sources, 165 581-590 (2007) [C1]
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2007 |
Jones TW, Forrester JS, Hamilton A, Rose MG, Donne SW, 'Discharge rate capabilities of alkaline AgCuO2 electrode', Journal of Power Sources, 172 962-969 (2007) [C1]
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2007 |
Skipworth E, Donne SW, 'Role of graphite in self-discharge of nickel(III) oxyhydroxide', Journal of Power Sources, 174 186-190 (2007) [C1]
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2007 |
Liu B, Thomas PS, Ray AS, Williams RP, Donne SW, 'DSC characterisation of chemically reduced electrolytic manganese dioxide', Journal of Thermal Analysis and Calorimetry, 88 177-180 (2007) [C1]
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Nova |
2007 |
Arnott JB, Donne SW, 'Examining manganese dioxide - Graphite connectivity in alkaline electrolytes', Journal of the Electrochemical Society, 154 A776-A783 (2007) [C1]
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2007 |
Owen MP, Lawrance GA, Donne SW, 'An electrochemical quartz crystal microbalance study into the deposition of manganese dioxide', Electrochimica Acta, 52 4630-4639 (2007) [C1]
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Nova |
2007 |
Gelderman K, Lee L, Donne SW, 'Flat-band potential of a semiconductor: using the Mott-Schottky equation', Journal of Chemical Education, 84 685-688 (2007) [C1]
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2006 |
Arnott JB, Browning GJ, Donne SW, 'Study on manganese dioxide discharge using electrochemical impedance spectroscopy', Journal of the Electrochemical Society, 153 A1332-A1340 (2006) [C1]
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Nova |
2006 |
Utomo WB, Donne SW, 'Electrochemical behaviour of titanium in H2SO4-MnSO4 electrolytes', Electrochimica Acta, 51 3338-3345 (2006) [C1]
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Nova |
2006 |
Clarke CJ, Browning GJ, Donne SW, 'An RDE and RRDE study into the electrodeposition of manganese dioxide', Electrochimica Acta, 51 5773-5784 (2006) [C1]
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2005 |
Browning GJ, Donne SW, 'Electrochemical kinetic behaviour of the aqueous manganese dioxide electrode', Journal of Applied Electrochemistry, 35 437-443 (2005) [C1]
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Nova |
2005 |
Browning GJ, Donne SW, 'Proton diffusion in gamma-manganese dioxide', Journal of Applied Electrochemistry, 35 871-878 (2005) [C1]
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Nova |
2005 |
Walanda DK, Lawrance GA, Donne SW, 'Hydrothermal MnO2: synthesis, structure, morphology and discharge performance', Journal of Power Sources, 139 325-341 (2005) [C1]
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2005 |
Liu B, Thomas PS, Williams RP, Donne SW, 'Thermal characterization of chemically reduced electrolytic manganese dioxide', Journal of Thermal Analysis and Calorimetry, 80 625-629 (2005) [C1]
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Nova |
2005 |
Malloy AP, Browning GJ, Donne SW, 'Surface characterization of heat-treated electrolytic manganese dioxide', Journal of Colloid and Interface Science, 285 653-664 (2005) [C1]
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Nova |
2004 |
Donne SW, Kennedy JH, 'Electrochemical impedance spectroscopy of the alkaline manganese dioxide electrode', JOURNAL OF APPLIED ELECTROCHEMISTRY, 34 159-168 (2004) [C1]
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2004 |
Donne SW, Kennedy JH, 'Transmission line modeling of the manganese dioxide electrode in concentrated KOH electrolytes', JOURNAL OF APPLIED ELECTROCHEMISTRY, 34 477-486 (2004) [C1]
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2004 |
Devenney M, Donne SW, Gorer S, 'Application of combinatorial methodologies to the synthesis and characterization of electolytic manganese dioxide', Journal of Applied Electrochemistry, 34 643-651 (2004) [C1]
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Nova |
2002 |
Donne SW, Feddrix F, Glockner R, Marion S, Norby T, 'Water and protons in electrodeposited MnO2 (EMD)', Solid State Ionics, 152 695-701 (2002) [C1]
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Nova |
1997 |
Donne SW, Lawrance GA, Swinkels DAJ, 'Redox processes at the manganese dioxide electrode .1. Constant-current intermittent discharge', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 144 2949-2953 (1997)
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1997 |
Donne SW, Lawrance GA, Swinkels DAJ, 'Redox processes at the manganese dioxide electrode .2. Slow-scan cyclic voltammetry', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 144 2954-2961 (1997)
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1997 |
Donne SW, Lawrance GA, Swinkels DAJ, 'Redox processes at the manganese dioxide electrode .3. Detection of soluble and solid intermediates during reduction', JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 144 2961-2967 (1997)
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1995 |
DONNE SW, LAWRANCE GA, SWINKELS DAJ, 'THE CHEMOSTAT - A NOVEL-APPROACH TO THE SYNTHESIS OF MANGANESE-DIOXIDE', MATERIALS RESEARCH BULLETIN, 30 859-869 (1995)
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