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Electrolysis of metal oxides in MgCl2 based molten salts with an inert graphite anode (2016)
Journal Article
Yuan, Y., Li, W., Chen, H., Wang, Z., Jin, X., & Chen, G. Z. (2016). Electrolysis of metal oxides in MgCl2 based molten salts with an inert graphite anode. Faraday Discussions, 190, 85-96. https://doi.org/10.1039/c5fd00231a

Electrolysis of solid metal oxides has been demonstrated in MgCl2–NaCl–KCl melt at 700 °C taking the electrolysis of Ta2O5 as an example. Both the cathodic and anodic processes have been investigated using cyclic voltammetry, and potentiostatic and c... Read More about Electrolysis of metal oxides in MgCl2 based molten salts with an inert graphite anode.

Bipolarly stacked electrolyser for energy and space efficient fabrication of supercapacitor electrodes (2016)
Journal Article
Liu, X., Wu, T., Dai, Z., Tao, K., Shi, Y., Peng, C., Zhou, X., & Chen, G. Z. (2016). Bipolarly stacked electrolyser for energy and space efficient fabrication of supercapacitor electrodes. Journal of Power Sources, 307, 208-213. https://doi.org/10.1016/j.jpowsour.2016.01.006

Stacked electrolysers with titanium bipolar plates are constructed for electrodeposition of polypyrrole electrodes for supercapacitors. The cathode side of the bipolar Ti plates are pre-coated with activated carbon. In this new design, half electroly... Read More about Bipolarly stacked electrolyser for energy and space efficient fabrication of supercapacitor electrodes.

Developing energy efficient lignin biomass processing – towards understanding mediator behaviour in ionic liquids (2016)
Journal Article
Eshtaya, M., Ejigu, A., Stephens, G., Walsh, D. A., Chen, G. Z., & Croft, A. K. (2016). Developing energy efficient lignin biomass processing – towards understanding mediator behaviour in ionic liquids. Faraday Discussions, 190, 127-145. https://doi.org/10.1039/c5fd00226e

Environmental concerns have brought attention to the requirement for more efficient and renewable processes for chemicals production. Lignin is the second most abundant natural polymer, and might serve as a sustainable resource for manufacturing fuel... Read More about Developing energy efficient lignin biomass processing – towards understanding mediator behaviour in ionic liquids.

Highly efficient photoanodes based on cascade structural semiconductors of Cu2Se/CdSe/TiO2: A multifaceted approach to achieving microstructural and compositional control (2016)
Journal Article
Chong, B., Zhu, W., Liu, Y., Guan, L., & Chen, G. Z. (2016). Highly efficient photoanodes based on cascade structural semiconductors of Cu2Se/CdSe/TiO2: A multifaceted approach to achieving microstructural and compositional control. Journal of Materials Chemistry A, 4, 1336-1344. https://doi.org/10.1039/c5ta09179a

© The Royal Society of Chemistry 2016. Hydrogen produced by splitting water is receiving significant attention due to the rising global energy demand and growing climate concerns. The photocatalytic decomposition of water converts solar energy into c... Read More about Highly efficient photoanodes based on cascade structural semiconductors of Cu2Se/CdSe/TiO2: A multifaceted approach to achieving microstructural and compositional control.

High energy supercapattery with an ionic liquid solution of LiClO4 (2016)
Journal Article
Yu, L., & Chen, G. Z. (2016). High energy supercapattery with an ionic liquid solution of LiClO4. Faraday Discussions, 190, 231-240. https://doi.org/10.1039/C5FD00232J

A supercapattery combining an ideally polarized capacitor-like electrode and a battery-like electrode is demonstrated theoretically and practically using an ionic liquid electrolyte containing 1-butyl-1-methylpyrrolidinium tri(pentafluoroethyl)triflu... Read More about High energy supercapattery with an ionic liquid solution of LiClO4.

Environmental and energy gains from using molten magnesium-sodium-potassium chlorides for electro-metallisation of refractory metal oxides (2015)
Journal Article
Li, W., Yuan, Y., Jin, X., Chen, H., & Chen, G. Z. (2015). Environmental and energy gains from using molten magnesium-sodium-potassium chlorides for electro-metallisation of refractory metal oxides. Progress in Natural Science, 25(6), 650-653. https://doi.org/10.1016/j.pnsc.2015.11.002

© 2015 The Authors. The molten eutectic mixture of magnesium, sodium and potassium chlorides (MgCl2-NaCl-KCl) has inappreciable solubility for oxide ions, and can help disengage a carbon anode from the oxide ions generated at a metal oxide cathode, a... Read More about Environmental and energy gains from using molten magnesium-sodium-potassium chlorides for electro-metallisation of refractory metal oxides.

Correlation of energy storage performance of supercapacitor with iso-propanol improved wettability of aqueous electrolyte on activated carbon electrodes of various apparent densities (2015)
Journal Article
Gromadskyi, D. G., Chae, J. H., Norman, S. A., & Chen, G. Z. (2015). Correlation of energy storage performance of supercapacitor with iso-propanol improved wettability of aqueous electrolyte on activated carbon electrodes of various apparent densities. Applied Energy, 159, 39-50. https://doi.org/10.1016/j.apenergy.2015.08.108

© 2015 Elsevier Ltd. Addition of iso-propanol in the aqueous electrolyte of 1.0mol/L Na2SO4 was found to be most effective at about 8vol.% to minimise electrolyte surface tension, and hence maximise electrolyte wetting on a commercial supercapacitor... Read More about Correlation of energy storage performance of supercapacitor with iso-propanol improved wettability of aqueous electrolyte on activated carbon electrodes of various apparent densities.

Organoaqueous calcium chloride electrolytes for capacitive charge storage in carbon nanotubes at sub-zero-temperatures (2015)
Journal Article
Gao, Y., Qin, Z., Guan, L., Wang, X., & Chen, G. Z. (2015). Organoaqueous calcium chloride electrolytes for capacitive charge storage in carbon nanotubes at sub-zero-temperatures. Chemical Communications, 51(54), 10819-10822. https://doi.org/10.1039/c5cc03048j

© The Royal Society of Chemistry. Solutions of calcium chloride in mixed water and formamide are excellent electrolytes for capacitive charge storage in partially oxidised carbon nanotubes at unprecedented sub-zero-temperatures (e.g. 67% capacitance... Read More about Organoaqueous calcium chloride electrolytes for capacitive charge storage in carbon nanotubes at sub-zero-temperatures.

Cell voltage versus electrode potential range in aqueous supercapacitors (2015)
Journal Article
Dai, Z., Peng, C., Chae, J. H., Ng, K. C., & Chen, G. Z. (2015). Cell voltage versus electrode potential range in aqueous supercapacitors. Scientific Reports, 5(1), Article 9854. https://doi.org/10.1038/srep09854

Supercapacitors with aqueous electrolytes and nanostructured composite electrodes are attractive because of their high charging-discharging speed, long cycle life, low environmental impact and wide commercial affordability. However, the energy capaci... Read More about Cell voltage versus electrode potential range in aqueous supercapacitors.

Supercapatteries with Hybrids of Redox Active Polymers and Nanostructured Carbons (2015)
Book Chapter
Stevenson, A. J., Gromadskyi, D. G., Hu, D., Chae, J., Guan, L., Yu, L., & Chen, G. Z. (2015). Supercapatteries with Hybrids of Redox Active Polymers and Nanostructured Carbons. In X. Feng (Ed.), Nanocarbons for Advanced Energy Storage. Volume 1 (179-210). Wiley. https://doi.org/10.1002/9783527680054.ch6

© 2015 Wiley-VCH Verlag GmbH & Co. KGaA. All rights reserved. This chapter considers the development and role of supercapatteries as practical energy storage devices for commercial development. Current battery technology can produce a high power de... Read More about Supercapatteries with Hybrids of Redox Active Polymers and Nanostructured Carbons.

Electrochemical preparation of fine powders of nickel-boron alloys in molten chlorides for magnetic hydrogenation catalysts (2015)
Journal Article
Peng, J., He, R., Tan, M., Dou, Y., Wang, Z., Chen, G. Z., & Jin, X. (2015). Electrochemical preparation of fine powders of nickel-boron alloys in molten chlorides for magnetic hydrogenation catalysts. Journal of The Electrochemical Society, 162(4), H271-H277. https://doi.org/10.1149/2.0871504jes

© The Author(s) 2015. Fine powders of magnetic nickel-boron alloys were prepared for the first time by direct electrochemical reduction of the 2Ni3(BO3)2/B2O3, Ni3(BO3)2/NiO and Ni3(BO3)2/3NiO composite precursors in molten CaCl2-NaCl at 700°C. Precu... Read More about Electrochemical preparation of fine powders of nickel-boron alloys in molten chlorides for magnetic hydrogenation catalysts.

Redox electrolytes in supercapacitors (2015)
Journal Article
Akinwolemiwa, B., Peng, C., & Chen, G. Z. (2015). Redox electrolytes in supercapacitors. Journal of The Electrochemical Society, 162(5), A5054-A5059. https://doi.org/10.1149/2.0111505jes

© The Author(s) 2015. Most methods for improving supercapacitor performance are based on developments of electrode materials to optimally exploit their storage mechanisms, namely electrical double layer capacitance and pseudocapacitance. In such case... Read More about Redox electrolytes in supercapacitors.

The FFC Cambridge process and its relevance to valorisation of ilmenite and titanium-rich slag (2014)
Journal Article
Chen, G. Z. (2015). The FFC Cambridge process and its relevance to valorisation of ilmenite and titanium-rich slag. Mineral Processing and Extractive Metallurgy, 124(2), 96-105. https://doi.org/10.1179/1743285514y.0000000073

© 2015 Institute of Materials, Minerals and Mining and The AusIMM. The Fray-Farthing-Chen (FFC) Cambridge process was patented in 1998 for low cost and clean electrochemical extraction of metals and synthesis of alloys directly from the mineral precu... Read More about The FFC Cambridge process and its relevance to valorisation of ilmenite and titanium-rich slag.

Titanium carbide nanocube core induced interfacial growth of crystalline polypyrrole/polyvinyl alcohol lamellar shell for wide-temperature range supercapacitors (2014)
Journal Article
Weng, Y.-T., Pan, H.-A., Wu, N.-L., & Chen, G. Z. (2015). Titanium carbide nanocube core induced interfacial growth of crystalline polypyrrole/polyvinyl alcohol lamellar shell for wide-temperature range supercapacitors. Journal of Power Sources, 274, 1118-1125. https://doi.org/10.1016/j.jpowsour.2014.10.158

This is the first investigation on electrically conducting polymers–based supercapacitor electrodes over a wide temperature range, from −18 °C to 60 °C. A high-performance supercapacitor electrode material consisting of TiC nanocube core and conforma... Read More about Titanium carbide nanocube core induced interfacial growth of crystalline polypyrrole/polyvinyl alcohol lamellar shell for wide-temperature range supercapacitors.

Influences of graphite anode area on electrolysis of solid metal oxides in molten salts (2014)
Journal Article
Chen, H., Jin, X., Yu, L., & Chen, G. Z. (2014). Influences of graphite anode area on electrolysis of solid metal oxides in molten salts. Journal of Solid State Electrochemistry, 18(12), 3317-3325. https://doi.org/10.1007/s10008-014-2645-2

Laboratory studies of electrochemical reduction of refractory metal oxides, e.g. TiO2 and Ta2O5, in molten CaCl2 often involve a graphite anode and a cell voltage of 3.0 V or higher, which deviates significantly from thermodynamic predictions. The ca... Read More about Influences of graphite anode area on electrolysis of solid metal oxides in molten salts.

Investigation of electrochemical reduction of GeO2 to Ge in molten CaCl2-NaCl (2014)
Journal Article
Rong, L., He, R., Wang, Z., Peng, J., Jin, X., & Chen, G. Z. (2014). Investigation of electrochemical reduction of GeO2 to Ge in molten CaCl2-NaCl. Electrochimica Acta, 147, 352-359. https://doi.org/10.1016/j.electacta.2014.09.107

Electrochemical reduction of solid GeO2 has been investigated in the mixed CaCl2-NaCl melt at 1023 K for developing a more efficient process for preparation of Ge. Cyclic voltammetry and potentiostatic electrolysis were applied to study the GeO2-load... Read More about Investigation of electrochemical reduction of GeO2 to Ge in molten CaCl2-NaCl.

Assessing the accuracy of loss estimation methods for supercapacitor energy storage devices operating under constant power cycling (2014)
Presentation / Conference Contribution
Kulsangcharoen, P., Klumpner, C., Rashed, M., Asher, G., Chen, G. Z., & Norman, S. A. (2014, August). Assessing the accuracy of loss estimation methods for supercapacitor energy storage devices operating under constant power cycling. Presented at 2014 16th European Conference on Power Electronics and Applications (EPE'14-ECCE Europe), Lappeenranta, Finland

This paper assesses different energy loss estimation methods using the supercapacitor model parameters extracted from the electrochemical impedance spectroscopy (EIS). Two energy loss estimation methods are applied to two similar supercapacitors from... Read More about Assessing the accuracy of loss estimation methods for supercapacitor energy storage devices operating under constant power cycling.