All Outputs (34)

Supercapattery: Merit merge of capacitive and Nernstian charge storage mechanisms (2020)
Journal Article
Chen, G. Z. (2020). Supercapattery: Merit merge of capacitive and Nernstian charge storage mechanisms. Current Opinion in Electrochemistry, 21, 358-367. https://doi.org/10.1016/j.coelec.2020.04.002

© 2020 Elsevier B.V. Supercapattery is the generic name for hybrids of supercapacitor and rechargeable battery. Batteries store charge via Faradaic processes, involving reversible transfer of localised or zone-delocalised valence electrons. The forme... Read More about Supercapattery: Merit merge of capacitive and Nernstian charge storage mechanisms.

A Co9S8 microsphere and N-doped carbon nanotube composite host material for lithium-sulfur batteries (2020)
Journal Article
Xi, Y., Angulakshmi, N., Zhang, B., Tian, X., Tang, Z., Xie, P., …Zhou, Y. (2020). A Co9S8 microsphere and N-doped carbon nanotube composite host material for lithium-sulfur batteries. Journal of Alloys and Compounds, 826, 154201. https://doi.org/10.1016/j.jallcom.2020.154201

© 2020 Elsevier B.V. Lithium-sulfur batteries have emerged as extraordinarily favorable energy storage devices due to their high specific capacity and energy density, safety and low cost. Unfortunately, the wide applications of lithium-sulfur batteri... Read More about A Co9S8 microsphere and N-doped carbon nanotube composite host material for lithium-sulfur batteries.

Microfluidic formation of highly monodispersed multiple cored droplets using needle-based system in parallel mode (2020)
Journal Article
Lian, Z., Chan, Y., Luo, Y., Yang, X., Koh, K. S., Wang, J., …He, J. (2020). Microfluidic formation of highly monodispersed multiple cored droplets using needle-based system in parallel mode. ELECTROPHORESIS, 41(10-11), 891-901. https://doi.org/10.1002/elps.201900403

© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Scale-up in droplet microfluidics achieved by increasing the number of devices running in parallel or increasing the droplet makers in the same device can compromise the narrow droplet-size distribu... Read More about Microfluidic formation of highly monodispersed multiple cored droplets using needle-based system in parallel mode.

Dental resin monomer enables unique NbO2 /carbon lithium?ion battery negative electrode with exceptional performance (2019)
Journal Article
Ji, Q., Gao, X., Zhang, Q., Jin, L., Wang, D., Xia, Y., …Cheng, Y. (2019). Dental resin monomer enables unique NbO2 /carbon lithium‐ion battery negative electrode with exceptional performance. Advanced Functional Materials, 29(43), Article 1904961. https://doi.org/10.1002/adfm.201904961

Niobium dioxide (NbO2) features a high theoretical capacity and an outstanding electron conductivity, which makes it a promising alternative to the commercial graphite negative electrode. However, studies on NbO2 based lithium?ion battery negative el... Read More about Dental resin monomer enables unique NbO2 /carbon lithium?ion battery negative electrode with exceptional performance.

Mechano‐Fenton–Piranha Oxidation of Carbon Nanotubes for Energy Application (2019)
Journal Article
Wei, C., Akinwolemiwa, B., Wang, Q., Guan, L., Xia, L., Hu, D., …Chen, G. Z. (2019). Mechano‐Fenton–Piranha Oxidation of Carbon Nanotubes for Energy Application. Advanced Sustainable Systems, 3(11), Article 1900065. https://doi.org/10.1002/adsu.201900065

Emission of nitrogen oxides (NOx) from chemical processing of materials is a serious environmental concern, frustrating the development of many innovative technologies. For example, sulfonitric oxidation is the most widely used method for processing... Read More about Mechano‐Fenton–Piranha Oxidation of Carbon Nanotubes for Energy Application.

Assessment of toxicity reduction in ZnS substituted CdS:P3HT bulk heterojunction solar cells fabricated using a single-source precursor deposition (2019)
Journal Article
Bishop, M. T., Tomatis, M., Zhang, W., Peng, C., Chen, G. Z., He, J., & Hu, D. (2019). Assessment of toxicity reduction in ZnS substituted CdS:P3HT bulk heterojunction solar cells fabricated using a single-source precursor deposition. Sustainable Energy and Fuels, 3(4), 948-955. https://doi.org/10.1039/c9se00123a

Utilisation of cadmium sulphide (CdS) for the preparation of hybrid bulk heterojunction (BHJ) solar cells is limited due to its high human, soil and marine toxicity. This work aims to reduce the toxicity of the cadmium based hybrid bulk heterojunctio... Read More about Assessment of toxicity reduction in ZnS substituted CdS:P3HT bulk heterojunction solar cells fabricated using a single-source precursor deposition.

A Rechargeable High-Temperature Molten Salt Iron–Oxygen Battery (2018)
Journal Article
Peng, C., Guan, C., Lin, J., Zhang, S., Bao, H., Wang, Y., …Wang, J. Q. (2018). A Rechargeable High-Temperature Molten Salt Iron–Oxygen Battery. ChemSusChem, 11(11), 1880-1886. https://doi.org/10.1002/cssc.201800237

© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The energy and power density of conventional batteries are far lower than their theoretical expectations, primarily because of slow reaction kinetics that are often observed under ambient conditions... Read More about A Rechargeable High-Temperature Molten Salt Iron–Oxygen Battery.

Molecular level one-step activation of agar to activated carbon for high performance supercapacitors (2018)
Journal Article
Zhang, L., Gu, H., Sun, H., Cao, F., Chen, Y., & Chen, G. Z. (2018). Molecular level one-step activation of agar to activated carbon for high performance supercapacitors. Carbon, 132, 573-579. https://doi.org/10.1016/j.carbon.2018.02.100

Activated carbon was synthesized by a simple one-step calcination of deoxygenated agar in a hot KOH aqueous solution, in which KOH plays both deoxidant and activation agent. The deoxygenation course omits high temperature carbonization in the convent... Read More about Molecular level one-step activation of agar to activated carbon for high performance supercapacitors.

Development of the Fray-Farthing-Chen Cambridge Process: towards the sustainable production of titanium and its alloys (2017)
Journal Article
Hu, D., Dolganov, A., Ma, M., Bhattacharya, B., Bishop, M. T., & Chen, G. Z. (2018). Development of the Fray-Farthing-Chen Cambridge Process: towards the sustainable production of titanium and its alloys. JOM Journal of the Minerals, Metals and Materials Society, 70(2), https://doi.org/10.1007/s11837-017-2664-4

The Kroll process has been employed for titanium extraction since the 1950s. It is a labour and energy intensive multi-step semi-batch process. The post-extraction processes for making the raw titanium into alloys and products are also excessive, inc... Read More about Development of the Fray-Farthing-Chen Cambridge Process: towards the sustainable production of titanium and its alloys.

Oxidation Decomposition Mechanism of Fluoroethylene Carbonate-Based Electrolytes for High-Voltage Lithium Ion Batteries: A DFT Calculation and Experimental Study (2017)
Journal Article
Xia, L., Tang, B., Yao, L., Wang, K., Cheris, A., Pan, Y., …Liu, Z. (2017). Oxidation Decomposition Mechanism of Fluoroethylene Carbonate-Based Electrolytes for High-Voltage Lithium Ion Batteries: A DFT Calculation and Experimental Study. ChemistrySelect, 2(24), 7353-7361. https://doi.org/10.1002/slct.201700938

© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The oxidative decomposition mechanism of fluoroethylene carbonate (FEC) used in high-voltage batteries is investigated by using density functional theory (DFT). Radical cation FEC•+ is formed from F... Read More about Oxidation Decomposition Mechanism of Fluoroethylene Carbonate-Based Electrolytes for High-Voltage Lithium Ion Batteries: A DFT Calculation and Experimental Study.

Highly Efficient Sulfonic/Carboxylic Dual-Acid Synergistic Catalysis for Esterification Enabled by Sulfur-Rich Graphene Oxide (2017)
Journal Article
Zhang, H., Luo, X., Shi, K., Wu, T., He, F., Zhou, S., …Peng, C. (2017). Highly Efficient Sulfonic/Carboxylic Dual-Acid Synergistic Catalysis for Esterification Enabled by Sulfur-Rich Graphene Oxide. ChemSusChem, 10(17), 3352-3357. https://doi.org/10.1002/cssc.201700950

A new sulfonic/carboxylic dual-acid catalyst based on sulfur-rich graphene oxide (GO-S) was readily prepared and used as a highly efficient and reusable solid acid catalyst toward the esterification of oleic acid with methanol for biodiesel productio... Read More about Highly Efficient Sulfonic/Carboxylic Dual-Acid Synergistic Catalysis for Esterification Enabled by Sulfur-Rich Graphene Oxide.

Mechanisms and Designs of Asymmetrical Electrochemical Capacitors (2017)
Journal Article
Akinwolemiwa, B., Wei, C., & Chen, G. Z. (2017). Mechanisms and Designs of Asymmetrical Electrochemical Capacitors. Electrochimica Acta, 247, 344-357. https://doi.org/10.1016/j.electacta.2017.06.088

© 2017 Elsevier Ltd Different charge storage mechanisms in electrochemical energy storage devices are reviewed, including non-Faradaic capacitive, Faradaic capacitive, Faradaic non-capacitive, and their combinations. Specifically, Faradaic capacitive... Read More about Mechanisms and Designs of Asymmetrical Electrochemical Capacitors.

Magnesia-stabilised zirconia solid electrolyte assisted electrochemical investigation of iron ions in the SiO2-CaO-MgO-Al2O3 molten slag at 1723 K (2017)
Journal Article
Gao, Y., Yang, C., Zhang, C., Qin, Q., & Chen, G. Z. (2017). Magnesia-stabilised zirconia solid electrolyte assisted electrochemical investigation of iron ions in the SiO2-CaO-MgO-Al2O3 molten slag at 1723 K. Physical Chemistry Chemical Physics, 19(24), 15876-15890. https://doi.org/10.1039/C7CP01945A

Production of metallic iron through molten oxide electrolysis using inert electrodes is an alternative route for fast ironmaking without CO2 emissions. The fact that many inorganic oxides melt at ultrahigh temperatures (>1500 K) challenges convention... Read More about Magnesia-stabilised zirconia solid electrolyte assisted electrochemical investigation of iron ions in the SiO2-CaO-MgO-Al2O3 molten slag at 1723 K.

Synthesis and applications of MOF-derived porous nanostructures (2017)
Journal Article
Yap, M. H., Fow, K. L., & Chen, G. Z. (2017). Synthesis and applications of MOF-derived porous nanostructures. Green Energy and Environment, 2(3), 218-245. https://doi.org/10.1016/j.gee.2017.05.003

Metal organic frameworks (MOFs) represent a class of porous material which is formed by strong bonds between metal ions and organic linkers. By careful selection of constituents, MOFs can exhibit very high surface area, large pore volume, and excelle... Read More about Synthesis and applications of MOF-derived porous nanostructures.

Conducting Polymer Nanocomposite-Based Supercapacitors (2016)
Book Chapter
Liew, S. Y., Walsh, D. A., & Chen, G. Z. (2016). Conducting Polymer Nanocomposite-Based Supercapacitors. In V. Kumar, S. Kalia, & H. C. Swart (Eds.), Conducting polymer hybrids (269-304). Springer International Publishing. https://doi.org/10.1007/978-3-319-46458-9_9

The use of nanocomposites of electronically-conducting polymers for supercapacitors has increased significantly over the past years, due to their high capacitances and abilities to withstand many charge-discharge cycles. We have recently been investi... Read More about Conducting Polymer Nanocomposite-Based Supercapacitors.

Supercapacitor and supercapattery as emerging electrochemical energy stores (2016)
Journal Article
Chen, G. Z. (in press). Supercapacitor and supercapattery as emerging electrochemical energy stores. International Materials Reviews, 62(4), https://doi.org/10.1080/09506608.2016.1240914

This article reviews critically selected recent literature on electrochemical energy storage (EES) technologies, focusing on supercapacitor and also supercapattery which is a generic term for various hybrid devices combining the merits of rechargeabl... Read More about Supercapacitor and supercapattery as emerging electrochemical energy stores.

Polypyrrole/TiO2 nanotube arrays with coaxial heterogeneous structure as sulfur hosts for lithium sulfur batteries (2016)
Journal Article
Zhao, Y., Zhu, W., Chen, G. Z., & Cairns, E. J. (2016). Polypyrrole/TiO2 nanotube arrays with coaxial heterogeneous structure as sulfur hosts for lithium sulfur batteries. Journal of Power Sources, 327, 447-456. https://doi.org/10.1016/j.jpowsour.2016.07.082

The lithium-sulfur cell has shown great prospects for future energy conversion and storage systems due to the high theoretical specific capacity of sulfur, 1675 mAh g?1. However, it has been hindered by rapid capacity decay and low energy efficiency.... Read More about Polypyrrole/TiO2 nanotube arrays with coaxial heterogeneous structure as sulfur hosts for lithium sulfur batteries.

Cuprous oxide/titanium dioxide nanotube-array with coaxial heterogeneous structure synthesized by multiple-cycle chemical adsorption plus reduction method (2016)
Journal Article
Zhu, W., Chong, B., Qin, K., Guan, L., Hou, X., & Chen, G. Z. (2016). Cuprous oxide/titanium dioxide nanotube-array with coaxial heterogeneous structure synthesized by multiple-cycle chemical adsorption plus reduction method. RSC Advances, 6(64), 59160-59168. https://doi.org/10.1039/C6RA06893F

We report the formation and characterization of Cuprous oxide/Titanium dioxide (Cu2O/TiO2) nanotube-array coaxial heterogeneous structure, which is supposed to have potential applications in photo-induced water decomposition and organic pollutant deg... Read More about Cuprous oxide/titanium dioxide nanotube-array with coaxial heterogeneous structure synthesized by multiple-cycle chemical adsorption plus reduction method.

Nitrogen-doped graphene guided formation of monodisperse microspheres of LiFePO4 nanoplates as the positive electrode material of lithium-ion batteries (2016)
Journal Article
Zhou, Y., Lu, J., Deng, C., Zhu, H., Chen, G. Z., Zhang, S., & Tian, X. (2016). Nitrogen-doped graphene guided formation of monodisperse microspheres of LiFePO4 nanoplates as the positive electrode material of lithium-ion batteries. Journal of Materials Chemistry A, 4(31), 12065-12072. https://doi.org/10.1039/C6TA03440C

Three-dimensional porous composite microspheres of LiFePO4 and nitrogen doped graphene have been synthesized by a solvothermal process coupled with subsequent calcination. The morphologies and microstructures of the composites are investigated by sca... Read More about Nitrogen-doped graphene guided formation of monodisperse microspheres of LiFePO4 nanoplates as the positive electrode material of lithium-ion batteries.

Redox electrode materials for supercapatteries (2016)
Journal Article
Yu, L., & Chen, G. Z. (2016). Redox electrode materials for supercapatteries. Journal of Power Sources, 326, 604-612. https://doi.org/10.1016/j.jpowsour.2016.04.095

© 2016 Elsevier B.V. Redox electrode materials, including transition metal oxides and electronically conducting polymers, are capable of faradaic charge transfer reactions, and play important roles in most electrochemical energy storage devices, such... Read More about Redox electrode materials for supercapatteries.