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Ceria/cobalt borate hybrids as efficient electrocatalysts for water oxidation under neutral conditions

Zhou, Xuemei, Guo, Sijia, Cai, Qiran and Huang, Shaoming 2019, Ceria/cobalt borate hybrids as efficient electrocatalysts for water oxidation under neutral conditions, Nanoscale Advances, vol. 1, no. 9, pp. 3686-3692, doi: 10.1039/c9na00356h.

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Title Ceria/cobalt borate hybrids as efficient electrocatalysts for water oxidation under neutral conditions
Author(s) Zhou, Xuemei
Guo, Sijia
Cai, Qiran
Huang, Shaoming
Journal name Nanoscale Advances
Volume number 1
Issue number 9
Start page 3686
End page 3692
Total pages 7
Publisher Royal Society of Chemistry
Place of publication London, Eng.
Publication date 2019-01-01
ISSN 2516-0230
Summary © 2019 The Royal Society of Chemistry. Oxygen evolution reaction (OER) catalysts are of importance for electrochemical water splitting and fuel generation. Despite enormous efforts, the design and development of OER catalysts with high catalytic activities under neutral conditions are highly desired but still remain a great challenge. Herein, we report a room temperature chemical route to prepare xceria/cobalt borate (xCeO2/Co-Bi) hybrids as efficient OER catalysts by tuning the molar ratio of Ce/Co (x represents the amount of CeO2). The optimised catalyst (20CeO2/Co-Bi hybrid) was found to exhibit remarkable OER catalytic activity with an overpotential of 453 mV at a current density of 10 mA cm-2, Tafel slope of 120 mV dec-1 and long-term stability in neutral medium due to its good conductivity, mass transportation and strong synergetic coupling effects, showing the potential of Co-based electrochemical materials for practical application in energy storage devices.
Language eng
DOI 10.1039/c9na00356h
Indigenous content off
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30133604

Document type: Journal Article
Collections: Open Access Collection
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.