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Cross-Linked CoMoO4/rGO Nanosheets as Oxygen Reduction Catalyst

Key Laboratory of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
School of Chemistry, The University of Glasgow, Galsgow G12 8QQ, UK
Authors to whom correspondence should be addressed.
Catalysts 2017, 7(12), 375;
Received: 23 November 2017 / Accepted: 28 November 2017 / Published: 4 December 2017
(This article belongs to the Special Issue Recent Advances in Polyoxometalate-Catalyzed Reactions)
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Development of inexpensive and robust electrocatalysts towards oxygen reduction reaction (ORR) is crucial for the cost-affordable manufacturing of metal-air batteries and fuel cells. Here we show that cross-linked CoMoO4 nanosheets and reduced graphene oxide (CoMoO4/rGO) can be integrated in a hybrid material under one-pot hydrothermal conditions, yielding a composite material with promising catalytic activity for oxygen reduction reaction (ORR). Cyclic voltammetry (CV) and linear sweep voltammetry (LSV) were used to investigate the efficiency of the fabricated CoMoO4/rGO catalyst towards ORR in alkaline conditions. The CoMoO4/rGO composite revealed the main reduction peak and onset potential centered at 0.78 and 0.89 V (vs. RHE), respectively. This study shows that the CoMoO4/rGO composite is a highly promising catalyst for the ORR under alkaline conditions, and potential noble metal replacement cathode in fuel cells and metal-air batteries. View Full-Text
Keywords: CoMoO4 nanosheets; reduced graphene oxide; hydrothermal reaction; oxygen reduction reaction; fuel cell CoMoO4 nanosheets; reduced graphene oxide; hydrothermal reaction; oxygen reduction reaction; fuel cell

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Fu, J.; Meng, J.-L.; Wei, M.-J.; Zang, H.-Y.; Tan, H.-Q.; Wang, Y.-H.; Miras, H.N.; Li, Y.-G. Cross-Linked CoMoO4/rGO Nanosheets as Oxygen Reduction Catalyst. Catalysts 2017, 7, 375.

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