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CoC2O4·2H2O derived Co3O4 nanorods array: a high-efficiency 1D electrocatalyst for alkaline oxygen evolution reaction

Abstract

Energy conversion and storage systems such as water splitting, metal-air batteries require high-performance and durable oxygen evolution reaction (OER) catalysts. Herein, we report the in-situ development of self-standing Co3O4 nanorods array on Co foil (Co3O4 NA/CF) as a 3D OER catalyst electrode. Such Co3O4 NA/CF only needs overpotential of 308 mV to drive a geometrical catalytic current density of 15 mA cm–2 in 1.0 M KOH, with good long-term electrochemical durability. Besides, this catalyst achieves a high turnover frequency of 0.646 mol O2 s–1 at overpotential of 410 mV.

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Publication details

The article was received on 02 Nov 2017, accepted on 11 Jan 2018 and first published on 11 Jan 2018


Article type: Communication
DOI: 10.1039/C7CC08423D
Citation: Chem. Commun., 2018, Accepted Manuscript
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    CoC2O4·2H2O derived Co3O4 nanorods array: a high-efficiency 1D electrocatalyst for alkaline oxygen evolution reaction

    Y. Wei, X. Ren, H. Ma, X. Sun, Y. Zhang, X. Kuang, T. Yan, H. Ju, D. Wu and Q. Wei, Chem. Commun., 2018, Accepted Manuscript , DOI: 10.1039/C7CC08423D

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