Co3O4 nanobelt arrays assembled with ultrathin nanosheets as highly efficient and stable electrocatalysts for the chlorine evolution reaction

Xianglin Zhu; Peng Wang; Zeyan Wang; Yuanyuan Liu; Zhaoke Zheng; Qianqian Zhang; Xiaoyang Zhang; Ying Dai; Myung-Hwan Whangbo; Baibiao Huang

doi:10.1039/C8TA03689F

Co₃O₄ nanobelt arrays assembled with ultrathin nanosheets as highly efficient and stable electrocatalysts for the chlorine evolution reaction†

Xianglin Zhu,^a Peng Wang,

*^a Zeyan Wang,

^a Yuanyuan Liu,^a Zhaoke Zheng,^a Qianqian Zhang,^a Xiaoyang Zhang,^a Ying Dai,

^b Myung-Hwan Whangbo^ac and Baibiao Huang

*^a

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* Corresponding authors

^a State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, P. R. China
E-mail: pengwangicm@sdu.edu.cn, bbhuang@sdu.edu.cn

^b School of Physics, Shandong University, Jinan 250100, P. R. China

^c Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA

Abstract

The chlorine evolution reaction (CER) is an important electrochemical process in chemical industry, but commonly used CER electrocatalysts are based on scarce elements e.g. Ru and Ir. Thus, it is necessary to develop efficient electrocatalysts based on more abundant elements. Here, we report that Co₃O₄ nanobelt arrays (NBAs) assembled with ultrathin nanosheets which are less than 2.3 nm thick prepared on fluorine doped tin oxide (FTO) substrates are an example of such CER electrocatalysts. The Co₃O₄ NBA anode is better than RuO₂-based anodes in terms of CER activity and is far more stable than RuO₂-based anodes.

Journal of Materials Chemistry A

Co₃O₄ nanobelt arrays assembled with ultrathin nanosheets as highly efficient and stable electrocatalysts for the chlorine evolution reaction†

Abstract

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Co₃O₄ nanobelt arrays assembled with ultrathin nanosheets as highly efficient and stable electrocatalysts for the chlorine evolution reaction

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Journal of Materials Chemistry A