Composite clusters: Co5.7Ni2.3W12O42(OH)4@fluoro-graphdiyne as a stable electrode for sustained electrochemical oxygen evolution under high current conditions

Hao Sun; Xiaomei Xu; Chaojun Jing; Wenhui Shang; Yongchun Wang; Muling Zeng; Zhiyu Jia

doi:10.1039/D1QM00896J

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Composite clusters: Co_5.7Ni_2.3W₁₂O₄₂(OH)₄@fluoro-graphdiyne as a stable electrode for sustained electrochemical oxygen evolution under high current conditions†

Hao Sun,^a Xiaomei Xu,^a Chaojun Jing,

*^a Wenhui Shang,^a Yongchun Wang,^a Muling Zeng*^b and Zhiyu Jia

*^a

Author affiliations

* Corresponding authors

^a MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
E-mail: jzy@bit.edu.cn, jingcj@bit.edu.cn

^b School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P. R. China
E-mail: mulingzeng@163.com

Abstract

A composite cluster composed of Dexter–Silverton structure polyoxometalates (POMs) and porous fluoro-graphdiyne (FGDY) was synthesized and applied for the electrochemical oxygen evolution reaction (OER). Compared with the original POMs and FGDY, the composite cluster Co_5.7Ni_2.3W₁₂O₄₂(OH)₄@FGDY demonstrates superior performance and stability for the electrochemical OER. The composite cluster exhibited high performance for the OER with low potentials and a small Tafel slope. High catalytic activity could be obtained at a high current density. Co_5.7Ni_2.3W₁₂O₄₂(OH)₄@FGDY exhibits excellent catalytic performance and long stability due to its strong electron-transfer ability in the system, higher conductivity, and structural advantage of pores in FGDY. This would open access and guide us to synthesize novel composite clusters based on polyoxometalates and graphdiyne.

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Article information

DOI: https://doi.org/10.1039/D1QM00896J
Article type: Research Article
Submitted: 20 Jun 2021
Accepted: 28 Aug 2021
First published: 20 Sep 2021

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Mater. Chem. Front., 2021,5, 7666-7674

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Composite clusters: Co_5.7Ni_2.3W₁₂O₄₂(OH)₄@fluoro-graphdiyne as a stable electrode for sustained electrochemical oxygen evolution under high current conditions

H. Sun, X. Xu, C. Jing, W. Shang, Y. Wang, M. Zeng and Z. Jia, Mater. Chem. Front., 2021, 5, 7666 DOI: 10.1039/D1QM00896J

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