Fine regulation of electron transfer in Ag@Co3O4 nanoparticles for boosting the oxygen evolution reaction

Zhe Li; Yi Feng; Xiuyao Lang; Wenjing Kang; Jing Mao; Gurong Shen; Hui Liu; Cunku Dong; Weichao Wang; Xiwen Du

doi:10.1039/D1CC02189C

Fine regulation of electron transfer in Ag@Co₃O₄ nanoparticles for boosting the oxygen evolution reaction†

Zhe Li,‡^a Yi Feng,‡^a Xiuyao Lang,^b Wenjing Kang,^a Jing Mao,^a Gurong Shen,^a Hui Liu,^a Cunku Dong,*^a Weichao Wang

*^b and Xiwen Du

*^ac

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* Corresponding authors

^a Institute of New Energy Materials, School of Materials Science and Engineering, Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, P. R. China
E-mail: xwdu@tju.edu.cn, ckdong@tju.edu.cn

^b Department of Electronics, Tianjin Key Laboratory of Photo-Electronic Thin Film Device and Technology, Nankai University, Tianjin, P. R. China
E-mail: weichaowang@nankai.edu.cn

^c Longyan University, Longyan, P. R. China

Abstract

In this study, a core–shell structure (Ag@Co₃O₄) was constructed to modify the valence state of cobalt cations precisely by continuously adjusting the shell thickness. There exists a volcano relationship between the valence state of Co sites and OER activity, and the lowest overpotential (212 mV@10 mA cm⁻²) has been obtained.

Chemical Communications

Fine regulation of electron transfer in Ag@Co₃O₄ nanoparticles for boosting the oxygen evolution reaction†

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Fine regulation of electron transfer in Ag@Co₃O₄ nanoparticles for boosting the oxygen evolution reaction

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Chemical Communications