Electrochemical conversion of bulk platinum into platinum single-atom sites for the hydrogen evolution reaction

Zhiyuan Wang; Jia Yang; Jie Gan; Wenxing Chen; Fangyao Zhou; Xiao Zhou; Zhenqiang Yu; Junfa Zhu; Xuezhi Duan; Yuen Wu

doi:10.1039/D0TA02351E

Electrochemical conversion of bulk platinum into platinum single-atom sites for the hydrogen evolution reaction†

Zhiyuan Wang,‡^ab Jia Yang,‡^a Jie Gan,‡^c Wenxing Chen,^d Fangyao Zhou,^a Xiao Zhou,^a Zhenqiang Yu,

*^b Junfa Zhu,

^e Xuezhi Duan

*^c and Yuen Wu

*^a

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* Corresponding authors

^a Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
E-mail: yuenwu@ustc.edu.cn

^b School of Chemistry and Environmental Engineering, Institute of Low-dimensional Materials Genome Initiative, Shenzhen University, Shenzhen 518060, China
E-mail: zqyu@szu.edu.cn

^c State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

^d Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China

^e National Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei 230026, China

Abstract

Herein, we report a convenient and controllable electroplating strategy to fabricate single-atom site catalysts directly from bulk metals with the assistance of graphene oxide membrane (GOM) under mild and ambient conditions. With the regulation of the GOM, the diffusion rate and the concentration of metal ions around the working electrode are efficiently decreased; consequently, the growth of nuclei and aggregation of atoms are successfully prevented. The synthesized Pt-SAs/C not only exhibits an outstanding electrocatalytic activity towards the hydrogen evolution reaction (HER), but also an excellent photocatalytic activity for water splitting with CdS as the photosensitizer under visible-light irradiation. This work provides an efficient strategy for developing single-atom site catalysts towards hydrogen production.

This article is part of the themed collection: Journal of Materials Chemistry A HOT Papers

Journal of Materials Chemistry A

Electrochemical conversion of bulk platinum into platinum single-atom sites for the hydrogen evolution reaction†

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Electrochemical conversion of bulk platinum into platinum single-atom sites for the hydrogen evolution reaction

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