Hydrogen evolution boosted by moderate Co3ZnC with current densities beyond 1000 mA cm-2

Xiaobo He; Yanling Zhao; Yuanchu Dong; Fengxiang Yin; Xin Lin; Ruilong Ma; Jiaqi Li

doi:10.1039/d2cc06042f

Hydrogen evolution boosted by moderate Co₃ZnC with current densities beyond 1000 mA cm^-2

Chem Commun (Camb). 2023 Jan 26;59(9):1197-1200. doi: 10.1039/d2cc06042f.

Authors

Xiaobo He¹, Yanling Zhao¹, Yuanchu Dong¹, Fengxiang Yin¹, Xin Lin², Ruilong Ma¹, Jiaqi Li¹

Affiliations

¹ Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China. yinfx@cczu.edu.cn.
² College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.

PMID: 36629149
DOI: 10.1039/d2cc06042f

Abstract

Co₃ZnC can efficiently boost the activity of Co@N, O co-doped carbons for hydrogen evolution. The results show that moderate Co₃ZnC plays key roles in achieving an appropriate weighted Co 3d band centre, enhancing charger transfer and thus optimizing the electrochemical active surface area. Thus, a low overpotential of ∼219 mV can drive a high current density of 1000 mA cm^-2 under the favourable condition of moderate Co₃ZnC.