Synergistic optimization promoted overall water splitting of CoSe@NiSe2@MoS2 heterostructured composites

Xiaoliang Shen; Mengna Zhang; M Shire Sudi; Wei Zhao; Qi Wang; JinShen Ren; Long Zhao; Aijian Wang; Weihua Zhu

doi:10.1039/d1cc05670k

Synergistic optimization promoted overall water splitting of CoSe@NiSe₂@MoS₂ heterostructured composites

Chem Commun (Camb). 2021 Nov 23;57(93):12516-12519. doi: 10.1039/d1cc05670k.

Authors

Xiaoliang Shen^{1

2}, Mengna Zhang¹, M Shire Sudi¹, Wei Zhao², Qi Wang¹, JinShen Ren¹, Long Zhao¹, Aijian Wang¹, Weihua Zhu¹

Affiliations

¹ School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China. wajujs@ujs.edu.cn.
² School of Energy & Power Engineering, Jiangsu University, Zhenjiang 212013, P. R. China. wzhao@ujs.edu.cn.

PMID: 34751281
DOI: 10.1039/d1cc05670k

Abstract

Herein, the preparation of CoSe@NiSe₂@MoS₂ composites and the systematic investigation of their water splitting performance as a function of composition have been demonstrated. CoSe@NiSe₂@MoS₂-12 with the optimized composition exhibits a current density of 10 mA cm^-2 at overpotentials of 81 and 170 mV for HER and OER in alkaline conditions, respectively. The overall water splitting device built using CoSe@NiSe₂@MoS₂-12 exhibited a low voltage of 1.48 V at 10 mA cm^-2 due to the synergistic effects.