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

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

Xiaoliang Shen,^ab Mengna Zhang,^a M. Shire Sudi,^a Wei Zhao,

*^b Qi Wang,^a JinShen Ren,^a Long Zhao,

^a Aijian Wang

*^a and Weihua Zhu

*^a

Author affiliations

* Corresponding authors

^a School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
E-mail: wajujs@ujs.edu.cn, sayman@ujs.edu.cn

^b School of Energy & Power Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
E-mail: wzhao@ujs.edu.cn

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.

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Article information

DOI: https://doi.org/10.1039/D1CC05670K
Article type: Communication
Submitted: 07 Oct 2021
Accepted: 02 Nov 2021
First published: 05 Nov 2021

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Chem. Commun., 2021,57, 12516-12519

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

X. Shen, M. Zhang, M. S. Sudi, W. Zhao, Q. Wang, J. Ren, L. Zhao, A. Wang and W. Zhu, Chem. Commun., 2021, 57, 12516 DOI: 10.1039/D1CC05670K

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Chemical Communications