Efficient seawater electrolysis for hydrogen production with a NiS2-stabilized 1T-MoS2 catalyst

Lianhui Wu; Haiying Wei; Hanxiao He; Yuwan Xiang; Shiyue Yin; Daying Guo; Guoyong Fang; Huile Jin; Xi’an Chen; Shun Wang

doi:10.1039/D6CC00810K

Efficient seawater electrolysis for hydrogen production with a NiS₂-stabilized 1T-MoS₂ catalyst

Lianhui Wu,^a Haiying Wei,^b Hanxiao He,^a Yuwan Xiang,^a Shiyue Yin,^a Daying Guo,

*^a Guoyong Fang,

^a Huile Jin,

^a Xi’an Chen

*^a and Shun Wang

^a

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* Corresponding authors

^a College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
E-mail: guody@wzu.edu.cn, xianchen@wzu.edu.cn

^b China Tobacco Jiangsu Industrial Co., Ltd, Nanjing, China

Abstract

A simple method to introduce NiS₂ into 1T phase MoS₂ to strengthen the Mo–H bonds during the seawater electrolysis, which improves the structural stability of the MoS₂ catalyst, is presented. 1TMoS₂–NiS₂/CC achieved an ultra-low overpotential and a Tafel slope of 45.9 mV dec⁻¹. The seawater electrolysis device only needs 1.67 V to achieve 100 mA cm⁻², and run continuously for 100 h.

Chemical Communications

Efficient seawater electrolysis for hydrogen production with a NiS₂-stabilized 1T-MoS₂ catalyst

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Efficient seawater electrolysis for hydrogen production with a NiS₂-stabilized 1T-MoS₂ catalyst

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