In situ coupling of a Co-Mo bimetallic sulfide derived from [CoMo 12 O 40 ] 6- clusters showing highly efficient electrocatalytic hydrogen evolution

The hydrogen evolution reaction (HER) is important for "green" hydrogen production from water electrolysis. Nowadays, there is an urgent need to construct highly efficient electrocatalysts to boost the HER and achieve hydrogen production. Herein, we present the preparation of a new composi...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2023-08, Vol.52 (31), p.10718-10724
Main Authors: Zhen, Qingfang, Pang, Haijun, Hu, Sumin, Jin, Zhongxin, Wu, Qiong, Ma, Huiyuan, Wang, Xinming, Yang, Guixin, Yu, Zhipeng
Format: Article
Language:English
Subjects:
Bimetals
Cobalt sulfide
Electrocatalysts
Electrodes
Electrolysis
Hydrogen evolution reactions
Hydrogen production
Molybdenum disulfide
Sulfurization
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Summary:The hydrogen evolution reaction (HER) is important for "green" hydrogen production from water electrolysis. Nowadays, there is an urgent need to construct highly efficient electrocatalysts to boost the HER and achieve hydrogen production. Herein, we present the preparation of a new composite Co-Mo bimetallic sulfide supported on carbon cloth (MoS /CoS /CC) a one-pot hydrothermal sulfurization strategy using (C H N ) [CoMo O ]·10H O (CoMo ) as a metal source and thiourea as a sulfur source. The obtained MoS /CoS /CC catalyst exhibited outstanding HER ability, with an overpotential of 69 mV when the current density is 10 mA cm in KOH solution, showing comparable performance with those of the advanced Pt/C electrodes tested under the same conditions. Additionally, the results of XRD after the catalytic reaction showed that the electrode had excellent stability in the electrolyte of 1.0 M KOH.
ISSN:1477-9226
1477-9234
DOI:10.1039/d3dt01802d