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Fabrication of MoS2 with Dual Defects of O-Doping and S-Vacancies for High-Efficiency Hydrogen Production

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Abstract

Developing excellent electrocatalysts is a significant step in accelerating the widespread implementation of the electrochemical hydrogen evolution reaction (HER). MoS2 is one of the promising alternatives to platinum-based catalysts, while its HER activity is far from Pt due to the lack of active sites. It is urgent to develop a novel strategy to activate the basal planes of MoS2 for enhancing the HER activity. Herein, a facile hydrothermal method with a low-temperature H2O2 etching method is developed to fabricate MoS2 with O-doped and S-vacancy dual defects. The dual defects MoS2 nanosheet demonstrates remarkable hydrogen evolution reaction (HER) activity, achieving 10 mA cm−2 with a small overpotential of around 143 mV in 0.5 M H2SO4.

Graphical Abstract

Construct dual-defect MoS2 via a facile hydrothermal method and mild H2O2 etching process.

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Funding

This article received support from key projects of the Anhui Provincial Department of Education, China (Grant No. KJ2021ZD0044), the University Natural Science Research Project of Anhui Province (KJ2021A0380), and the Anhui Provincial Natural Science Foundation (1908085QE179, 2208085ME110).

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Authors and Affiliations

  1. School of Energy and Environment, Anhui University of Technology, Ma’anshan, Anhui, 243002, People’s Republic of China

    Hongyu Zhao, Hao Zhang, Ruoyu Huang, Jianmin Wang, Jiajia Cai, Jing Hu, Zhijie Chen, Yongtao Li & Haijin Li

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  1. Hongyu Zhao
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  2. Hao Zhang
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  3. Ruoyu Huang
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  4. Jianmin Wang
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  7. Zhijie Chen
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Contributions

Jianmin Wang: conceptualization, methodology, visualization, formal analysis, writing – original draft, investigation, data curation. Hongyu Zhao and Hao Zhang: software, visualization. Ruoyu Huang: investigation, data curation. Jiajia Cai: formal analysis.Jing Hu: formal analysis, resources. Zhijie Chen: formal analysis. Yongtao Lig: writing – review & editing, funding acquisition, supervision. Haijin Li: writing – review & editing, funding acquisition, supervision, project administration.

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Correspondence to Jianmin Wang or Haijin Li.

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Zhao, H., Zhang, H., Huang, R. et al. Fabrication of MoS2 with Dual Defects of O-Doping and S-Vacancies for High-Efficiency Hydrogen Production. Electrocatalysis 15, 20–28 (2024). https://doi.org/10.1007/s12678-023-00850-x

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