中国物理B ›› 2018, Vol. 27 ›› Issue (6): 68103-068103.doi: 10.1088/1674-1056/27/6/068103

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

In situ growth of different numbers of gold nanoparticles on MoS2 with enhanced electrocatalytic activity for hydrogen evolution reaction

Xuan Zhao(赵宣), Da-Wei He(何大伟), Yong-Sheng Wang(王永生), Chen Fu(付晨)   

  1. Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Beijing 100044, China
  • 收稿日期:2017-10-26 修回日期:2018-03-13 出版日期:2018-06-05 发布日期:2018-06-05
  • 通讯作者: Xuan Zhao, Da-Wei He, Yong-Sheng Wang E-mail:983682235@qq.com;dwhe@bjtu.edu.cn;yshwang@bjtu.edu.cn
  • 基金资助:

    Project supported by the National Basic Research Program,China (Grant Nos.2016YFA0202300 and 2016YFA0202302),the National Natural Science Foundation of China (Grant Nos.61527817,61335006,and 61378073),and the Beijing Municipal Science and Technology Committee,China (Grant No.Z151100003315006).

In situ growth of different numbers of gold nanoparticles on MoS2 with enhanced electrocatalytic activity for hydrogen evolution reaction

Xuan Zhao(赵宣), Da-Wei He(何大伟), Yong-Sheng Wang(王永生), Chen Fu(付晨)   

  1. Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Beijing 100044, China
  • Received:2017-10-26 Revised:2018-03-13 Online:2018-06-05 Published:2018-06-05
  • Contact: Xuan Zhao, Da-Wei He, Yong-Sheng Wang E-mail:983682235@qq.com;dwhe@bjtu.edu.cn;yshwang@bjtu.edu.cn
  • Supported by:

    Project supported by the National Basic Research Program,China (Grant Nos.2016YFA0202300 and 2016YFA0202302),the National Natural Science Foundation of China (Grant Nos.61527817,61335006,and 61378073),and the Beijing Municipal Science and Technology Committee,China (Grant No.Z151100003315006).

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摘要：

Producing hydrogen through a hydrogen evolution reaction (HER) by splitting water at the suitable overpotential is a great alternative to solving the problems of environmental pollution and the energy crisis. Molybdenum sulfide (MoS2) has attracted extensive attention as one of the most promising catalytic materials for HER. In this work, we design a facile method to in situ grow gold nanoparticles (AuNPs) on MoS2. Different numbers of AuNPs with MoS2 are used to find the best catalytic activity. Due to the larger active surface area and higher conductivity of the Au-MoS2 composites, all the Au-MoS2 composites exhibit more enhanced HER electroactivity than pure MoS2. In brief, the new material architecture exhibits optimized HER activity with a low onset overpotential of 0.12 V, low Tafel slope of 0.163 V·dec-1, and an excellent stability in acidic solution.

关键词: MoS2, AuNPs, hydrogen evolution reaction, electrocatalysts

Abstract:

Producing hydrogen through a hydrogen evolution reaction (HER) by splitting water at the suitable overpotential is a great alternative to solving the problems of environmental pollution and the energy crisis. Molybdenum sulfide (MoS2) has attracted extensive attention as one of the most promising catalytic materials for HER. In this work, we design a facile method to in situ grow gold nanoparticles (AuNPs) on MoS2. Different numbers of AuNPs with MoS2 are used to find the best catalytic activity. Due to the larger active surface area and higher conductivity of the Au-MoS2 composites, all the Au-MoS2 composites exhibit more enhanced HER electroactivity than pure MoS2. In brief, the new material architecture exhibits optimized HER activity with a low onset overpotential of 0.12 V, low Tafel slope of 0.163 V·dec-1, and an excellent stability in acidic solution.

Key words: MoS2, AuNPs, hydrogen evolution reaction, electrocatalysts

中图分类号:  (Nanocrystalline materials)

  • 81.07.Bc
81.10.Dn (Growth from solutions) 81.16.Dn (Self-assembly) 82.30.Rs (Hydrogen bonding, hydrophilic effects)