化工进展 ›› 2019, Vol. 38 ›› Issue (01): 278-291.DOI: 10.16085/j.issn.1000-6613.2018-1107

• 工业催化 • 上一篇    下一篇

电解水制氢MoS2催化剂研究与氢能技术展望

王培灿(),雷青,刘帅,王保国()   

  1. 清华大学化学工程系,北京 100084
  • 收稿日期:2018-05-29 修回日期:2018-11-02 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: 王保国
  • 作者简介:王培灿(1993—),男,博士研究生。E-mail:<email>wangpcleo@gmail.com</email>。|王保国,博士,教授,从事膜分离技术、储能科学与技术研究。E-mail:<email>bgwang@tsinghua.edu.cn</email>。
  • 基金资助:
    国家自然科学基金(21776154);国家高技术研究发展计划(2012AA051203);国家自然科学基金(21776154);国家高技术研究发展计划(2012AA051203)。

MoS2-based electrocatalysts for hydrogen evolution and the prospect of hydrogen energy technology

Peican WANG(),Qing LEI,Shuai LIU,Baoguo WANG()   

  1. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2018-05-29 Revised:2018-11-02 Online:2019-01-05 Published:2019-01-05
  • Contact: Baoguo WANG

摘要:

氢气具有质量轻、热值高、燃烧产物清洁等优点,被认为是理想的能源载体。氢气既能作为燃料电池的燃料,又能作为储能介质调节风能、太阳能发电系统的随机性、间歇性,正在成为未来能源的重要组成部分。为了促进电解水制氢技术与装备发展,研究高效电催化剂十分重要。本文围绕“粉末型”与“自支撑型”电催化剂结构特征,讨论基于二硫化钼(MoS2)的析氢电催化剂的研究现状,阐述了催化活性位点调控策略与提高导电性两条技术途径,并以析氢过电位和塔菲尔曲线斜率为依据,比较不同方法制备的二硫化钼电催化剂的催化活性。表明提高二硫化钼晶相稳定性、调节其电子结构和优化催化电极结构等方法,将进一步提高基于二硫化钼的析氢催化电极性能。

关键词: 氢, 电催化剂, 二硫化钼, 电解水, 制氢

Abstract:

Hydrogen is regarded as an ideal energy carrier for its light quality, high energy density and eco-friendly combustion emission. Hydrogen can be used as fuel for PEM fuel cells and energy storage media to regulate the energy output from wind turbine and solar power, therefore it is expected to play a crucial role in future energy system. In order to develop the technology and devices for water electrolysis, high efficient electrocatalysts are the key. We systematically introduce the recent progress in MoS2-based electrocatalysts for hydrogen evolution reaction (HER), categorize the electrocatalysts into powder-type and binder-free electrocatalysts, and discuss two methods of regulation of active sites and the improvement of electric conductivity. Different types of MoS2 and MoS2-based electrodes for HER were compared and evaluated using the overpotential and Tafel slopes, and the results demonstrate promising potential of MoS2 as HER electrocatalysts. For developing MoS2 HER electrocatalysts, it should further increase the stability of MoS2 crystal, regulate the electronic properties and optimize the electrode structure.

Key words: hydrogen, electrocatalyst, molybdenum disulfide, water-splitting, hydrogen production

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