Acta Chim. Sinica ›› 2015, Vol. 73 ›› Issue (9): 877-885.DOI: 10.6023/A15030157 Previous Articles     Next Articles

Special Issue: 非碳基二维材料

Accounts

金箔上单层MoS2的控制生长及电催化析氢应用

史建平a,b, 马冬林b, 张艳锋a,b, 刘忠范b   

  1. a 北京大学工学院材料科学与工程系 北京 100871;
    b 北京大学化学与分子工程学院纳米化学研究中心 北京市低维碳材料科学与工程技术研究中心 北京 100871
  • 收稿日期:2015-03-06 出版日期:2015-09-15 发布日期:2015-07-09
  • 通讯作者: 张艳锋 E-mail:yanfengzhang@pku.edu.cn
  • 基金资助:

    项目受国家自然科学基金(Nos. 51222201, 51290272, 51472008, 51072004, 51121091, 51432002)和国家重点基础研究发展计划(Nos. 2011CB921903, 2012CB921404, 2012CB933404, 2013CB932603, 2011CB933003)资助.

Controllable Growth of MoS2 on Au Foils and Its Application in Hydrogen Evolution

Shi Jianpinga,b, Ma Donglinb, Zhang Yanfenga,b, Liu Zhongfanb   

  1. a Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871;
    b Center for Nanochemistry CNC, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871
  • Received:2015-03-06 Online:2015-09-15 Published:2015-07-09
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 51222201, 51290272, 51472008, 51072004, 51121091, 51432002) and the National Basic Research Program of China (Nos. 2011CB921903, 2012CB921404, 2012CB933404, 2013CB932603, 2011CB933003).

Controllable synthesis of monolayer MoS2 on metal substrates is the basic premise for exploring the intrinsic electronic structure, some novel physical properties, and engineering its application in hydrogen evolution reaction (HER). In recent years, we have been working on low-pressure chemical vapor deposition (LPCVD) growth of monolayer MoS2 on Au foils, with the domain size can be tuned from several hundred nanometers to dozens of microns. By introducing H2 as carrier gas, we have synthesized large domain monolayer MoS2 triangular flakes on Au foils, with the edge length approaching to ca. 81 μm. By using low-energy electron microscopy/diffraction (LEEM/LEED) method, the crystal orientations and domain boundaries of monolayer MoS2 flakes directly on Au foils are further on-site identified. Of particular interest, the nanosized MoS2 flakes on Au foils are proven to be excellent electrocatalysts for HER, featured by a rather low Tafel slope (ca. 61 mV/dec) and a relative high exchange current density (ca. 38.1 μA/cm2). In this review, we summarized controllable growth and on-site domain boundary imaging of monolayer MoS2 on Au foils and its application in HER together with a brief discussion on the future directions, challenges and opportunities in this research area.

Key words: molybdenum disulfide, Au foil, chemical vapor deposition, controllable growth, low-energy electron microscopy/diffraction, hydrogen evolution reaction