高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (7): 1575-1581.doi: 10.7503/cjcu20200161

• 物理化学 • 上一篇    下一篇

磷化镍/氮硫双掺杂石墨烯复合材料的制备及电催化析氢性能

赵国庆,袁钊,王连,郭卓*()   

  1. 沈阳化工大学材料科学与工程学院, 沈阳 110142
  • 收稿日期:2020-03-25 出版日期:2020-07-10 发布日期:2020-05-09
  • 通讯作者: 郭卓 E-mail:guozhuochina@syuct.edu.cn
  • 基金资助:
    辽宁省科技厅自然科学基金(2019-ZD-0084);辽宁省科技厅自然科学基金(XXLJ2019008)

Preparation of Ni2P/N, S co-Doped Reduced Graphene Oxide Composites and Their Electrocatalytic Properties for Hydrogen Evolution

ZHAO Guoqing,YUAN Zhao,WANG Lian,GUO Zhuo*()   

  1. Department of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
  • Received:2020-03-25 Online:2020-07-10 Published:2020-05-09
  • Contact: Zhuo GUO E-mail:guozhuochina@syuct.edu.cn
  • Supported by:
    † Natural Science Foundation of Liaoning Provincial Science and Technology Department, China(2019-ZD-0084);Natural Science Foundation of Liaoning Provincial Science and Technology Department, China(XXLJ2019008)

摘要:

采用水热法合成了具有高活性的磷化镍纳米晶(Ni2P), 并合成了氮、 硫共掺杂石墨烯负载磷化镍纳米催化剂(Ni2P/NSRGO). 对该催化剂的结构和形貌进行了表征, 并研究其电催化析氢性能. 电化学测试结果表明, Ni2P/NSRGO复合电催化剂的析氢性能优于Ni2P/RGO催化剂, 具有较小的Tafel斜率(35 mV/dec)、 较低的过电位(η10=140 mV)和良好的稳定性.

关键词: 析氢反应, 电催化剂, 磷化镍纳米晶, 氮硫双掺杂

Abstract:

Developing new type of electrolyzed water catalysts is very important. In this work, nickel phosphide nanocrystals supported on N, S co-doped reduced graphene oxide(Ni2P/NSRGO) as a high activity catalyst was synthesized by the simple hydrothermal process. The graphene can anchor nickel phosphide and improve catalytic performance. The results of electrochemical test showed that the Ni2P/NSRGO composite electrocatalyst showed better hydrogen evolution performance than Ni2P/NRGO and Ni2P/RGO catalysts, indicating the addition of N and S has a positive effect on the improvement of hydrogen evolution performance. The Ni2P/NSRGO nanocrystals catalyst shows excellent performance with a small Tafel slope of 35 mV/dec, longterm durability and a low overpotential(η10=140 mV) in 0.5 mol/L H2SO4 for the hydrogen evolution reaction(HER).

Key words: Hydrogen evolution reaction, Electrocatalyst, Nickel phosphide nanocrystal, Nitrogen-sulfur double-doping

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