Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (10): 2156.doi: 10.7503/cjcu20190251

• Physical Chemistry • Previous Articles     Next Articles

Preparation of a Sandwich-like Ni-P@Ni-B/Ni Catalytic Electrode for pH-Universal Hydrogen Evolution Reaction

WANG Chenfeng1,XU Qiuyu1,WANG Lincai1,ZHANG Ruiqi3,PAN Xinxin3,WANG Jingwei1,*(),HAO Weiju2,*()   

  1. 1. Shanghai Collaborative Innovation Centre for WEEE Recycling, Shanghai Polytechnic University, Shanghai 201209, China
    2. College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
    3. Department of Material Science, Fudan University, Shanghai 200433, China
  • Received:2019-04-30 Online:2019-10-10 Published:2019-10-16
  • Contact: WANG Jingwei,HAO Weiju E-mail:jwwang@sspu.edu.cn;wj_hao@fudan.edu.cn
  • Supported by:
    † Supported by the Key Project of Shanghai Polytechnic University, China(No.XXKZD1602);the National Natural Science Foundation of China(Nos.51201035);the National Natural Science Foundation of China(Nos.51276053);the Postdoctoral Science Foundation of China(No.KLH2021056);the Shanghai Polytechnic University Graduate Program Foundation, China.(No.EGD19YJ0023)

Abstract:

A sandwich structure Ni-P@Ni-B/Ni catalytic electrode was prepared by electroless plating. The Ni-P@Ni-B catalytic material has an amorphous spherical structure with a diameter of 1μm. When the current density of Ni-P@Ni-B/Ni is 10 mA/cm 2, the overpotential is only 287 mV in 0.5 mol/L phosphate buffer saline(PBS). After operating for 24 h at a overpotential of 287 mV, the current density of Ni-P@Ni-B/Ni only attenuated by 7.6%. At the same time, the Ni-P@Ni-B/Ni electrode also has an excellent catalytic activity for hydrogen evolution reaction both in acidic and alkaline conditions, it achieves a cathodic current density of 10 mA/cm 2 at overpotentials of 199 and 79 mV in 0.5 mol/L H2SO4 and 1 mol/L KOH, respectively.

Key words: Electrohydrolysis of water, Electroless plating, Sandwich structure, pH-Gradient, Hydrogen evolution reaction

CLC Number: 

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