高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (10): 2156.doi: 10.7503/cjcu20190251

• 物理化学 • 上一篇    下一篇

“三明治夹心”型Ni-P@Ni-B/Ni电极的制备及高效全pH下的催化制氢性能

王晨峰1,徐秋雨1,王临才1,张瑞琦3,潘欣欣3,王景伟1,*(),郝伟举2,*()   

  1. 1. 上海第二工业大学上海电子废弃物资源化协同创新中心, 上海 201209
    2. 上海理工大学理学院, 上海200093
    3. 复旦大学材料科学系, 上海 200433
  • 收稿日期:2019-04-30 出版日期:2019-10-10 发布日期:2019-10-16
  • 通讯作者: 王景伟,郝伟举 E-mail:jwwang@sspu.edu.cn;wj_hao@fudan.edu.cn
  • 基金资助:
    上海第二工业大学重点项目(No.XXKZD1602);国家自然科学基金(Nos.51201035);国家自然科学基金(Nos.51276053);中国博士后科学基金(No.KLH2021056);上海第二工业大学研究生项目基金(No.EGD19YJ0023)

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)

摘要:

通过化学镀法制备了具有“三明治夹心”结构的Ni-P@Ni-B/Ni催化电极. 该催化材料为直径1 μm左右的微球. 电化学性能测试结果表明, 在电流密度为10 mA/cm 2时, 其在0.5 mol/L PBS缓冲液(pH=7)中的过电位仅为287 mV, 在此电位下连续工作24 h后, 电流密度仅衰减了7.6%. 同时Ni-P@Ni-B/Ni在酸性(0.5 mol/L H2SO4)和碱性(1 mol/L KOH)条件下也具有优异的析氢反应催化活性, 达到相同电流密度时过电位分别为199和79 mV. 该工作为全pH环境下高效电解水制氢提供了新思路.

关键词: 电解水, 化学镀, "三明治"结构, pH梯度, 析氢反应

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

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