高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (12): 2774-2780.doi: 10.7503/cjcu20200667

• 物理化学 • 上一篇    下一篇

无电沉积硼化镍材料对水氧化的电催化性能

姜媛媛1, 李伯语1, 逯一中1(), 吴同舜2, 韩冬雪2()   

  1. 1.济南大学材料科学与工程学院, 济南 250022
    2.广州大学分析科学技术研究中心, 化学化工学院, 广州 510006
  • 收稿日期:2020-09-09 出版日期:2020-12-10 发布日期:2020-12-09
  • 通讯作者: 逯一中 E-mail:mse_luyz@ujn.edu.cn;dxhan@gzhu.edu.cn
  • 作者简介:韩冬雪, 女, 博士, 教授, 主要从事光电敏感材料制备、 光电化学传感及分析仪器化设计方面的研究.E-mail: dxhan@gzhu.edu.cn
  • 基金资助:
    国家自然科学基金(21902062);山东省自然科学基金(ZR2019YQ10);泰山学者青年项目(tsqn201812080)

Oxygen Evolution Reaction Electrocatalytic Performance Analysis of Electroless Plated Ni-Bx

JIANG Yuanyuan1, LI Boyu1, LU Yizhong1(), WU Tongshun2, HAN Dongxue2()   

  1. 1.School of Materials Science and Engineering,University of Jinan,Jinan 250022,China
    2.Center for Advanced Analytical Science,c/o School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou 510006,China
  • Received:2020-09-09 Online:2020-12-10 Published:2020-12-09
  • Contact: LU Yizhong E-mail:mse_luyz@ujn.edu.cn;dxhan@gzhu.edu.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(21902062);the Natural Science Foundation of Shandong Province, China(ZR2019YQ10);the Young Taishan Scholars Program, China(tsqn201812080)

摘要:

通过无电沉积/化学镀的方法分别制得石墨烯(Graphene)、 镍网(Ni foam, NF)、 钛网(Ti mesh, TM)、 碳布(Carbon cloth, CC)负载的硼化镍材料. 其中在石墨烯基底上生长的硼化镍层由规则的纳米颗粒构成, 且均匀致密. 对几种材料在碱性条件下(1.0 mol/L KOH电解质中)的水氧化电催化性能进行了研究, 结果表明, 石墨烯基底上生长的硼化镍材料(NiBx/graphene)具有最佳的水氧化电催化性能. 电流密度达到10 mA/cm2时的过电位仅为277 mV, 相应的Tafel斜率为57 mV/dec. 对石墨烯负载的硼化镍材料进行烧结, 测得过电位为330 mV, 与未烧结的样品相比电催化活性下降. 该方法所制的石墨烯负载的硼化镍材料兼具高电催化活性和稳定性, 为低成本、 高效率的水氧化非贵金属电催化剂的制备提供了新思路.

关键词: 硼化镍, 石墨烯, 析氧反应, 电催化剂, 电解水

Abstract:

Transition metal borides are one of the most promising electrocatalysts in water splitting reaction for their high electrocatalytic performance and low cost. Through electroless plating method, nickel borides grown on graphene, nickel foam(NF), Ti mesh(TM) and carbon cloth(CC) were fabricated, in which graphene supported nickel borides exhibits homogeneous and dense nanoparticles structure. The oxygen evolution electrocatalytic performances of these materials are studied in alkaline solution(1.0 mol/L KOH). The results show that the nickel boride grown on graphene(NiBx/graphene) exhibits the best electrocatalytic performance for water oxidation. An overpotential of only 277 mV is needed to reach the current density of 10 mA/cm2, and the corresponding Tafel slope are 57 mV/dec. The annealed sample shows an overpotential of 330 mV, which means an activity decline compared to the unannealed one. The NiBx/graphene prepared by this facile method exhibits high electrocatalytic activity and stability, which provides new strategy for preparing high-performance and low-cost water oxidation electrocatalysts.

Key words: Nickel boride, Graphene, Oxygen evolution reaction, Electrocatalyst, Water splitting(Ed.: Y, K, S)

中图分类号: