Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (12): 2774.doi: 10.7503/cjcu20200667

• Physical Chemistry • Previous Articles     Next Articles

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)

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)

CLC Number: 

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