物理化学学报 >> 1999, Vol. 15 >> Issue (08): 742-746.doi: 10.3866/PKU.WHXB19990814

研究简报 上一篇    下一篇

Ni-W-WC复合电极在碱性介质中的电催化析氢

肖秀峰, 刘榕芳, 朱则善   

  1. 福建师范大学化学系,福州 350007
  • 收稿日期:1998-09-04 修回日期:1999-01-11 发布日期:1999-08-15
  • 通讯作者: 肖秀峰

Ni-W-WC Composite Coating Electrode for Hydrogen Evolution in Alkaline Solution

Xiao Xiu-Feng, Liu Rong-Fang, Zhu Ze-Shan   

  1. Department of Chemistry,Fujian Teacher's University,Fujian 350007
  • Received:1998-09-04 Revised:1999-01-11 Published:1999-08-15
  • Contact: Xiao Xiu-Feng

关键词: 复合电极, 电催化, 析氢

Abstract:

The Ni-W-WC composite-coating electrode was prepared by electrolytic composite-deposition. The characterization for the hydrogen evolution reaction (HER) was compared in 7 mol• L -1 KOH solution by steady-state polarization and AC impedance technique. The results show that the composite-coating electrode is catalytically more active than Ni-W electrode. The electro- catalytic activities of the composite-coating electrode are attributed to the increase in the real surface areas and the decrease in the standard free energy of activation. The stability test of the composite-coating electrode shows excellent stability during long-term continuous electrolysis and good resistance against frequent power interruption on this electrode.

Key words: Composite electrode, Electroctalysis, Hydrogen evolution