高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (10): 1124.

• 研究快报 • 上一篇    下一篇

经热扩散处理的注镍钛电极的析氢反应研究

张季爽, 王蓉晖, 吕瑶姣, 杨进全, 冯汉明   

  1. 湖南大学化学化工系
  • 收稿日期:1990-05-09 出版日期:1990-10-24 发布日期:1990-10-24
  • 通讯作者: 张季爽, 邮编: 410082
  • 基金资助:

    国家自然科学基金;中国科学院上海冶金研究所离子束开放实验室基金

Studies on Hydrogen Evolution at Thermodiffusion-Treated Nickel-Implanted Titanium Electrodes

Zhang Jishuang, Wang Ronghui, Lu Yaojiao, Yang Jinquan, Feng Hanming   

  1. Department of Chemistry and Chemical Engineering, Hunan University, Changsha
  • Received:1990-05-09 Online:1990-10-24 Published:1990-10-24

PDF (PC)

被引次数

2

摘要： 将高能离子注入电极表面可引入催化活性元素,进而能形成大量的活性中心,提高催化活性[1～3],作者将镍离子注入钛电极,结果使析氢过电位降低245mV,比未注镍的钛电极的活性高得多。实验表明,电极的催化活性随表面镍浓度的增加而提高。

关键词: 离子注入, 热扩散, 电催化

Abstract: Ni-implanted Ti electrodes were treated by thermodiffusion in higher vacuum for 1 h at the temperature from 100 to 700℃, and the hydrogen evolution reaction was then studied at the electrodes in the solution of 0. 856 mol/L NaCl plus 0. 01 mol/L HCl. Two orders of magnitude increases in exchanging current density (io) were recorded for the .thermodif fusion-treated electrodes by comparison with the untreated. The effect is attributed to the increase of nickel concentration on the electrode surface.

Key words: Ion implant, Thermodiffusion, Electrocatalysis

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