Acta Chimica Sinica ›› 1998, Vol. 56 ›› Issue (6): 564-569. Previous Articles     Next Articles

Original Articles

贮氢合金表面分析和金属氢化物电极电催化活性

陈卫祥;唐致远;陈长聘   

  1. 浙江大学材料科学与工程学系;天津大学应用化学系
  • 发布日期:1998-06-15

Surface analysis for the hydrogen storage alloy and electrocatalytic activity of MH electrodes

CHEN WEIXIANG;TANG ZHIYUAN;CHEN CHANGPING   

  • Published:1998-06-15

The morphology and surface composition of the hydrogen storage alloy are important factors that affect the performances of metal hydride (MH) electrodes. The performances of MH eelctrodes are effectively improved by the surface modification. The morphology and composition of the treated alloys were analyzed by XPS, ICP and BET. The effect of the chemical reducingtreatment on the electrocatalytic activity of MH electrodes was discussed. It was found that the exchange current density of MH electrode increased markedly and the activation energy of electrode reaction decreased.

Key words: HYDRIDES, ACTIVATION ENERGY, ELECTRO-CATALYSIS, ELECTRODE REACTION, CATALYTIC BEHAVIOUR, ADJUSTER

CLC Number: