物理化学学报 >> 1985, Vol. 1 >> Issue (01): 104-108.doi: 10.3866/PKU.WHXB19850113

研究简报 上一篇    

在双层金属修饰的n+/p-Si光阳极上的催化析氧

王士勋; 李国铮; 徐国宪   

  1. 山东大学化学系
  • 收稿日期:1984-06-16 修回日期:1984-10-10 发布日期:1985-02-15

CATALYTIC OXYGEN EVOLUTION AT n+/p-Si PHOTOANODE MODIFIED BY DOUBLE METAL FILMS

Wang Shixun; Li Guozheng; Xu Guoxian   

  1. 山东大学化学系
  • Received:1984-06-16 Revised:1984-10-10 Published:1985-02-15

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Abstract:

The modified n~+/p-Si photoanode had been prepared by ion sputtering first with thickness of 4.0 nm platinum and then by electroplating a thin W-Ni alloy film. It was found that when this photoanode was illuminated with anodic bias (at 1.0 V vs. 1N HgO electrode) under cyclic voltammetric conditions, the photocurrent density might reach 46.4 mA cm~(-2). It was clear that W-Ni film appeared an excellent catalytic action for oxygen evolution. The surface of n~+/p-Si photoanode modified by double metal films had also been studied using methods of scanning electron microscopy and x-ray photoelectron spectro-scopy.