物理化学学报 >> 1994, Vol. 10 >> Issue (04): 376-380.doi: 10.3866/PKU.WHXB19940418

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氧化铁超微粒的光电化学特性

杨迈之, 李会铭, 蔡生民, 纪拥军   

  1. 北京大学化学系，北京 100871
  • 收稿日期:1992-07-31 修回日期:1993-04-02 发布日期:1994-04-15
  • 通讯作者:

Photoelectrochemical Properties of Iron Oxide Ultrafine Particles

Yang Mai-Zhi, Li Hui-Ming, Cai Sheng-Min, Ji Yong-Jun   

  1. Department of Chemistry, Peking University, Beijing 100871
  • Received:1992-07-31 Revised:1993-04-02 Published:1994-04-15
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关键词: 超微粒, 氧化铁, 光电流

Abstract:

From the FeCl_3 solutions of different concentrations, the polycrystalline iron oxide ultrthee particles of different sizes were obtained through hydrolysis. The results of their UV-visible spectroscopy eambit the "size quatization effects". In an electrolyte, the dependence of the photocurrent-potential relations on particle size of the dispersed iron oxide particles or the adsorbed iron oxide particles on Pt electrode and redox couple are described and discusscd.

Key words: Ultrafine particle, Photocurrent, Irion oxide