Acta Phys. -Chim. Sin. ›› 1994, Vol. 10 ›› Issue (04): 376-380.doi: 10.3866/PKU.WHXB19940418

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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
  • Contact: Yang Mai-Zhi


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