Chinese Journal of Applied Chemistry ›› 1996, Vol. 0 ›› Issue (6): 52-54.

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Photoelectrochemical Reduction of Carbon Dioxide on P/P+-Si Electrode Modified with Titanium Dioxide Film

Wei Peihai1, Qi Xueyong1, Chun Yu Baozhu2   

  1. 1. Department of Chemistry, Shandong Institute of Education, Jinan 250013;
    2. Department of Chemistry, Shandong University, Jinan
  • Received:1996-03-15 Revised:1996-06-17 Published:1996-12-10 Online:1996-12-10

Abstract: Based on metal organic chemical deposition technique,a thin film of titanium dioxide was grown on the surface of P/P+-Si substrate from tetrabutyl titanate.The structure and transmission spectrum of the film were analyzed by X-ray diffraction and ultraviolet-visible spectroscopy.The photoresponse of P/P+-Si/TiO2 and photoelectrochemical reduction of carbon dioxide on it were studied.In this electrode reaction,formic acid and formaldehyde were obtained and light energy was partially converted into electrochemical energy.

Key words: carbon dioxide, thin film of titanium dioxide, photoelectrochemistry, P/P+-Si electrode