中华医学超声杂志

应用化学 ›› 1996, Vol. 0 ›› Issue (6): 52-54.

• 研究简报 • 上一篇    下一篇

CO2在TiO2薄膜修饰p/p+－Si电极上的光电化学还原

魏培海1, 祁学永1, 淳于宝珠2   

  1. 1. 山东教育学院化学系 济南 250013;
    2. 山东大学化学系 济南
  • 收稿日期:1996-03-15 修回日期:1996-06-17 出版日期:1996-12-10 发布日期:1996-12-10

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

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摘要： 在半导体电极表面实现CO2的光电化学还原,可获得甲醛、甲酸、甲醇等重要有机物,将光能转化为电化学能,为合理利用CO2废气,实现太阳能的转换和储存开辟了新途径.此项研究中普遍利用单晶半导体、粉末半导体、半导体p/n结和高聚物修饰半导体等作为电极材料.

关键词: 二氧化碳, TiO2薄膜, 光电化学, p/P+－Si电极

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

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