Citation: Wen Hua LENG, Zhao ZHANG, Shao An CHENG, Jian Qing ZHANG, Chu Nan CAO. Estimation of Photoelectrocatalytic Activity of Titanium Oxide Film Electrodes by Ac Impedance[J]. Chinese Chemical Letters, ;2001, 12(11): 1019-1022. shu

Estimation of Photoelectrocatalytic Activity of Titanium Oxide Film Electrodes by Ac Impedance

Department of Chemistry, Yuquan Campus, Zhejiang University, Hangzhou 310027

Received Date: 6 May 2001

Fund Project: Financial support from the foundation of NSFC of China (Grant 29877024).

In this paper, we demonstrated that the charge-transfer resistance of photoanode can be calculated through the analysis of its electrochemical impedance spectroscopy (EIS) and the photoelectrocatalytic degradation rate of aniline was inversely proportional to the value of charge-transfer resistance of photoelectrodes prepared by thermally oxidation on titanium. The value of charge-transfer resistance is smaller, the higher its photoelectro-activity is.
- Photoactivity,
- charge-transfer resistance,
- titanium dioxide,
- impedance
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