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A Study of Titanium Oxide Film Electrodes Prepared by Direct Thermal Oxidation Ⅰ. Preparation, Structure and Electrochemical Properties
Leng Wenhua,Zhang Zhao,Cheng Shaoan,Zhang Jianqing,Cao Chunan
Author NameAffiliation
Leng Wenhua Department of Chemistry, Zhejiang University, Hangzhou 310027 
Zhang Zhao Department of Chemistry, Zhejiang University, Hangzhou 310027 
Cheng Shaoan Department of Chemistry, Zhejiang University, Hangzhou 310027 
Zhang Jianqing Department of Chemistry, Zhejiang University, Hangzhou 310027 
Cao Chunan Department of Chemistry, Zhejiang University, Hangzhou 310027 
Abstract:
The preparation, structure and electrochemical properties of titanium oxide film formed by direct thermally oxidation of titanium were investigated by atomic force microscopy, X-ray diffraction, electrochemical impedance spectroscopy and etc. The results showed that the film is rutile TiO2and the crystallization increases with increasing the oxidation temperature and time, the flat band potential shift to negative with increasing the temperature. The TiO2become compact gradually and the electric conductivity decrease when the temperature was higher than600℃.
Key words:  Titanium oxide, Thermal oxidation, Electrochemical impedance
FundProject:国家自然科学基金资助项目(29877024).
直接热氧化制备氧化钛薄膜电极的研究Ⅰ. 制备、结构和电化学性质
冷文华,张昭,成少安,张鉴清,曹楚南
摘要:
采用原子力显微镜、 X光衍射仪、电化学阻抗谱等手段对热氧化制备氧化钛膜的结构和电化学性质进行了研究.结果表明,金属钛直接热氧化制备的薄膜为金红石型二氧化钛薄膜;随氧化温度升高和时间延长,薄膜结晶度逐渐增大;随氧化温度升高,二氧化钛平带电位向负方向移动;当温度大于600℃后,二氧化钛结晶致密,电子导电性减小.
关键词:  氧化钛  热氧化  电化学阻抗
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