EIS analysis of hydrophobic and hydrophilicTiO2 film

被引：14

作者：

Bao, Yusheng ^{[1
]}

Wang, Wei ^{[1
]}

He, Benlin ^{[1
]}

Wang, Min ^{[1
]}

Yin, Yanshen ^{[1
]}

Liang, Liang ^{[1
]}

Xu, Lei ^{[1
]}

Xu, Guocheng ^{[1
]}

机构：

[1] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2008年 / 54卷 / 02期

基金：

中国国家自然科学基金;

关键词：

TiO2; film; Hydrophobic; Hydrophilic; EIS; Photo-corrosion;

D O I：

10.1016/j.electacta.2008.07.041

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Titanium oxide films were formed on metallic titanium substrates by employing a thermal treatment at 800 degrees C under air atmosphere. Component and microstructure of the oxide films were characterized by XRD and SEM method. Water contact angles on titanium oxide film surface were measured in both dark and sunlight illumination condition. Corrosion tests were carried in seawater solution under different illuminate conditions. Electrochemical impedance spectroscopy (EIS) techniques were used to study the changes on TiO2 film. Results indicated that: hydrophilicTiO(2) film suffered a severe photo-corrosion effect in seawater due to their semiconductor properties under sunlight condition, but the hydrophobic TiO2 film under dark condition exhibited a good corrosion resistance. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：611 / 615

页数：5

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