物理化学学报 >> 2011, Vol. 27 >> Issue (05): 1122-1127.doi: 10.3866/PKU.WHXB20110433

电化学和新能源 上一篇    下一篇

溶胶-凝胶-水热晶化法制备锐钛矿TiO2纳米膜的耐蚀性能

云虹1,2, 林昌健1, 杜荣归1   

  1. 1. 厦门大学化学化工学院化学系, 固体表面物理化学国家重点实验室, 福建 厦门 361005;
    2. 上海高校电力腐蚀控制与应用电化学重点实验室, 上海电力学院能源与环境工程学院, 上海 200090
  • 收稿日期:2010-12-07 修回日期:2011-02-11 发布日期:2011-04-28
  • 通讯作者: 林昌健 E-mail:cjlin@xmu.edu.cn
  • 基金资助:

    国家自然科学基金(50571085, 20773100, 21003089)和国家高技术研究发展专项(2009AA03Z327)资助项目

Anticorrosion Properties of Nano Anatase TiO2 Films Derived from Sol-Gel and Hydrothermal Crystallization

YUN Hong1,2, LIN Chang-Jian1, DU Rong-Gui1   

  1. 1. State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China;
    2. Key Laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Department of Energy Source and Environment Engineering, Shanghai University of Electric Power, Shanghai 200090, P. R. China
  • Received:2010-12-07 Revised:2011-02-11 Published:2011-04-28
  • Contact: LIN Chang-Jian E-mail:cjlin@xmu.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (50571085, 20773100, 21003089) and National High Technology Research and Development Program of China (2009AA03Z327).

摘要:

以钛酸正丁酯为前驱体, 采用溶胶-凝胶-水热晶化法在不锈钢(SS)表面制备TiO2纳米膜. 利用X射线衍射(XRD)、Raman光谱、场发射扫描电子显微镜(SEM)、原子力显微镜(AFM)和俄歇电子能谱(AES)表征了TiO2纳米膜的晶型、表面形貌和表面化学组成. 通过极化曲线和电化学阻抗谱(EIS)研究了TiO2纳米膜的耐蚀性能. 170 °C下水热晶化制备的锐钛矿TiO2与450 °C焙烧制备的锐钛矿TiO2的结晶度类似, 但两种TiO2薄膜的表面结构存在明显差异, 水热晶化法制备的TiO2纳米膜在3.5% (w) NaCl溶液中的耐蚀性能优于焙烧法制备的.

关键词: 水热晶化, 锐钛矿TiO2, 腐蚀与防护

Abstract:

Nano TiO2 films were applied to the surface of stainless steel (SS) by sol-gel and hydrothermal crystallization using Ti(O(CH2)3CH3)4 as a precursor. The properties of the TiO2 films were determined by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and Auger electron spectroscopy (AES). The corrosion performance of the TiO2 films was evaluated by electrochemical impedance spectroscopy (EIS) and polarization measurements. Anatase TiO2 films prepared by hydrothermal crystallization at 170 °C showed similar crystallization to those prepared by conventional calcination at 450 °C. The TiO2 prepared by the two methods were, however, obviously different from the surface structure and the material prepared by hydrothermal crystallization showed better anticorrosion performance in 3.5% (w) NaCl solution compared with the material prepared by calcination.

Key words: Hydrothermal crystallization, Anatase TiO2, Corrosion and protection

MSC2000: 

  • O646