物理化学学报 >> 2003, Vol. 19 >> Issue (12): 1154-1158.doi: 10.3866/PKU.WHXB20031213

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涂膏热解法制备钛基Sn、Sb氧化物电极

张乃东;李宁;彭永臻   

  1. 哈尔滨工业大学应用化学系,哈尔滨　150001; 哈尔滨工业大学市政与环境工程学院,哈尔滨　150090
  • 收稿日期:2003-05-26 修回日期:2003-07-20 发布日期:2003-12-15
  • 通讯作者: 张乃东 E-mail:zndzw@hlju.edu.cn

Preparation and Properties of Ti/ Sn、Sb Oxide Electrode by the Paste-coating Method

Zhang Nai-Dong;Li Ning;Peng Yong-Zhen   

  1. Department of Chemistry, Harbin Institute of Technology， Harbin　150001; College of Environmental Science and Engineering, Harbin Institute of Technology， Harbin　150090
  • Received:2003-05-26 Revised:2003-07-20 Published:2003-12-15
  • Contact: Zhang Nai-Dong E-mail:zndzw@hlju.edu.cn

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摘要： 研究了涂膏热解法制备Ti/Sn、Sb氧化物电极的新工艺，考察了SnCl4、SbCl3加入量和烧结温度对电极寿命和析氧电位的影响，并对电极进行了SEM、EDS、XRD测试.结果表明，在涂层厚度相近时，涂膏法制备的电极与热解法相比，具有表面氧化物分布均匀和TiO2不易裸露的优点，从而提高了析氧电位，延长了电极寿命，使电极具有很高的电催化活性和电化学稳定性.

关键词: 热解, Sn、Sb氧化物, 电极

Abstract: The paste-coating method is a modified method of coating-pyrogenation. In this new method, Ti-substrate electrode coated by oxides is covered with paste of Sn、Sb hydroxide to decrease the volatilization of the coating component. The preparation conditions for Ti/Sn、Sb oxide electrode by the paste-coating method are investigated. The effect of the amount of SbCl3 added and the sintering temperature on the electrode lifetime and oxygen evolution potential are investigated with EDS, SEM and XRD analysis. The results indicate that the electrode prepared by coating-pyrogenation appears some exposure of TiO2 due to inhomogeneous distribution of coating oxides on its surface, while the one prepared by paste-coating method enhances homogeneity for the same coating thickness. As a result, the electrode exhibits a higher oxygen evolution potential and has a longer lifetime for its higher electro-catalytic activity and the electrochemical stability.

Key words: Pyrogenation, Sn、Sb oxides, Electrode