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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (9): 888-892. 上一篇    下一篇

研究论文

钛基二氧化铅电极电沉积制备过程中的立体生长机理

任秀斌a 陆海彦a,b 刘亚男a 李 伟a 林海波*,a,b

  

  1. (a吉林大学化学学院 长春 130012)
    (b吉林省表面与界面化学重点实验室 长春 130012)

  • 投稿日期:2008-08-23 修回日期:2008-11-24 发布日期:2009-05-14
  • 通讯作者: 林海波

3-Dimensional Growth Mechanism of Lead Dioxide Electrode on the Ti Substrate in the Process of Electrochemical Deposition

Ren, Xiubin a Lu, Haiyan a,b Liu, Yanan a Li, Wei a Lin, Haibo *,a,b   

  1. (a College of Chemistry, Jilin University, Changchun 130012)
    (b Key Laboratory of Surface and Interface Chemistry of Jilin Province, Jilin University, Changchun 130012)
  • Received:2008-08-23 Revised:2008-11-24 Published:2009-05-14
  • Contact: Lin, Haibo

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1885

被引次数

92 | 10

采用恒电位的方法在涂有SnO2＋Sb2O5中间层的Ti基体上电沉积制备了不同颗粒尺度的Ti/PbO2电极, 利用XPS, XRD和SEM等方法对Ti/PbO2电极电沉积制备过程中电极的结构、表面形貌等物理化学性能进行了研究. 结果表明, Ti/PbO2电极涂层中Pb元素在138.2～138.4 eV之间有明显的Pb4f7/2峰, 表明电极表面上主要得到的是PbO, XRD和XPS分析结果证明电极涂层体相生成的是PbO2. 基于Ti/PbO2涂层的形成是不同晶面生长过程的事实, 提出Ti/PbO2电极的立体生长机理.

关键词: 二氧化铅电极, 制备, 立体生长机理, 电沉积

PbO2 on different particle scales was deposited potentiostatically onto SnO2＋Sb2O5 layer of Ti substrate. To further investigate the structure and morphology of Ti/PbO2, the electrode was characterized by SEM, XPS and XRD, which shows that the binding energy value of Pb 4f core level for PbO2 is between 138.2 and 138.4 eV, indicating that the surface of electrode is composed of PbO. XRD and XPS data also shows that the bulk is mainly composed of the PbO2. Based on the fact that the electrochemical deposition process is the growth process in different crystal faces, the 3-dimensional growth mechanism of the Ti/PbO2 electrode was suggested.

Key words: lead dioxide electrode, preparation, 3-dimensional growth mechanism, electrochemical deposition