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磺化4,4'-联苯二酚的电氧化行为

侯宏英1,2*,刘显茜3,Phippe Knauth2*   

  1. (1.昆明理工大学材料科学与工程学院 昆明 650093;
    2.Aix-Marseille UnivCNRS,Laboratoire Chimie Provence(UMR 6264), Centre St Jérme,13397 Marseille,France;
    3.昆明理工大学机电工程学院 昆明 650093)
  • 收稿日期:2012-09-19 修回日期:2012-10-27 出版日期:2013-04-10 发布日期:2013-04-10
  • 通讯作者: 侯宏英，讲师; Tel:0871-5109952; E-mail:hhy@dicp.ac.cn; 研究方向：电化学和高分子膜材料
  • 基金资助:
    欧盟第七框架EU-FP7(FCH-JU2008)；云南省人才培养项目（KKSY 201251083）；昆明理工大学重点学科建设项目（14078232）资助项目

Electrooxidation Behaviors of Sulfonated 4,4'-Biphenyl Diphenol

HOU Hongying1,2*, LIU Xianxi3, Philippe Knauth2*   

  1. (1.Faculty of Material Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China；
    2.Aix-Marseille Univ-CNRS,Laboratoire Chimie Provence(UMR 6264),Centre St Jérme,13397 Marseille,France；
    3.Faculty of Mechanical and Electronic Engineering,Kunming University of Science and Technology,Kunming 650093,China)
  • Received:2012-09-19 Revised:2012-10-27 Published:2013-04-10 Online:2013-04-10
  • Contact: Hongying Hou

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被引次数

1

摘要： 通过电化学方法考察了磺化4,4′-联苯二酚在不锈钢电极表面的电氧化行为。 并采用原位交流阻抗技术监测了电聚合反应前后电极之间的溶液阻抗响应。 结果表明，磺化4,4′-联苯二酚在不锈钢电极表面发生的电氧化反应是不可逆的，起始氧化电压和峰值电压分别为0.95和1.2 V。 电氧化反应后，由于聚合物膜的形成，电极之间的溶液阻抗增加了0.27 Ω·cm2，增幅并不大，应该归功于联苯基团和磺酸基的双重促进效应。

关键词: 磺化联苯二酚, 循环伏安法, 计时电流法, 交流阻抗, 电氧化反应

Abstract: The electrooxidative behaviors of sulfonated 4,4′-biphenyl diphenol were investated on the stainless steel electrode by electrochemical methods. The alternative current(AC) impedance responses of the electrolyte system between the electrodes before and after electrooxidation were also in situ monitored. The results show that the electrooxidation of sulfonated 4,4′-biphenyl diphenol is irreversible similar to those of other phenolic compounds, and the onset potential and peak potential are 0.95 V and 1.2 V, respectively. After electrooxidation, the corresponding AC impedance increases only by 0.27 Ω·cm2， possibly due to the formation of polymer film. This increase is slight, which is attributed to the double promoting effects of biphenol and sulfonated acid group.

Key words: Sulfonated biphenyl diphenol, cyclic voltammetry, Chronamperometry, electrochemical impedance spectroscopy, Electrooxidization

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