高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (6): 1005.

• 论文 • 上一篇    下一篇

间苯二胺的电化学及紫外-可见薄层光谱电化学研究

焦奎, 吕刚, 杨涛, 吴俊峰   

  1. 青岛科技大学化学与分子工程学院, 青岛 266042
  • 收稿日期:2002-02-05 出版日期:2003-06-24 发布日期:2003-06-24
  • 通讯作者: 焦奎(1945年出生),男,博士,教授,博士生导师,主要从事电分析化学研究.
  • 基金资助:

    国家自然科学基金(批准号:20075013)资助

Electrochemical and Spectroelectrochemical Study of m-Phenylenediamine

JIAO Kui, Gang, YANG Tao, WU Jun-Feng   

  1. College of Chemistry & Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  • Received:2002-02-05 Online:2003-06-24 Published:2003-06-24

摘要: 研究了间苯二胺(MPD)在金电极和SnO2;F膜电极上的循环伏安行为及在SnO2;F膜电极上的紫外-可见薄层光谱电化学性质.获得了间苯二胺在SnO2;F膜电极上电氧化的薄层恒电势电解-吸收光谱图,采用双对数法对紫外-可见薄层光谱电化学数据进行了处理.研究了间苯二胺的光谱及电化学性质,求得了间苯二胺的动力学修饰式量电位E0和αn等热力学参数.

关键词: 紫外-可见薄层光谱电化学, 循环伏安法, 单电位跃-计时吸收光谱法, 间苯二胺

Abstract: Electrochemical and spectroelectrochemical properties of m-phenylenediamine(MPD) were studied by means of cyclic voltammetry and UV-Vis thin-layer spectroelectrochemistry. The cyclic voltammogram of MPD at gold disc electrode has an oxidative peak as well as a reductive peak. But at SnO2;F film electrode, it has only an oxidative peak, which is an irreversible process. Potential-controlled UV-Vis thin-layer spectra of MPD at SnO2;F film optically transparent electrode were recorded and a double logarithmic method was applied to treat the spectroelectrochemical data. From the double logarithmic plot, the kinetically modified formal potential E0=0.766 and αn=0.41 were obtained.

Key words: UV-Vis thin-layer spectroelectrochemistry, Cyclic voltammetry, Single potential-step chronoabsorptometry, m-Phenylenediamine

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