首页 | 本学科首页   官方微博 | 高级检索  
     检索      

Electrochemical characteristics of poly(ophenylendiamine) film electrodes in phosphatic solution
作者姓名:YE  Bao-Xian ZHANG  Wu-Ming ZHOU  Xing-Yao
作者单位:YE,Bao-Xian ZHANG,Wu-Ming ZHOU,Xing-YaoDepartment of Chemistry,Wuhan University,Wuhan,Hubei 430078,China
基金项目:Project supported by the National Natural Science Foundation of China.
摘    要:The electrochemical characteristics of poly(o-phenylendiamine) (POPD) film modified electrodes have been investigated using different electrochemical techniques.The main interest is focused on the effect of potential and film thickness on the electrode process.Good agreement has been found for the apparent diffusion coefficient estimated by chronocoulometry and impedance spec-troscopy.The charge transfer process within POPD films is diffusion processes at negative and positive overpotentials and electron hopping mechanism at formal potential.The POPD film conductivity of the oxidized state is better than that of the reduced state.For all electrode processes,the H+ may penetrate the film/electrolyte interface and take part in charge transfer or protonation-deprotonation of phenazine rings.


Electrochemical characteristics of poly(ophenylendiamine) film electrodes in phosphatic solution
YE,Bao-Xian ZHANG,Wu-Ming ZHOU,Xing-Yao.Electrochemical characteristics of poly(ophenylendiamine) film electrodes in phosphatic solution[J].Chinese Journal of Chemistry,1997,15(4):343-352.
Authors:YE  Bao-Xian ZHANG  Wu-Ming ZHOU  Xing-Yao
Institution:YE,Bao-Xian ZHANG,Wu-Ming ZHOU,Xing-YaoDepartment of Chemistry,Wuhan University,Wuhan,Hubei 430078,China
Abstract:The electrochemical characteristics of poly(o-phenylendiamine) (POPD) film modified electrodes have been investigated using different electrochemical techniques.The main interest is focused on the effect of potential and film thickness on the electrode process.Good agreement has been found for the apparent diffusion coefficient estimated by chronocoulometry and impedance spec-troscopy.The charge transfer process within POPD films is diffusion processes at negative and positive overpotentials and electron hopping mechanism at formal potential.The POPD film conductivity of the oxidized state is better than that of the reduced state.For all electrode processes,the H+ may penetrate the film/electrolyte interface and take part in charge transfer or protonation-deprotonation of phenazine rings.
Keywords:Electropolyrnerization  o-phenylendiamine  electrochemistry
本文献已被 CNKI 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号