3-甲基吡啶在Pb-PTFE修饰电极上的电氧化行为  

Electrooxidation Behavior of 3-methyl Pyridine on Pb-PTFE Modified Electrode

作　　者：张佩君[1] 沈秋芳[1] 原瑞泽 黄宝华[1] 姚丽婷[1] 陈佳伟[1] 黄紫洋[1] 

机构地区：[1]福建师范大学化学与化工学院,福建福州350007

出　　处：《广州化工》2016年第22期44-46,共3页GuangZhou Chemical Industry

基　　金：2015-2016年度国家级大学生创新创业训练计划(201510394009)

摘　　要：采用复合电镀法制得Pb-PTFE疏水性修饰电极,并作为阳极应用于3-甲基吡啶水溶液的电氧化。结果表明,3-甲基吡啶在Pb-PTFE疏水性修饰电极上呈现明显的电氧化行为。根据电氧化产物的FT-IR谱图推测3-甲基吡啶在Pb-PTFE修饰电极上可能被电氧化为烟酸。电化学交流阻抗测试表明3-甲基吡啶在Pb-PTFE修饰电极上的电氧化动力学过程主要受电荷迁移和浓差扩散混合控制,可用R(Q(CW))等效电路进行模拟。Modified Pb-polytetrafluoroethylene（Pb-PTFE） hydrophobic electrode was prepared by composite electroplating process,and then the modified electrode as anode was employed to electrooxidation of 3-methyl pyridine solution. The results showed that 3-methyl pyridine had presented obvious oxidation behavior. According to the FT-IR spectra of raw product,3-methyl pyridine would be electrooxidized to nicotinic acid on Pb-PTFE modified electrode. The measurement of electrochemical impedance spectroscopy showed that the electrooxidation of 3-methyl pyridine on modified electrode would be controlled mainly by both electron transfer process and concentration diffusion process. Meanwhile,it was suggested that the oxidation process of 3-methyl pyridine on Pb-PTFE modified electrode should be simulated to R（Q（CW）） equivalent circuit.

关 键 词：3-甲基吡啶 电氧化 疏水性修饰电极 复合电镀 

分 类 号：O646.542[理学—物理化学]