铂微粒修饰聚2，5－二甲氧基苯胺电极对甲醇的电催化作用  

Electrocatalytic Oxidation of Methanol on Platinum Dispersed in Poly(2,5-dimethoxyaniline)Conducting Polymers

作　　者：万本强[1] 吴婉群[1] 

机构地区：[1]西南师范大学化学系

出　　处：《高等学校化学学报》1995年第4期622-625,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：将以铂微粒修饰玻碳电极（ＧＣ）为基体的聚２，５－二甲氧基苯胺膜（ＰＤＭＡ）形成修饰电极（Ｐｔ／ＰＤＭＡ／ＧＣ）．循环伏安实验表明，Ｐｔ／ＰＤＭＡ／ＧＣ电极对甲醇氧化比分散于玻碳电极上的铂催化活性更大。讨论了ＰＤＭＡ膜厚度、铂微粒含量及甲醇浓度对催化活性的影响。这种电极在酸性甲醇溶液中具有良好的稳定性。The poly(2,5-dimethoxyaniline)(PDMA)film electrode(Pt/PDMA/GC)with platinum microparticles was prepared by electrochemical method.The cyclic voltammograms indicate that the oxidative peak current of methanol at the Pt/PDMA/GC electrode increases obviously than bare Pt electrode.The effects of the thickness of PDMA film, the quantity of platinum microparticles, the concentration of methanol and time on the catalysis are also discussed. The electrode exhibited an excellent and a long-term stability in the acidic methnaol solutions.

关 键 词：电催化 甲醇 铂微粒 循环伏安法 PDMA 

分 类 号：O657.1[理学—分析化学] O623.411[理学—化学]