Pt/{[PMo_(12)O_(40)]^(3-)/PAMAM}_n多层复合膜的制备及其电催化性能  

Preparation and Electrocatalysis Properties of Pt/{[PMo_(12)O_(40)]^(3-)/PAMAM}_n Multilayer Films

作　　者：余燕芳[1] 何晓蕾[1] 石雪英[1] 陈秋玉[1] 林深[1] 

机构地区：[1]福建师范大学化学与化工学院,福建福州350117

出　　处：《福建师范大学学报（自然科学版）》2013年第6期80-86,共7页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(21171037);国家级大学生创新创业训练计划资助项目(201210394004)

摘　　要：采用电化学扫描电沉积法在玻碳电极(GC)或氧化铟锡电极(ITO)上经过交替沉积制备了{[PMo12O40]3-/PAMAM}n多层复合膜,通过循环伏安(CV)测试表明多层膜在电极基底表面均匀增长.并以{[PMo12O40]3-/PAMAM}n多层复合膜为载体在其表面上通过原位电沉积负载上Pt纳米粒子,X射线光电子能谱(XPS)、扫描电镜(SEM)分析结果表明铂纳米粒子成功负载在{[PMo12O40]3-/PAMAM}n复合膜上.用该方法制备的载铂多层复合膜修饰电极,不仅电极稳定性好,对直接甲醇氧化具有良好的催化活性.The novel { [PMo12O40] 3-/PAMAM }n multilayer films were prepared on the GC or ITO electrode surface by the electrochemical scan electrodepositing method,and their homogeneous and uniform traits were verified by cyclic voltammetry.{ [PMo12O40]3-/PAMAM}n multilayer films were used as a supporter for electro-deposition of Pt nanoparticles in situ.XPS,SEM analysis revealed that Pt nanoparticles had been loaded on the surface of the { [PMo12O40] 3-/PAMAM} n multilayer films in the synthesis process.The as-prepared Pt/{ [PMo12O40] 3-/PAMAM } n composite films were stable and exhibited good catalytic activities for direct methanol oxidation.

关 键 词：铂 磷钼酸盐 聚酰胺-胺 复合膜 甲醇电催化氧化 

分 类 号：O646[理学—物理化学]