四组分纳米结构复合电极的制备及电化学性能  

Preparation and Electrochemical Properties of Pt Loaded Carbon Nanotube/nanocrystalline TiO_2-PAn Film Complex Electrode

作　　者：吴何珍[1,2] 褚道葆[2] 陈忠平[2,3] 尹晓娟[2] 

机构地区：[1]安庆职业技术学院,安庆246003 [2]安徽师范大学化学与材料科学学院,芜湖241000 [3]安徽科技学院理学院,凤阳233100

出　　处：《化学通报》2009年第2期158-162,共5页Chemistry

基　　金：国家自然科学基金项目(20476001);安徽省自然科学基金项目(00045317)资助

摘　　要：在5mmol/L H2PtCl6的稀硫酸溶液中,采用循环伏安法(CV),扫描电位为-0.2～0.6V和0.0～0.6V,分别扫描30和15循环,在碳纳米管/纳米TiO2-聚苯胺复合膜上实现了Pt纳米粒子的高度有效分散,得到多壁碳纳米管/纳米TiO2-聚苯胺载铂四组分纳米结构复合电极,通过CV法和计时电位法并结合扫描电镜对复合电极的电化学性质和结构进行表征,研究了复合电极对葡萄糖的电催化氧化性能。结果表明,该复合电极对葡萄糖的电氧化有高催化活性,具有性能稳定、重现性好、抗毒化作用强、能耐高温、易保存且使用寿命较长的优点。Highly effective dispersion of nano Pt on carbon nanotube/nanocrystalline TiO2-polyaniline （CNT/nano TiO2-PAn） complex film was performed by cyclic voltammetry （CV） in sulfuric acid containing 5 mmol· L-1 H2PtCI6 with scanning voltage - 0.2 - 0.6V and 0.0- 0.6V for scan 30 circles and 15 circles respectively. The Pt loaded CNT/nano TiO2-PAn film （CNT/nanoTiO2-PAn-Pt） complex electrode that is called four component nano structure complex electrode was prepared. The electrochemical properties and structure of the complex electrode were characterized with CV, chronopotentiometry and SEM. In addition, the electrocatalytic oxidation performance of the complex electrode for glucose was investigated. The results indicated that the complex electrode exhibited high catalytic activity to the electrochemical oxidation of glucose. The complex electrode had good recurrence, the performance was stable. It was strong to resist ability of poisoning and high temperature. It can be used quite long time and be conserved easily.

关 键 词：四组分纳米结构复合电极 循环伏安法 制备 电化学性能 

分 类 号：O646[理学—物理化学]