葡萄糖在碳纳米管/纳米TiO_2膜载Pt复合电极上的电催化氧化  

Electrocatalytic Oxidation of Glucose on Carbon Nanotube/Nanocrystalline TiO_2 Film Loaded Pt Complex Electrode

作　　者：褚道葆[1] 李晓华[1] 冯德香[1] 顾家山[1] 沈广霞[2] 

机构地区：[1]安徽师范大学化学与材料科学学院,芜湖241000 [2]厦门大学化学系,厦门361005

出　　处：《化学学报》2004年第24期2403-2406,共4页Acta Chimica Sinica

基　　金：安徽省自然科学基金 (No.0 0 0 4 531 7);安徽省高校科研基金(Nos.2 0 0 3kj1 4 1 ;2 0 0 4kj1 64zd)资助项目

摘　　要：用电化学循环伏安法和计时电位法研究了葡萄糖在碳纳米管 /纳米TiO2 膜载Pt (CNT/nano TiO2 /Pt)复合电极上的电催化氧化 .结果表明 ,在碱性介质中CNT/nano TiO2 /Pt复合电极对葡萄糖的电氧化具有高催化活性 ,葡萄糖氧化峰电流密度高达 13mA/cm2 ,比铂电极上的增大一倍 ;复合电极性能稳定 ,抗中毒能力强 ,不易发生氧化振荡 ,是葡萄糖燃料电池和葡萄糖传感器的高活性催化电极 .Electrocatalytic oxidation of glucose on carbon nanotube/nanocrystalline TiO2 film loaded Pt (CNT/nanoTiO(2)/Pt) complex electrode was investigated by cyclic voltammetry and chronopotentiometry. The results indicated that CNT/nano-TiO2/Pt complex electrode has high catalytic activity to the electrochemical oxidation of glucose in alkaline media, and the peak current density of oxidation of glucose is up to 13 mA/cm(2), which is one time higher than that on a platinum electrode. The complex electrode performance is stable, and it is strong resistant to poisoning and difficult to oxidize oscillatory. It is a highly catalytic electrode for using in glucose fuel cell and glucose sensor.

关 键 词：复合电极 纳米TIO2膜 催化电极 燃料电池 电催化氧化 用电 振荡 电化学循环伏安法 铂电极 电氧化 

分 类 号：O646[理学—物理化学] TM911.4[理学—化学]