卟吩铁大环配合物FeTFPP修饰电极对氧的催化还原  

Catalytic Reduction of Oxygen on Nafion Film Electrode Modified with Porphore Iron FeTFPP

作　　者：易国斌[1] 潘湛昌[1] 杨迟[1] 杨文霞[1] 张环华[1] 肖楚民[1] 

机构地区：[1]广东工业大学轻工化工学院,广东广州510090

出　　处：《化学世界》2005年第8期462-464,509,共4页Chemical World

基　　金：国家自然科学基金(20105003)资助项目

摘　　要：采用循环伏安法研究了卟吩铁大环配合物FeTFPP在H2SO4溶液中对氧的催化还原,讨论了Nafion膜修饰电极上FeTFPP对电极催化活性和稳定性的影响;测定了FeTFPP在电极表面的异相电子转移反应速率常数为4.34×10-5cm/s,扩散系数为4.43×10-6cm/s。The catalytic reduction behavior of oxygen on the electrode modified with 5, 10, 15, 20-Tetrakis （pentafluorophenyl）-21 H, -23 H-porphine iron （Ⅲ） chloride （FeTFPP） was studied using cyclic voltammetry in H2 SO4 solution. The influences of porphore iron FeTFPP on the catalytic activity and stability of the electrode were discussed.The reaction rate constant and diffusion coefficient of FeTFPP on the electrode are 4.34 × 10^-5 cm/s and 4.43 × 10^-6 cm/s, respectively.

关 键 词：修饰电极 循环伏安法 卟吩铁 氧还原 电催化 

分 类 号：O646[理学—物理化学]