有机锆取代的硅钼杂多酸盐及其修饰电极的电化学性质

有机锆取代的硅钼杂多酸盐及其修饰电极的电化学性质

刘丽，田利，陈丽，许宏鼎，吕男

（吉林大学化学学院，长春 130012）

收稿日期:2005-06-24 修回日期:1900-01-01 出版日期:2006-03-26 发布日期:2006-03-26
通讯作者: 吕男

Electrochemical Properties of Organo-zirconium Substituted Heteropolymolybdate and Its Modified Electrode

LIU Li, TIAN Li, CHEN Li, XU Hongding, LV Nan

(College of Chemistry, Jilin University, Changchun 130012, China)

Received:2005-06-24 Revised:1900-01-01 Online:2006-03-26 Published:2006-03-26
Contact: LV Nan

摘要/Abstract

摘要： 有机锆取代的硅钼杂多酸盐 (Bu₄N)₅［(CpZr)SiMo₁₁O₃₉］ (Cp=—C₅H₅)不溶于水而溶于乙腈中, 其在酸性乙腈中显示出3步氧化还原过程，以超微电极循环伏安法和计时库仑法与常规循环伏安法并用的办法，探讨了它的电氧化还原过程，各步对应2个合并的单电子转移过程；通过吸附作用将该硅钼杂多酸盐修饰到金电极表面以制成修饰电极，考察了其在水介质中对IO₃^-， BrO₃^-和NO₂^-的催化还原作用.

关键词: 硅钼杂多酸盐, 碘酸根, 循环伏安法, 计时库仑法

Abstract: (Bu₄N)₅［(CpZr)SiMo₁₁O₃₉］ is insoluble in water and soluble in acetonitrile. In the acidic acetonitrile solution, the heteropolymolybdate exhibits three steps redox processes. By means of multifarious electroanalysis techniques， the electron transfer for the first step was explored. Every step process corresponded to two overlapping singleelectron transfers. The heteropolymolybdate was adsorbed onto Au electrode surface to prepare a modified electrode. On this electrode, the electrocatalytic reduction of IO₃^-， BrO₃^- and NO₂^- were investigated.

Key words: heteropolymolybdate, iodate, cyclic voltammetry, chronocoulometry

中图分类号:

O657.1

刘丽，田利，陈丽，许宏鼎，吕男. 有机锆取代的硅钼杂多酸盐及其修饰电极的电化学性质[J]. J4, 2006, 44(02): 260-264.

LIU Li, TIAN Li, CHEN Li, XU Hongding, LV Nan. Electrochemical Properties of Organo-zirconium Substituted Heteropolymolybdate and Its Modified Electrode[J]. J4, 2006, 44(02): 260-264.