[SiZn(H_2O)W_(11)O_(39)]^(6-)在玻碳电极上的多层组装及电催化性能  

Multilayer assembly of [SiZn(H_2O)W_(11)O_(39)]^(6-) on a glassy carbon electrode and its electrocatalytic properties

作　　者：杜金艳[1] 吕桂琴[2] 郑传明[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]北京理工大学理学院化学系,北京100081

出　　处：《分析试验室》2006年第2期51-54,共4页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金资助项目(20271007和20331010);高等学校博士点基金(20030007014);安徽师范大学青年基金资助(2005xqn18)

摘　　要：采用循环伏安法研究一取代硅钨杂多酸在酸性水溶液中的电化学行为及pH的影响。制备了包含杂多酸[SiZn(H2O)W11O39]6-(SiZnW11)和聚合物阳离子-聚二烯丙基二甲基氯化铵(PDDA)的多层膜修饰电极,研究了其电化学行为。逐层的循环伏安行为表明膜的增长均匀,峰电流随膜层数的增加而增加,与其在溶液中的氧化还原行为相比,多层膜中的SiZnW11显示出一些特殊的性质。对BrO3-和NO2-体系的还原具有良好的电催化性能。The electrochemical behavior of SiZnWn heteropolyacid in acidic aqueous solution was studied. The effect of pH on the electrochemical behavior of SiZnW11 was discussed and the mechanism was concluded. New multilayer films yanion （SiZnW11） and cationic polymer poly （diallyldimethylammonium Chloride） were fabricated. The electrochemical behaviors were investigated. Cyclic Vohammetry proves the uniform growth of the films. They exhibit some special electrochemical properties in the films, different from those in homoge The effect of pH on the redox behavior of SiZnW11 in the films was discussed in detail. The have an excellent electrocatalytic response to the reduction of BrO3^- and NO2^- neous aqueous solutions. multilayer film electrodes

关 键 词：过渡金属取代杂多酸[SiZn(H2O)W11O39]^6 多层组装 循环伏安 电催化 

分 类 号：O657.1[理学—分析化学]