摘要
在 4 -氨基苯甲酸修饰的玻碳电极上制备了过渡金属取代杂多酸 [Zn W1 1 O39Mn( H2 O) ]8- ( Zn W1 1 Mn)多层膜 .各层的循环伏安行为证明膜的增长均匀 ,峰电流随层数的增加而增加 .与其在溶液中的氧化还原行为相比 ,多层膜中的 Zn W1 1 Mn显示出一些特殊的性质 .还讨论了 p H对其氧化还原行为的影响 .该多层膜对Br O- 3 和 H2 O2
Through layer by layer assembly, undecatungstozincates monosubstituted by transition metals Mn, ZnW 11 Mn(H 2O)O 8- 39 was successfully immobilized on a glassy carbon electrode surface grafted covalently by 4 aminobenzoic acid. The electrochemical behavior of these polyoxometalates was investigated. Cyclic voltammetry proves the uniform growth of the film. They exhibit some special electrochemical properties in the films, different from those in homogeneous aqueous solution. The effect of pH on the redox behavior of ZnW 11 Mn(H 2O)O 8- 39 in the film was discussed in detail. The multilayer film electrodes have an excellent electrocatalytic response to the reduction of H 2O 2 and BrO - 3, and to the oxidation of ascorbic acid.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第10期1641-1644,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :2 9835 12 0
2 9875 0 2 8)资助
