摘要
在制备的具有超分子特性的新型有机-无机配合物(C16H20N2)3PMo12O40中,3,3′,5,5′-四甲基联苯胺 (C16H20N2,TMB)与杂多酸阴离子PMo12O40 3-(PMA)之间存在明显的电荷转移作用,紫外光可促进TMB的氧化,转而促进(TMB)3PMA分子内的电子转移。将此化合物掺杂到聚乙烯醇(PVA)中形成复合薄膜后,由于 PVA氢键的传导和包合作用,对(TMB)3PMA光色性有较好的稳定和保护作用。在H2SO4介质中,(TMB)3- PMA／PVA复合薄膜在Au电极上能进行多步准可逆电化学反应,且该修饰电极对IO3-有明显的电催化活性。
A novel organic-inorganic complex, （TMB）3PMA was synthesized. There was an electron transfer between TMB and heteropoly anion, PMA. The UV irradiation could promote the oxidation of TMB, in turn, promotes the electron transfer within the （TMB）3PMA molecule. After （TMB）3PMA was doped into PVA to form a thin film, the photochromism of （TMB）3 PMA became stable because the conductive and enclosed action of the hydrogen bonds of PVA. The electrochemical reactions of the （TMB）3 PMA/PVA thin film at the Au electrode were quasi-reversible. （TMB）3PMA/PVA thin film modified electrode displayed electrocatalytic activity for the reduction of IO3^-.
出处
《应用化学》
CAS
CSCD
北大核心
2006年第1期18-21,共4页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金(20275025)
江苏省教育厅基金(05KJB150123)资助课题
关键词
四甲基联苯胺
钼磷杂多酸
聚乙烯醇
光化学性能
电催化活性
tetramethylbenzidine, phosphomolybdic acid, polyvinyl alcohol, photochemical property, electro- catalytic activity
