分析化学2001，Vol.29Issue(6)：679-681,3.
镧取代Dawson型磷钨杂多酸聚吡咯修饰电极的制备及其电化学性能
Preparation of Lanthanum*# Substituted PropertyHeptadecatungstodiphosphate- Polypyrrole Film Modified Electrode and Its Electr
摘要
Abstract
The heptadecatungstodiphosphate substituted by L a(Ⅲ) with the formula α2-K7P2W17O61(La.OH2 ) (P2W 17La) was prepared by vacant refilling method. The anion of single substitu ted Dawson-type tungstophosphate salt was doped into the polypyrrole (PPY) film on a glassy carbon electrode (GC) by electrochemical method to prepare the chem ically modified electrode (P2W17La/PPY/GC). It maintains not only t he electrochemical activity and electrocatalytic property of P2W17L a, but also has good stability and sensitivity. In 0.50 mol/L HCl solution, th e first cathodic peak of P2W17La doping in polypyrrole film can cat alyze well the electroreduction of nitrite. The catalytic current was proporti onal to the concentration of nitrite between 6.0×10-5 and 1.0×10-2 mol/L.关键词
镧取代型杂多酸盐/聚吡咯膜/化学修饰电极/亚硝酸根/电催化还原引用本文复制引用
段德良,王宅中,周世萍,吴刚..镧取代Dawson型磷钨杂多酸聚吡咯修饰电极的制备及其电化学性能[J].分析化学,2001,29(6):679-681,3.
