甲基紫精/K_4Nb_6O_(17)层状纳米复合材料修饰玻碳电极的循环伏安特性

Cyclic Voltammetric Behavior of Methyl Viologen Intercalated into Layered K_4Nb_6O_(17) Modified Glass Carbon Eledtrode

采用离子交换法制备了甲基紫精/K4Nb6O17层状纳米复合材料,并用SEM,XRD,IR等方法对其进行了表征,对该层状纳米复合材料修饰电极进行了电化学行为测试。循环伏安测试结果表明,层间甲基紫精的电子转移反应,显示出低扫描速度下的表面控制过程向高扫描速度下的扩散控制过程转变的特征。

Intercalation compound of methylviologen （1, 1＇-dimethyl-4, 4＇ dipyridinium ion, MV2＋ ） into layered niobate K4Nb6O17.3H2O was prepared by ion-exchange method. The layered nanocomposite material was characterized with SEM, XRD and IR and the electrochemical behaviors of the MV2＋-K4Nb6O17 modified electrode were investigated. According to the results of cyclic vohammograms of the MV2＋-K4 Nb6 O17 nanocomposite material, the one-electron transfer reaction of MV2＋ changes from surface-restricted process at lower scan rates to a diffusion-controlled process at higher scan rates.