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通过电化学扫描法在玻碳电极和导电玻璃基底上组装制备过渡金属铜取代多金属氧酸盐[PCu(H2O)Mo11O39]5-和4代聚酰胺-胺(G4-PAMAM)交替沉积的复合膜.X射线光电子能谱(XPS),原子力显微镜(AFM),循环伏安法(CV)结果表明复合膜成功制备且有好的均匀性.多层膜中的[PCu(H2O)Mo11O39]5-与其在溶液中的氧化还原行为相比,电子转移控制速率不同,该多层膜修饰电极稳定性好,对NO-2的还原及抗坏血酸的氧化具有较好的电催化性能.
Electrochemical scanning method was used to fabricate the composite of 5 - and 4-generation polyamidoamine (G4-PAMAM) deposited alternately on the glassy carbon electrode and the conductive glass substrate by using the transition metal copper substituted polyoxometalate [PCu (H2O) Mo11O39] The results of XPS, AFM and CV showed that the composite films were successfully prepared and had good uniformity. [PCu (H2O) Mo11O39] 5 Compared with its redox behavior in solution, the rate of electron transfer control is different. The modified multilayer electrode has good stability and good electrocatalytic activity for the reduction of NO-2 and the oxidation of ascorbic acid.