中文摘要：

采用循环伏安法在玻碳电极上制备了{H3[PMo12O40]／Pt／PAMAM}复合膜，用X射线光电子能谱（XPS）、扫描电子显微镜（SEM）、电子能谱技术（EDS）、原子力显微镜（AFM）和循环伏安法（CV）研究了膜的组成、形貌及其对甲醇的电催化氧化活性。结果表明，Pt纳米粒子在PAMAM基底上分散均匀；最外层沉积H3[PMo12O40]后，与相同条件下制备的Pt／PAMAM膜相比，{H3[PMo12O40]／Pt／PAMAM}复合膜修饰电极对甲醇的氧化有更强的电催化活性。

英文摘要：

The {H3[PMo12O40]/Pt/PAMAM} composite film was prepared on glassy carbon electrode（GCE） by cyclic voltammetry scanning. The film and the electrocatalystic activity toward methanol were characterized by X- ray photoelectron spectroscopy（XPS）, scanning electron microscope（SEM）, energy disperse spectroscopy（EDS）, atomic force microscopy（AFM） and cyclic voltammetry（CV）. The result shows that the Pt nanoparticles are well dispersed on the PAMAM film, and the adding of H3[PMo12O40] on the surface of Pt nanoparticles can improve the electrocatalytic activity toward methanol oxidation.