通过层层自组装技术在氧化锢锡(ITO)电极上制备Keggin型硼钨铜杂多酸/聚酰胺-胺有机-无机复合多层膜.利用X射线光电子能谱(XPS),UV-Vis光谱和原子力显微镜(AFM)等手段对多层膜的组成和表面形貌进行了表征.结果表明,杂多酸阴离子和聚酰胺-胺树形分子通过静电相互作用形成了多层膜且膜的增长均匀.杂多酸阴离子组装到聚酰胺-胺上聚集形成的纳米簇颗粒度均匀、单分散性好,纳米簇直径为30~45nm,高度约为25~40nm.循环伏安法测试结果表明,在酸性水溶液中该膜修饰电极的稳定性良好,对亚硝酸盐具有良好的催化活性.
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