采用电化学聚合法制备了掺杂CeO2纳米粒子的聚苯胺(PAN)/聚砜(PSF)复合膜电极,在其上电沉积铂粒子,制得了铂-氧化铈/聚苯胺/聚砜的复合膜修饰电极.复合膜的形貌和化学组分通过冷场发射扫描电子显微镜(Cold FE-SEM)和能鼍散射X射线谱(EDS)进行了表征,用循环伏安法和电化学交流阻抗法考察了复合膜电极对甲醇的电催化氧化性能.结果表明,复合膜的双层多孔结构使铂粒子与CeO2粒子在复合膜内层的多孔聚苯胺上均匀沉积,粒子平均尺寸约为80 nm;CeO2为铂质量的7%时,铂-氧化铈/聚苯胺/聚砜复合膜修饰电极对甲醇有很好的电催化氧化性能和高的稳定性.
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