以1-丁基-3-甲基咪唑四氟硼酸盐（BMIMBF4）离子液体作为介质，利用电化学方法在铂电极表面制备了磷钼酸掺杂聚吡咯薄膜；采用扫描电子显微镜观察了所制备的薄膜的形貌，利用热重分析评价了其热稳定性，利用循环伏安法测定了其电化学活性和对甲醇的电催化氧化活性。结果表明，与传统的硫酸溶液相比，以BM I-MBF4离子液体作为反应介质制备的修饰电极的表面形貌更均匀，电化学活性和对甲醇的电催化氧化活性更强。%Polypyrrole film doped with phosphomolybdate (PMo12 ) was prepared on the surface of Pt electrode by an electrochemical process with 1-butyl-3-methyl imidazole tetrafluoroborate (BMIMF4 ) ionic liquid as the medium .The surface morphology of as-prepared polypyrrole film was observed with a scanning electron microscope ,and its thermal stability was evaluated based on thermogravimetric analysis . Moreover , the electrochemical activity of as-prepared polypyrrole film and its electrocatalytic activity towards methanol oxidation were evaluated by cyclic voltammetry .Results show that the modified electrode of polypyrrole film obtained in BMIMBF4 ionic liquid has a more uniform surface as well as better electrochemical activity and electrocatalytic activity for methanol oxidation than the one obtained in conventional sulfuric acid solution .
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