采用一种新的调变多元醇法制备用于直接甲醇燃料电池的50%(质量分数,下同)Pt/C阴极电催化剂.利用X射线衍射、透射电镜以及动态伏安法表征催化剂的物相组成、微观组织形貌以及电化学性能.研究结果表明,该法制备的Pt/C催化剂平均粒度小(约为2.52 nm)、粒度分布均匀、分散性好,峰电流密度为740.7 mA/mg.通过对比实验,发现采用该法制备的催化剂对甲醇氧化的电催化活性、稳定性均优于同类型载铂量更高的商品催化剂.
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