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采用化学还原沉积法制备了Pt-WO3/C、Pt-Ru/C和Pt-Ru-WO3/C系列催化剂.通过循环伏安与电流-电位极化研究了甲醇在不同催化剂/Nafion膜电极上的电催化氧化.结果表明,三种催化剂的催化活性顺序为:Pt-Ru-WO3/C>Pt-Ru/C>Pt-WO3/C.同时研究了甲醇浓度和催化剂的配比对阳极性能的影响.
Pt-WO3 / C, Pt-Ru / C and Pt-Ru-WO3 / C catalysts were prepared by chemical reduction deposition. Electrocatalytic oxidation of methanol over different catalyst / Nafion membrane electrodes was investigated by cyclic voltammetry and current-potential polarization. The results showed that the order of catalytic activity of the three catalysts was Pt-Ru-WO3 / C> Pt-Ru / C> Pt-WO3 / C. The effects of methanol concentration and catalyst ratio on the anode performance were also studied.