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.
A series of catalysts, Pt-WO_3/C, Pt/Ru/C and Pt-Ru-WO_3/C were prepared by chemical reduction deposition. Electrocatalytic oxidation of methanol on different catalyst/Nafion membrane electrodes was studies by cyclic voltammetry and currentpotential polarization. The results indicated that the catalytic activity order of different catalysts is as follows: Pt-Ru-WO_3/C>Pt-Ru/C>Pt-WO_3/C. At the same time, influences of methanol concentrations and catalyst proportion on performances of anodes were also studies.
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