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.
1SurampudiS，narayananSR，VamosEetal．Advancesindirectoxidationmethanolfuelcels．J．PowerSources，1994，47：3772WatanabeM，SaegusaS，StonehartP．Highplatinumelectrocatalystutilizationsfordirectmethanoloxi－dation．J．Electroanal．Chem．，1989，271：2133ShenPK，TseungACC．AnodicoxidationofmethanolonPt／WO3inacidicmedia．J．Electrochem．Soc．，1994，141（11）：30824ShuklaAK，RavikumarMK，AricoASetal．Methanolelectrooxidationoncarbon－supportedPt－WO3－xelectrodesinsulphuricacidelectrolyte．J．Appl．Electrochem．，1995，25：5285ShenPK，ChenKY，TseungACC．PerformanceofCO－electrodepositedPt－Ru／WO3electrodesfortheelectrooxidationofformicacidatroomtemperature．J．Electroanal．Chem．，1995，389：2236ChenKY，ShenPK，TseungACC．AnodicoxidationofimpureH2onteflon－bondedPt－Ru／WO3／Celectrodes．J．Electrochem．Soc．，1995，142（10）：L1857HariP，Dhar．Onsolidpolymerfuelcels．J．Electroanal．Chem．，1993，357：2378苏爱华，李长志，孙公权等．Pt／C－SPE和Pt－Ru／C－SPE膜电极上甲醇的催化氧化．电化学，1995，1（4）：3979AricoAS，KimH，ShukalAKetal．Methanoloxidationoncarbon－supportedPt－Snelectrodesinsilico－tungsticacid．Electrochem．Acta．，1994，39（5）：69110AricoAS，PoltarzewskiA，KimHetal．Investigationofacarbon－supportedquaternaryPt－Ru－Sn－Wcatalystfordirectmethanolfuelcels．J．PowerSources，1995，55：159
