直接醇类燃料电池阳极催化剂的研究

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1、pJl『大学硕士学位论文完成日期!Q!!年土月培养单位盟扯盘鲎盏三壁堂瞳指导教师至整盎塾蕉盎苎宣塾蕉专业塑蓥查堑垄研究方向查垫挝盘墨墨笠．授予学位日期生旦目州川人学坝}：学位论义区别，发现活性炭的热处理使催化剂的性能得到了显著的提高。(3)比较不同还原剂制备的不同催化剂，在制备Pt／C和PtRu／C时，甲醛和乙二醇都收到了很好的效果，制得的催化剂的催化性能较好，优于同样Pt担载量的商业催化剂。但是在制备PtRuMo／C催化剂时，甲醛和乙二醇制得的催化剂并没有比传统的硼氢化钠制得的PtRuMo／C催化剂性能有所提高。同时发现实验中还原温度的控制对于最后催化剂的性能有很大的影响。关键词：直接醇

2、类燃料电池Nafion担载量浸渍还原法，电催化剂。II¨Ⅲ入学帧卜学位论文ResearchontheanodiccatalystinDAFCMajorCondensedMatterPhysicsPostgraduate：ZhenhuiLIUSupervisors：RuilinWANGShifuZHUComparedwitllothertraditionalfuelcells．thedirectalcoholfuelcell(DAFC)isofthewideapplicationprospectasthepowerfulsourceintheportableelectronicdevices

3、andvehicleetc．DAFChasalotofmeritssuchastheeasytransportationandstorageofthefuel，lightweightandsmallvolume，inherentsimplicityofthestructure，thehighenergyefficiencyandlowpollution．It，howeveLhastwokeytechniqueissues：thepoorkineticsoftheanodicreactionofthecommonlyusedfuelandmethanolcrossover，whichhind

4、eredthecommercialapplicationsofDAFCs．Withregardtotheabovetwoproblemsthisdissertationfocusedonhighlyefficientcatalystsandthesubstitutesformethan01．Italsodiscussedtheeffectsoftheseveralfactorsonthecatalystperformance．Mymainresearchcontained：1)thestudyontherelationshipbetweentheelectroactivityandcomp

5、ositioninthecatalyst，especiallythecatalystperformance，whichisinfluencedbyNationloading；2)thepreparationoftheanodicPI／C，PtRu／CandPtRuMo／CcatalystsusingtheinfusereductionmethodandtheelectrocatalyticactivityofthecatalystsinvestigatedbyCVandXRD；(3)StudyonthemethodstodealwiththesuppoaingofCblackpowder．

6、Themainresultsobtainedareasfollows：(1)TheelectrocatalyticactivityofthecatalystwithdifferentNationloadinginthreesolution：vitriol，methanolandethanolsolution，Wascompared．ItWaSfoundthatthecatalystswithdifferentNationloadingperformedquitdifferentlyintheJII叫川人学坝一l：学位论文threesolutions．Invitriolsolution，th

7、ebestNationloadingisfrom30％to40％．assameastheresultrangeof33％to36％intheliteratures．Inmethanolsolution，thebestNationloadingisbetween10％and20％．Inethanolsolution，thebestNationloadingisbetween5％and10％．TheinfluenceofPt