金属氧化物在直接醇类燃料电池中的应用研究-应用化学专业毕业论文

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1、金属氧化物在直接醇类燃料电池中的应用研究石墨电极相比于Pt/CNTs/石墨电极对乙醇电催化氧化具有更好的催化活性，并表现出良好的抗中毒能力。关键词:碳纳米管;氧化物;电催化剂;铂;电极;直接醇类燃料电池犷高校教师硕士学位论文AbstraCtDireetaleoholfueleell(DAFC)15akindofeleetriealgenerationdeviee.Iteonvertsdireetlychemiealenergy，whieh15saveduPinfuelsandoxidant，toeleetrieenergy.Andit15thefourtheleetrie

2、algenerationteehnologyafterwaterPower，thermalPowerandnuclearPower，whiehwillbethePreferrred，undefiled，higheffieieneyeleetrieityPowerinthe21eenture.WiththedeveloPmentofDAFCinvestigation，thisgreenenergyteehnologybeeomesmature，whieh15ofgreatimPortaneeforsovlingseareityofenergysoureesandenviro

3、nmentalPollution.However，themostProblemsaretheloweleetroehemiealaetivityofanodieeatalystsandhigh“methanolerossover，，throughtheProtonexehangemembrane(PEM)whiehwilldePresstheaetivityofeathode.EsPeeially，noblemetalPtwithhighPriee15stillthePrimaryeatalystsforDAFC.Therefore，it15neeessarytoPreP

4、areeatalystswithlowloadingandhighaetivity，whieh15alsoaneffeetivewaytoredueetheeostoffueleell.InthisPaPer，Pt一Ceox/graPhite，Pt一Moox/CNT/graPhiteandPt/MgO一Ce02一CNT/graPhiteeleetrodeswerePreParedandtheireleetroehemiealProPertieswereinvestigatedindetail.ThemainworksinvolvedinthisthesisarePrese

5、ntedasfollows:1.Ceo、nanoPartielesusedinthisstudywasPreParedbyagglomerationathightemPerature，theneomPlexedwithPttoformthenewhighlydisPersedanodeeatalyst.TheeleetroeatalytieProPertiesofPt一CeO、eatalystsuPPortedongraPhiteeleetrodeformethanoloxidationhavebeeninvestigatedin1.0MCH3OH+0.1MHZSO4by

6、eyelevoltammetry(CV).Pt一CeO、/graPhiteeleetrodewerealsoeharaeterizedbyseanningeleetronmieroscoPy(SEM)andenergydisPersiveX一raysPeetroseoPy(EDS).Ontheotherhand，theeffeetofdifferentratioofPt:CeO、onthePerformaneeoftheeatalystwasinvestigated.TheresultsindieatethatthePt一Ceox/graPhiteeleetrodesho

7、wshighereleetrocatalytieaetivityandgoodlong一termeyelestabilityformethanoloxidation.2.Moox，anon一nobleseeondaryeatalystinsteadofnoblemetalRu，wasdisPersedonearbonnanotubes(CNT)andthenthePrimaryeatalystPtwaseleetrodePositedonMoox/CNT/graPhiteeleetrodebyPotential一stePmet