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1、TheapplicationofscanningelectrochemicalmicroscopytothediscoveryofPd–Welectrocatalystsfortheoxygenreductionreactionthatdemonstratehighactivity,stability,andmethanoltoleranceWenpengLi,Fu-RenF. Fan&AllenJ. BardJournalofSolidStateElectrochemistryCurrentResearchandDevelopmentinSciencean
2、dTechnologyISSN1432-8488JSolidStateElectrochemDOI10.1007/s10008-012-1775-7123YourarticleisprotectedbycopyrightandallrightsareheldexclusivelybySpringer-Verlag.Thise-offprintisforpersonaluseonlyandshallnotbeself-archivedinelectronicrepositories.Ifyouwishtoself-archiveyourwork,pleaseu
3、setheacceptedauthor’sversionforpostingtoyourownwebsiteoryourinstitution’srepository.Youmayfurtherdeposittheacceptedauthor’sversiononafunder’srepositoryatafunder’srequest,provideditisnotmadepubliclyavailableuntil12monthsafterpublication.123Author'spersonalcopyJSolidStateElectrochemD
4、OI10.1007/s10008-012-1775-7ORIGINALPAPERTheapplicationofscanningelectrochemicalmicroscopytothediscoveryofPd–Welectrocatalystsfortheoxygenreductionreactionthatdemonstratehighactivity,stability,andmethanoltoleranceWenpengLi&Fu-RenF.Fan&AllenJ.BardReceived:19April2012/Revised:8May2012
5、/Accepted:9May2012#Springer-Verlag2012AbstractAnarrayofPd–Walloyswasfabricated,andthe[6,7]havebeenstudied,mostofthePEMFCcathodesarestillelectrocatalyticactivityofthealloysfortheoxygenreduc-Pt-basedmaterials[8],ametalthatisexpensiveandnottionreaction(ORR)inacidicmediawasscreenedbysc
6、an-abundant.Thus,furtherimprovementwillrequirethedevel-ningelectrochemicalmicroscopy.ThePd0.7W0.3showedtheopmentofORRcatalyststhataremoreactiveandbasedonhighestactivityfortheORR,closetothatforPd0.8Co0.2andabundantmaterials.AnotherconsiderationisthetoleranceofPt.APd–Welectrocatalyst
7、loadedoncarbonblackwasthecathodematerialtoareactantthatcrossesoverfromtheformedbytheNaBH4-reductionmethod,exhibitinghighanode,suchasmethanolinthedirectmethanolfuelcell,ortoaactivityandstability,suggestingthatitisagoodcandidatecontaminantintheairfeed.fortheprotonexchangemembranefuel
8、cellcathode.Inthediscovery
