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OALib Journal期刊
ISSN: 2333-9721
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anodicoxidationofformicacidonpdauir/c-sb2o5·sno2electrocatalystspreparedbyborohydridereduction
, PP. 851-857
a., o., neto, j., nandenha, r., f., b., de, souza, g., sbuzzo, j., c., m., silva, e., v., spinacé, m., h., m., t., assump？？o
Keywords: pdauir/c-sb2o5·,sno2electrocatalysts,formicacidoxidation,fuelcell,borohydridereductionprocess
Abstract:
？pdauir/c-sb2o5·sno2electrocatalystswithpd：au：irmolarratiosof90：5：5，70：20：10and50：45：5werepreparedbyborohydridereductionmethod.theseelectrocatalystswerecharacterizedbyedx，x-raydiffraction，transmissionelectronmicroscopyandthecatalyticactivitytowardformicacidelectro-oxidationinacidmediuminvestigatedbycyclicvoltammetry（cv），chroamperometry（ca）andtestsondirectformicacidfuelcell（dfafc）at100℃.x-raydiffractogramsofpdauir/c-sb2o5·sno2electrocatalystsshowedthepresenceofpdfccphase，pd-aufccalloys，carbonandatophases，whileirphaseswerenotobserved.temmicrographsandhistogramsindicatedthatthenanoparticleswerenotwelldispersedonthesupportandsomeagglomerates.thecyclicvoltammetryandchroamperometrystudiesshowedthatpdauir/c-sb2o5·sno2（50：45：5）hadsuperiorperformancetowardformicacidelectro-oxidationat25℃comparedtopdauir/c-sb2o5·sno2（70：20：10），pdauir/c-sb2o5·sno2（90：5：5）andpd/c-sb2o5·sno2electrocatalysts.theexperimentsinasingledfafcalsoshowedthatallpdauir/c-sb2o5·sno2electrocatalystsexhibitedhigherperformanceforformicacidoxidationincomparisonwithpd/c-sb2o5·sno2electrocatalysts，howeverpdauir/c-sb2o5·sno2（90：5：5）hadsuperiorperformance.theseresultsindicatedthattheadditionofauandirtopdfavortheelectro-oxidationofformicacid，whichcouldbeattributedtothebifunctionalmechanism（thepresenceofato，auandiroxidesspecies）associatedtotheelectroniceffect（pd-aufccalloys）.
| [1] | marinsekm,salam,jancarb.astudytowardssuperiorcarbonnanotubes-supportedpd-basedcatalystsforformicacidelectro-oxidation:preparation,propertiesandcharacterization[j].jpowersources,2013,235:111-116.
|
| [2] | nandenhaj,desouzarfb,assumpçãomhmt,spinacéev,netoao.preparationofpdau/c-sb2o5·sno2electrocatalystsbyborohydridereductionprocessfordirectformicacidfuelcellionics[j].inoics,2013,19(9):1207-1213.
|
| [3] | fengl,yaos,zhaox,yanl,liuc,xingw.electrocatalyticpropertiesofpd/ccatalystforformicacidelectrooxidationpromotedbyeuropiumoxide[j].jpowersources,2012,197:38-43.
|
| [4] | nandenhaj,desouzarfb,assumpçãomhmt,spinacéev,netoao.electro-oxidationofformicacidonpdir/c-sb2o5·sno2electrocatalystspreparedbyborohydridereduction[j].intjelectrochemsci,2013,8:9171-9179.
|
| [5] | lul,shenl,shay,chent,jiangg,gec,tangy,cheny,lut.newinsightsintoenhancedelectrocatalyticperformanceofcarbonsupportedpd-cucatalystforformicacidoxidation[j].electrochimacta,2012,85:187-194.
|
| [6] | wangx,tangyw,gaoy,luth.carbon-supportedpd-ircatalystasanodiccatalystindirectformicacidfuelcell[j].jpowersources,2008,175(2):784-788.
|
| [7] | aldenlr,handk,matsumotof,abrunad,disalvofj.intermetallicptpbnanoparticlespreparedbysodiumnaphthalidereductionofmetal-organicprecursors:electrocatalyticoxidationofformicacid[j].chemmater,2006,18(23):5591-5596.
|
| [8] | zhouwj,leejy.highlyactivecore-shellau@pdcatalystforformicacidelectrooxidation[j].electrochemcommun,2007,9(7):1725-1729.
|
| [9] | wangrf,liaosj,jis.highperformancepd-basedcatalystsforoxidationofformicacid[j].jpowersources,2008,180(1):205-208.
|
| [10] | yangg,cheny,zhouy,tangy,lut.preparationofcarbonsupportedpd-pcatalystwithhighcontentofelementphosphorusanditselectrocatalyticperformanceforformicacidoxidation[j].electrochemcommun,2010,12(3):492-495.
|
| [11] | wangr,wangh,fengh,jis.palladiumdecoratednickelnanoparticlessupportedoncarbonforformicacidoxidation[j].intjelectrochemsci,2013,8:6068-6076.
|
| [12] | chiouyj,chenky,linhm,liouwj,liouhw,wush,mikolajczuka,mazurkiewiczm,malolepszya,stobinskil,borodzinskia,kedzierzawskip,kurzydlowskik,chiensh,chenwc.electrocatalyticpropertiesofhybridpalladiumgold/multi-walledcarbonnanotubematerialsinfuelcellapplications[j].physstatussolidia,2011,208(8):1778-1782.
|
| [13] | panc,liy,may,zhaox,zhangq.platinum-antimonydopedtinoxidenanoparticlessupportedoncarbonblackasanodecatalystsfordirectmethanolfuelcells[j].powersources,2011,196(15):6228-6231.
|
| [14] | wux,scottk.ruo2supportedonsb-dopedsno2nanoparticlesforpolymerelectrolytemembranewaterelectrolysers[j].intjhydrogenenergy,2011,36(10):5806-5810.
|
| [15] | liuh,songc,zhangl,zhangj,wangh,wilkinsondp.areviewofanodecatalysisinthedirectmethanolfuelcel[j].jpowersources,2006,155(2):95-110.
|
| [16] | luxkw,cairnsej.lanthanide-platinumintermetalliccompoundsasanodeelectrocatalystsfordirectethanolpemfuelcells:i.synthesisandcharacterizationoflnpt2(ln=ce,pr)nanopowders[j].jelectrochemsoc,2006,153(6):a1132-a1138.
|
| [17] | delimef,legerjm,lamyc.optimizationofplatinumdispersioninpt-pemelectrodes:applicationtotheelectrooxidationofethanol[j].japplelectrochem,1998,28:27-35.
|
| [18] | netoao,brandalisem,diasrr,ayoubjms,silvaac,penteadojc,linardim,spinaceev.theperformanceofptnanoparticlessupportedonsb2o5·sno2,oncarbonandonphysicalmixturesofsb2o5·sno2andcarbonforethanolelectro-oxidation[j].intjhydrogenenergy,2010,35(17):9177-9181.
|
| [19] | ayoubjms,desouzarfb,silvajcm,piasentinrm,spinacéev,santosmc,netoao.ethanolelectro-oxidationonptsn/c-atoelectrocatalysts[j].intjelectrochemsci,2012,7:11351-11362.
|
| [20] | piasentinrm,spinaceev,tusimm,netoao.preparationofpdptsn/c-sb2o5.sno2electrocatalystsbyborohydridereductionforethanolelectro-oxidationinalkalinemedium[j].intjelectrochemsci,2011,6:2255-2263.
|
| [21] | brandalisem,tusimm,piasentinrm,dossantosmc,spinacev,netoao.synthesisofpdau/candpdaubi/celectrocatalystsbyborohydridereductionmethodforethyleneglycolelectro-oxidationinalkalinemedium[j].intjelectrochemsci,2012,7:9609-9621.
|
| [22] | zhuld,zhaots,xujb,liangzx.preparationandcharacterizationofcarbon-supportedsub-monolayerpalladiumdecoratedgoldnanoparticlesfortheelectro-oxidationofethanolinalkalinemedia[j].jpowersources,2009,187(1):80-84.
|
| [23] | ribeiroj,dosanjosdm,kokohkb,coutanceauc,légerjm,olivip,deandradear,tremiliosi-filhog.carbon-supportedternaryptsnircatalystsfordirectethanolfuelcell[j].electrochimicaacta,2007,52(24):6997-7006.
|
| [24] | germainps,pellwg,conwaybe.evaluationandoriginsofthedifferencebetweendouble-layercapacitancebehaviouratau-metalandoxidizedausurfaces[j].electrochimacta,2004,49(11):1775-1788.
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