Design and synthesis of palladium-graphitic carbon nitride-carbon black hybrids as high-performance catalysts for formic acid and methanol electrooxidation.pdf

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1、JournalofPowerSources275(2015)734e741ContentslistsavailableatScienceDirectJournalofPowerSourcesjournalhomepage:www.elsevier.com/locate/jpowsourDesignandsynthesisofpalladium/graphiticcarbonnitride/carbonblackhybridsashigh-performancecatalystsforformicacidandmethanolelectrooxidation11*HuayuQian,Hu

2、ajieHuang,XinWangKeyLaboratoryforSoftChemistryandFunctionalMaterialsofMinistryEducation,NanjingUniversityofScienceandTechnology,210094Nanjing,ChinahighlightsgraphicalabstractAPd/g-C3N4/carbonblackhybridisdesignedandsynthesized.Thehybridshowsexcellentcatalyticactivityforformicacidandmethanolele

3、ctrooxidation.Thecatalystalsoexhibitsunusualpoisontoleranceandreliablestability.articleinfoabstractArticlehistory:Herewereportafaciletwo-stepmethodtosynthesizehigh-performancepalladium/graphiticcarbonReceived17August2014nitride/carbonblack(Pd/g-C3N4/carbonblack)hybridsforelectrooxidizingformica

4、cidandmethanol.TheReceivedinrevisedformcoatingofg-C3N4oncarbonblacksurfaceisrealizedbyalow-temperatureheatingtreatment,followed12October2014bytheuniformdepositionofpalladiumnanoparticles(PdNPs)viaawetchemistryroute.OwningtotheAccepted20October2014significantsynergisticeffectsoftheindividualcompon

5、ents,thepreferredPd/g-C3N4/carbonblackelec-Availableonline12November2014trocatalystexhibitsexceptionalforwardpeakcurrentdensitiesashighas2155and1720mAmg1forPdformicacidoxidationinacidmediaandmethanoloxidationinalkalinemedia,respectively,farout-Keywords:performingthecommercialPd-Ccatalyst.Thecat

6、alystalsoshowsreliablestability,demonstratingthatCarbonblackGraphiticcarbonnitridethenewly-designedhybridshavegreatpromiseinconstructinghigh-performanceportablefuelcellPalladiumsystems.Directformicacidfuelcells©2014ElsevierB.V.Allrightsreserved.Directmethanolfuelcells1.Introductionconversioneffic

7、iency,lowworkingtemperature,lowpollutantemissionandeaseofhandlingandprocessingoftheliquidfuels[2].Asenvironmentallyfriendlypowersources,fuelcellsareoneofPlatinumisthemostefficientandcommonlyusedelectro-themostpromisingsources