SDC–LiNa carbonate composite and nanocomposite electrolytes-2.pdf

SDC–LiNa carbonate composite and nanocomposite electrolytes-2.pdf

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时间:2019-03-20

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1、ARTICLEINPRESSinternationaljournalofhydrogenenergyxxx(2009)1–6Availableatwww.sciencedirect.comjournalhomepage:www.elsevier.com/locate/heSDC–LiNacarbonatecompositeandnanocompositeelectrolytesa,b,acd,ZhiguoTang*,QizhaoLin,Bengt-ErikMellander,BinZhu**aDepartm

2、entofThermalScienceandEnergyEngineering,UniversityofScienceandTechnologyofChina,JinzhaiRoad,Hefei230026,ChinabSchoolofMechanicalandAutomobileEngineering,HefeiUniversityofTechnology,Hefei230009,ChinacDepartmentofAppliedPhysics,ChalmersUniversityofTechnology

3、,GothenburgS-41296,SwedendDepartmentofEnergyTechnology,RoyalInstituteofTechnology,StockholmS-10044,SwedenarticleinfoabstractArticlehistory:StructuralandA.C.impedanceanalyseswereconductedforvariousceria-basedcompositeReceived13April2009systems.Structuralstu

4、diesshowedthattheceriacarbonatecompositesaretwo-phaseAccepted5May2009materials,wherecarbonateswereoftenamorphous.TwophasesofceriaandcarbonatesAvailableonline-aremixedatdifferentparticlesizelevelsdependingonthepreparationtechniques,especially,employingtheNA

5、NOCOFC(nanocompositesforadvancedfuelcelltechnology)Keywords:approachtoprepareceriaLiNaCO3nanocomposites.GeneralobservationsfromstructuralIntermediateandlowtemperatureanalysesarethatdifferentpreparationtechniquesresultedintwo-phasecompositesolidoxidefuelcel

6、lparticlesindifferentparticlesizesvaryingfrommicrometerleveltonano-levelaccom-Samariumdopedceria(SDC)panyingalsodifferenthomogeneity.GeneralobservationsfromimpedanceanalysesareCeria-basedcompositeelectrolytesthatforthenanocomposites(particlesizeatnano-scal

7、e)morecomplexgrainboundaryNanocompositesinterfaceeffectsareobservedcomparedtothatforsampleswithgrainsofthemicrometerInterfacelevel,butnanocompositesshowedenhancedconductivitiesatthelowtemperatures.Interfacesandinterfacialconductionmechanismcanbeconcludedfo

8、rsuchconductivityenhancement.CrownCopyrightª2009PublishedbyElsevierLtdonbehalfofInternationalAssociationforHydrogenEnergy.Allrightsreserved.1.IntroductionTherearemanyinherentcost-effectiveandmarket-competi-ti

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