SDC-carbonate composite electrolytes for low-temperature SOFCs外文学习资料.pdf

SDC-carbonate composite electrolytes for low-temperature SOFCs外文学习资料.pdf

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1、ElectrochemicalandSolid-StateLetters,89A437-A4402005A4371099-0062/2005/89/A437/4/$7.00©TheElectrochemicalSociety,Inc.SDC-CarbonateCompositeElectrolytesforLow-TemperatureSOFCszJianbingHuang,ZongqiangMao,LizhaiYang,andRanranPengInstituteofNuclearandNewEnergyTechnology

2、,TsinghuaUniversity,100084,Beijing,ChinaNovelcompositematerialsbasedonmixturesofsamarium-dopedceriaSDC-carbonatewereexaminedforuseaselectrolytematerialsinlow-temperaturesolidoxidefuelcellsLTSOFCsoperatingat400-600°C.Thecompositeelectrolytesshowedhighionconductivityate

3、valuatedtemperatures.Compositionandcalcinationtemperaturewerefoundtoaffectthemorphologyandconductivityofthecompositeelectrolytesgreatly.Duringfuelcelloperation,waterwasobservedatbothelectrodes,indicatingthatthenewelectrolytematerialsconductbothoxygenionsandprotonsimultane

4、ously.Accordingtofuelcellperformance,thesecompositeelectrolytesarechemicallystable,whichisanattractiveprospectinLTSOFCapplications.©2005TheElectrochemicalSociety.DOI:10.1149/1.1960139Allrightsreserved.ManuscriptsubmittedJanuary8,2005;revisedmanuscriptreceivedApril21,200

5、5.AvailableelectronicallyJuly18,2005.Low-temperaturesolidoxidefuelcellsLTSOFCshavereceivedpasteontoeithersideofthepellets,andheatedat600°Cfor40min.muchattentioninrecentyearsbecausetheymaydramaticallycon-Electricalconductivityofthepelletsampleswasthenmeasuredintributetot

6、hereductioninthecostofSOFCtechnology,inwhichairbyacimpedancespectroscopyatthetemperaturebetween400inexpensivematerialscanbeusedincellconstructionandnoveland650°C.ThemeasurementswereconductedusingaPerkinElmerfabricationtechniquescanbeappliedtothestackandsysteminte-5210freq

7、uencyresponseanalyzer0.5Hzto120KHzcombinedgrationsduetothelowoperatingtemperature.Moreover,thesystemwithEG&GPARpotentiostat/galvanostat263A.reliability,lifespan,andpotentialapplicationsofSOFCsystemin-ThepowderX-raydiffractionXRDpatternsofthecompositecrease.However,con

8、ventionalyttrium-stabilizedzirconiaYSZelectrolyteswererecordedatroomtemperatureusingaD8diffrac

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