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记者yahua liu期科技英语交流.pptx

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Reporter:YahuaLiuDate:2015.11.04EmbeddingSulfonatedLithiumIon-sievesintoPolyelectrolyteMembranetoConstructEfficientProtonConductionPathways1

ContentsExperimentalResultsanddiscussionIntroductionConclusion12342

IntroductionEnergyCrisis!Environmentalpollution!3

FuelCellHighenergyefficiency90%Environment-benign~0IntroductionFuelcellisrecognizedasthe21thcenturyfirst-choicecleanandefficientpowergenerationtechnology.4

IntroductionTheelectrolyteofprotonexchangemembranefuelcell(PEMFC)isprotonexchangemembrane(PEM).PEMisthecorecomponentofPEMFC.PEMHighprotonconductivity(0.01Scm-1)Lowfuelcrosser(methanol10-6cm2s)SufficientstructuralstabilitySuitableprice-to-performanceratio5

HowProtonTransfer?BVehiclemechanismAGrotthussmechanismContinuousprotontransferpathwaySuitablechemicalenvironmentHighProtonConductivityConstructingprotontransferpathwayOptimizingprotonhoppingsitesIntroduction6AB

IntroductionCrystalstructureofLithiumion-sieveprecursorsLiMnOAcidtreatmentHMOExtractionofLi+andinsertionofH+HLMOLiMnOUniqueinnerion-channelsAdditionalhoppingsitesAcid-basepairsSchematicdepictionoftheprotontransportpathwayswithinhybridmembranes7

2.Chitosan(CS)1.Lithiumion-sieveprecursors(LMOs)LiMnO8Experimental

ExperimentalFlowsheetshowingthesynthesisprocessofSHMOs.9

Experimental10Flowsheetshowingthepreparationofhybridmembranes.StirringSonication

11Chemicalconstitution/MicrostructureSEMFTIRThermalstabilityTGADACXRDCrystallizationpropertyPerformanceProtonconductivityCellperformanceExperimentalCharacterizationofinorganicfillersandmembranes

ResultsanddiscussionFTIRTGA12TEMofinorganicfillersB-SHMOsL-SHMOsHMOsHMOsLMOs

ResultsanddiscussionCSCS/HMO-9CS/L-SHMO-9CS/B-SHMO-9SEMimagesofcross-sectionofpreparedmembranesFTIRXRD13

ResultsanddiscussionTGADSC14Sufficientthermalstabilityfor

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