Re-Mg-Ni系合金储氢及电化学性能研究的开题报告-第一文库 | 海量文档资源下载与分享平台

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Re-Mg-Ni系合金储氢及电化学性能研究的开题报告Title:StudyonhydrogenstorageandelectrochemicalpropertiesofRe-Mg-NialloyIntroduction:Asapromisingenergycarrier,hydrogenhasattractedconsiderableattentioninrecentyearsduetoitshighenergydensityandcleanburningproperties.Oneofthekeychallengesofthehydrogeneconomyistodevelopefficientandcost-effectivehydrogenstoragematerials.Re-Mg-Nialloyisapotentialcandidateforhydrogenstorageduetoitshighhydrogenstoragecapacityandgoodthermalstability.Moreover,thealloyalsopossessesexcellentelectrochemicalproperties,makingitapromisingmaterialforrechargeablebatteriesandsupercapacitors.Inthisstudy,weaimtoinvestigatethehydrogenstorageandelectrochemicalpropertiesofRe-Mg-Nialloy,andtoexploreitspotentialapplicationsinhydrogenstorageandenergyconversion.Objectives:1.SynthesisofRe-Mg-Nialloywithdifferentcompositionratios2.CharacterizationofthestructuralandmorphologicalpropertiesofthealloyusingX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),andenergy-dispersiveX-rayspectroscopy(EDS)3.Investigationofthehydrogenstoragepropertiesofthealloythroughpressure-composition-temperature(PCT)measurements4.Analysisoftheelectrochemicalpropertiesofthealloyusingcyclicvoltammetry,galvanostaticcharge/dischargemeasurements,andelectrochemicalimpedancespectroscopy(EIS)5.CorrelationofthepropertiesofthealloywithitscompositionandmicrostructureMethodology:1.SynthesisofRe-Mg-Nialloywithdifferentcompositionratiosbyarcmeltingfollowedbyannealing2.StructuralandmorphologicalcharacterizationofthealloyusingXRD,SEM,andEDS3.MeasurementofthehydrogenstoragepropertiesofthealloybyPCTmeasurementsusingaSievertsapparatus4.Determinationoftheelectrochemicalpropertiesofthealloybycyclicvoltammetry,galvanostaticcharge/dischargemeasurements,andEISusingapotentiostat/galvanostat5.CorrelationofthepropertiesofthealloywithitscompositionandmicrostructureusingstatisticalanalysisExpectedoutcomes:1.IdentificationoftheoptimalcompositionofRe-Mg-Nialloyforhydrogenstorageandenergyconversion2.Understandingofthecorre