无Co型La-Mg-Ni基合金贮氢性能的研究(英文)

无Co型La-Mg-Ni基合金贮氢性能的研究(英文)Title: Study on the Hydrogen Storage Performance of Co-Doped La-Mg-Ni-base

CoLa-Mg-Ni() 无型基合金贮氢性能的研究英文 Title:StudyontheHydrogenStoragePerformanceof Co-DopedLa-Mg-Ni-basedAlloys Abstract: Hydrogenstoragematerialshavegainedsignificantinterestin recentyearsduetotheirpotentialapplicationincleanand efficientenergystoragesystems.Amongvarioushydrogen storagealloys,La-Mg-Ni-basedalloyshaveshownpromising hydrogenstorageperformance.Inthisstudy,weinvestigatedthe effectofCodopingonthehydrogenstoragepropertiesof La-Mg-Ni-basedalloys.Thehydrogenstoragecapacity,kinetics, andstabilityofthealloyswereexaminedtounderstandthe influenceofCoadditiononimprovingtheoverallhydrogen storageperformance. 1.Introduction(200words) Thesearchforefficienthydrogenstoragematerialshas becomeessentialforthedevelopmentofhydrogen-basedenergy systems.La-Mg-Ni-basedalloyshaveattractedconsiderable attentionduetotheirhighhydrogenstoragecapacity,abundance, lowcost,andcapabilitytoreversiblyabsorbanddesorbhydrogen. However,thepracticalapplicationofLa-Mg-Ni-basedalloysis hamperedbysomelimitations,includingslowhydrogen absorption/desorptionkineticsandpoorcyclingstability.Inrecent years,severalstudieshavefocusedonalloyingelementsto improvethehydrogenstorageperformanceofLa-Mg-Ni-based alloys.OnepromisingalloyingelementisCo,whichhasbeen foundtoenhancethekineticsandstabilityofhydrogen absorption/desorptioninvarioushydrogenstoragesystems. 2.ExperimentalMethods(200words) TheLa-Mg-Ni-basedalloysdopedwithdifferentamountsof Cowerepreparedusingaconventionalarc-meltingtechnique. Themicrostructureofthealloyswascharacterizedusingscanning electronmicroscopy(SEM)andX-raydiffraction(XRD).The hydrogenstorageproperties,includingthehydrogenabsorption kineticsandcapacity,wereevaluatedusinganautomaticSievert's apparatus.Thecyclingstabilityofthealloyswasinvestigatedby