ZnO基纳米棒阵列气敏材料合成与性能的开题报告Introduction:Zincoxide(ZnO)isawidelyusedsemiconductormaterialduetoitsuniquepropertiessuchashighchemicalstability,biocompatibility,andlowtoxicity.Inrecentyears,thesynthesisanduseofZnOnanorodshavegainedconsiderableattentionduetotheirhighsurfacearea-to-volumeratio,uniquemorphologies,andexcellentchemicalandmechanicalproperties.ZnOnanorodsareusedinvariousapplicationssuchasphotocatalysis,sensors,electronicdevices,andenergyharvesting.ThisstudyaimstosynthesizeZnOnanorodarraysasgas-sensingmaterialsandinvestigatetheirproperties.Objectives:TheaimofthisprojectistosynthesizeZnOnanorodarraysusingahydrothermalmethodandinvestigatetheirpropertiesforgassensingapplications.Thespecificobjectivesareasfollows:1.SynthesizeZnOnanorodarraysusingahydrothermalmethod.2.CharacterizethemorphologyandstructureofthesynthesizedZnOnanorodarraysusingscanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),andX-raydiffraction(XRD).3.Evaluatethegas-sensingpropertiesofthesynthesizedZnOnanorodarraystowardsvariousgasessuchasCO2,NH3,andNOx.Methodology:1.SynthesisofZnOnanorodarrays:TheZnOnanorodarrayswillbesynthesizedusingahydrothermalmethod.Azincnitratehexahydratesolutionwillbepreparedandusedastheprecursorforthesynthesis.ThesolutionwillbeplacedinaTeflon-linedstainlesssteelautoclaveandheatedataspecifictemperatureforaparticularperiodtoobtainZnOnanorodarrays.2.Characterization:ThesynthesizedZnOnanorodarrays'morphologyandstructurewillbecharacterizedusingSEM,TEM,andXRD.TheSEMandTEManalysiswilldeterminethemorphologyandsizeofthenanorods,whiletheXRDanalysiswillidentifytheircrystalstructureandphase.3.Gas-sensingproperties:Thegas-sensingpropertiesofthesynthesizedZnOnanorodarrayswillbeevaluatedbymeasuringtheelectricalresistancechangesuponexposuretovariousgasessuchasCO2,NH3,andNOx.Expectedoutcomes:1.Successfulsynthesisofwell-alignedZnOnanorodarraysusingahydrothermalmethod.2.CharacterizationofthesynthesizedZnOnanorodarrays'morphology,crystalstructure,andphaseusingSEM,TEM,a