预览加载中，请您耐心等待几秒...

利用时间切片离子速度成像技术对AlO在193nm的光解反应动力学研究（英文）.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

利用时间切片离子速度成像技术对AlO在193nm的光解反应动力学研究（英文） Title:InvestigationofthePhotodissociationDynamicsofAlOat193nmUsingTime-SlicedIonVelocityImagingTechnique Abstract: Thephotodissociationdynamicsofaluminummonoxide(AlO)ataphotolysiswavelengthof193nmwasinvestigatedusingthetime-slicedionvelocityimagingtechnique.Byprobingtheionicfragmentsresultingfromthephotodissociationprocess,wewereabletoobtainvaluableinsightsintotheunderlyingreactionmechanismsanddynamics.Thisstudyprovidesvaluableinformationforunderstandingphotodissociationprocessesandtheirimpactonatmosphericchemistry. Introduction: Photodissociationreactionsplayavitalroleinatmosphericchemistryandimpactvariousenvironmentalprocesses.Aluminummonoxide(AlO)isakeyspeciesintheEarth'satmosphere,anditsphotodissociationdynamicsareofsignificantinterest.Inthisstudy,weemployedthetime-slicedionvelocityimagingtechniquetoinvestigatethereactionkineticsanddynamicsofAlOphotodissociationatawavelengthof193nm.Thistechniqueallowsustoobtainvaluableinformationaboutthespeedsandanglesoftheresultingionicfragments,providingadeeperunderstandingofthereactiondynamics. ExperimentalMethodology: Theexperimentalsetupconsistedofamolecularbeamsourcecoupledwithahigh-resolutionionimagingspectrometer.AsupersonicexpansionofAlOgaswascreated,andthemolecularbeamwasintersectedwithapulsedlaserbeamatawavelengthof193nm.Theresultingphotofragmentswereionizedusingapulsedelectricfield,andtheirvelocitiesweremappedontoatwo-dimensionaldetector. ResultsandDiscussion: Thetime-slicedionvelocityimagingtechniqueprovideddetailedinformationaboutthephotodissociationdynamicsofAlO.Theresultantionimagesallowedustodeterminethetranslationalenergiesandanglesoftheionicfragments,andtheirdistributionswereanalyzedtoextractthereactionpathwaysandmechanisms.ThekineticenergiesandangulardistributionsoftheresultingionsprovidedvaluableinsightsintothedissociationchannelsandenergeticpathwaysoftheAlOphotodissociationprocess. Theobservedionvelocitypatternsindicatedsignificantcontributionsfrombothdirectandindirect