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Ag基负载型催化剂上甲醛催化氧化的研究.docx

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Ag基负载型催化剂上甲醛催化氧化的研究 Title:CatalyticOxidationofFormaldehydeonAg-BasedSupportedCatalysts:AReview Abstract: Formaldehyde(HCHO)isavolatileorganiccompoundthathasbeenwidelyusedinvariousindustriesandhouseholdproducts,leadingtoitspresenceinindoorandoutdoorenvironments.However,HCHOisalsoarecognizedharmfulairpollutant,posingpotentialriskstohumanhealthandtheenvironment.Thus,thedevelopmentofefficientandselectivecatalyticoxidationtechnologiesfortheremovalofHCHOhasgainedsignificantattention.Amongvariouscatalysts,Ag-basedsupportedcatalystshaveshownpromisingpotentialinHCHOcatalyticoxidationduetotheiruniquecatalyticproperties.ThisreviewsummarizesrecentadvancesinthestudyofAg-basedsupportedcatalystsforHCHOcatalyticoxidation,includingthesynthesismethods,characterizationtechniques,reactionmechanisms,andfactorsaffectingthecatalyticperformance.ThefindingsprovidevaluableinsightsforthedesignanddevelopmentofefficientAg-basedcatalystsforHCHOremoval. 1.Introduction 1.1Backgroundandsignificance 1.2Objectivesofthereview 2.SynthesisMethodsofAg-BasedSupportedCatalysts 2.1Traditionalimpregnationmethod 2.2Deposition-precipitationmethod 2.3Sol-gelmethod 2.4Atomiclayerdepositionmethod 2.5Othersynthesismethods 3.CharacterizationofAg-BasedSupportedCatalysts 3.1Surfacestructureandcompositioncharacterization 3.2Surfaceareaandporositycharacterization 3.3Redoxpropertiescharacterization 3.4Morphologyandparticlesizecharacterization 4.ReactionMechanismsofHCHOCatalyticOxidationonAg-BasedCatalysts 4.1Directoxidationmechanism 4.2Oxidationviaintermediatespecies 4.3Synergisticeffectwithco-catalysts 5.FactorsAffectingtheCatalyticPerformance 5.1Catalystcompositionandloading 5.2Supportmaterials 5.3Reactionconditions 5.4Catalystpoisoninganddeactivation 6.RecentAdvancesinAg-BasedCatalystsforHCHOCatalyticOxidation 6.1Mono-metallicAg-basedcatalysts 6.2Bimetallicandmultimetalliccatalysts 6.3Supportmodificationstrategies 6.4HeterogeneouscatalystswithAgnanoparticles 7.ChallengesandOutlook 7.1Catalyststabilityanddurability 7.