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时间:2020-04-22
《纳米片聚结Co3O4微球催化甲苯燃烧-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、ChineseIournalofCatalysis35(2014)1475—1481催化学报2014年g35卷g9期lywwv~.chxb.cnaV{abIeat:wwwsc§n囊dl囊cm叠参量量曩委置叠誊誊誊量叠蔓。曩曩曩蠢:elCt_journal;horn舞pa彗孽wwweIVlIeom/lo/霉h日jArticleNanoplate-aggregateCo304microspheresfortoluenecombustionFangWang,HongxingDai,JiguangDeng,ShaohuaXie,HuanggenYang,W
2、enHanKeyLaboratoryofBeifingonRegionalAirPollutionControlandLaboratoryofCatalysisChemistryandNanoscience,DepartmentofChemistryandChemicalEngineering,CollegeofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beifing100124,ChinaARTICLEINF0ABSTRACTArticleh&tory:Nano
3、plate-aggregatemicrosphericalCo304waspreparedbyanethylenediamine-assistedhydro-Received28Ianuary2014thermalrouteandcharacterizedbymeansofnumeroustechniques.TheircatalyticactivitiesforAccepted3March2014toluenecombustionwereevaluated.TheCo304sampleobtainedusing1.0mlofethylenedia
4、minePublished20September2014andahydrothermaltreatmentat140。Cfor12hhadananoplate-aggregatemicrosphericalmot-phology.ThismicrosphericalCo304samplewithasurfaceareaof66mg一hadahigheradsorbedoxygenconcentrationandbetterlow-temperaturereducibilitythanbulkCo304.OvertheCo304Ke~vords:mi
5、crospheresample.thetemperaturesrequiredfor50%and90%tolueneconversionswere230Cobaltoxidemicrosphereand254。C,respectively,ataspacevelocityof20000mlg一h~.ThegoodcatalyticperformanceofNanoplatemorphologytheCo304microspheresamplewasrelatedtoitslargesurfacearea,highoxygenadspeciescon
6、cen—Surfactant—assistedhydrothermaltration.andgoodlow.temperaturereducibility.synthesis◎2014,DalianInstituteofChemicalPhysics,ChineseAcademyofSciences.ToluenecombustionPublishedbyElsevierB.V.Al1rightsreserved.1.IntroductionoxidationofVOCs.Forinstance,Co304nanoparticlesshowedgo
7、odactivityincatalyzingVOCoxidation[15].Xueetal_[16]Mostvolatileorganiccompounds(vocs)emittedfromin-observedasignificanteffectofCo304morphologyoncatalyticdustrialandtransportationactivitiesareharmfultotheenvi—activityofAu/Co304forethyleneoxidation.ronmentandhumanhealth.Catalyti
8、coxidationisoneofthePreviously,ourgrouphasusedsilica(SBA一16or
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