简介：AnanostructuredNiAPSO-34catalystwashydrothermallysynthesizedandtheeffectofthetemplate（diethylamine（DEA）,tetraethylammoniumhydroxide（TEAOH）andDEA/TEAOH）onthephysicochemicalpropertiesandcatalyticperformanceinthemethanoltoolefin（MTO）reactionwasinvestigated.ThesampleswerecharacterizedbyX-raydiffraction,fieldemissionscanningelectronmicroscopy（FESEM）,particlesizedistributionanalysis,energy-dispersiveX-rayspectroscopy,Brunauer-Emmett-TelleranalysisandFouriertransforminfraredspectroscopy.TheX-raydiffractionpatternsindicatedahighercrystallinityandlargercrystallitesizeforthecatalystsynthesizedusingtheDEAtemplate.TheFESEMresultsindicatedthatthenatureofthetemplatecouldaffectthemorphologyofthenanostructuredNiAPSO-34catalystbecauseofitseffectontherateofcrystalgrowth.ThecatalyticperformanceofthesampleswasstudiedintheMTOreactionatatmosphericpressureandaspacevelocityof4200cm3/(gh-1)inafixedbedreactor.ThestabilityandactivityoftheNiAPSO-34catalystwereimprovedusingtheDEAtemplatebecauseofitshighercrystallinity,surfaceareaandthegreaterextentofNiincorporationintoitsframework.ThepossiblestagesofsynthesisandthereactionmechanismfortheMTOprocessoverNiAPSO-34arediscussedindetail.