简介：Compositematerials(AZ-x)werepreparedbymixingthenanosizedHYzeoliteandγ-Al2O3usingthesol-gelmixingmethodandwereemployedasthesupportforNiMocatalysts(NiMo/AZ-x).ThesecompositesandcatalystswerecharacterizedbyXRD,BET,TPD,TPR,HRTEMandFT-IRspectroscopy.ComparedwiththeNiMocatalystsupportedonγ-Al2O3(NiMo/γ-Al2O3),theseNiMo/AZ-xcatalystsshowhigheractivityinthehydrodesulfurization(HDS)ofFCCdiesel,andtheHDSactivityincreaseswithanincreasingHYmasscontentinthecomposites,providedthattheHYmassfractiondoesnotexceed20%.Comparedwithγ-Al2O3,theintroductionofnanosizedHYzeolitecanimprovetheporousstructureofthecomposites,whichcanbenefitthemasstransferofthereactantmolecules.Furthermore,thenanosizedHYzeoliteinthecompositescanmodifytheirsurfacepropertieswhichwouldincreasetheratioofmetalspeciestobetransformedintoreduciblephaseinlowtemperatureregionandmodifythemorphologyoftheMoS2phasestoformmoremulti-stackedMoS2activephaseswithincreaseddispersionofedgesandcornersofMoatoms.