简介：Co-basedcatalystswerepreparedbyusingdielectric-barrierdischarge(DBD)plasmaasanalternativemethodtoconventionalthermalcalcination.ThecharacterizationresultsofN2-physisorption,temperatureprogrammedreduction(TPR),transmissionelectronmicroscope(TEM),andX-raydiffraction(XRD)indicatedthatthecatalystspreparedbyDBDplasmahadahigherspecificsurfacearea,lowerreductiontemperature,smallerparticlesizeandhighercobaltdispersionascomparedtocalcinedcatalysts.TheDBDplasmamethodcanpreventthesinteringandaggregationofactiveparticlesonthesupportduetothedecreasedtreatmenttime(0.5h)atlowertemperaturecomparedtothelongerthermalcalcinationathighertemperature(at500℃for5h).Asaresult,thecatalyticperformanceoftheFischer-TropschsynthesisonDBDplasmatreatedCo/SiO2catalystshowedanenhancedactivity,C5+selectivityandcatalyticstabilityascomparedtotheconventionalthermalcalcinedCo/SiO2catalyst.