from first principles PP-I-1

PP-II-18Preparation and Characterization of Nanosized Ni-Co/Al 2 O 3 CatalystsPrepared by Polyol Method for Partial Oxidation of MethaneÇınar T., Altınçekiç T.G., Öksüzömer M.A.Department of Chemical Engineering,Istanbul University,34320,Istanbul,Turkeytubag@istanbul.edu.trExtensive studies are being undertaken in academia as well as in industry to develop energyefficientprocesses for production of hydrogen. Eventually catalytic partial oxidation processcame out to be prominent as a good alternative Methane is referred to be the most significantsource of hydrocarbon as it is the major component of natural gas and natural gas exists onearth profusely. Even though noble metals are relatively stable and active in catalytic partialoxidation process[1], high cost and limited access to those metals made Ni and Co basedcatalysts as best alternative in catalytic partial oxidation of methane . In order to improvethese problems, in contradistinction to traditional catalyst preparing methods Ni-Co bimetalliccatalysts were successfully prepared by polyol method on alumina support in the presence ofprotecting agent. CoNi alloy particles as a ferromagnetic metal-based materials weresynthesized via polyol process [2] but the reduction of Ni(Ac) 2 and Co(Ac) 2 in ethyleneglycol for the preparation of spherical bimetallic nickel-cobalt nanoparticles supported on γ-Al 2 O 3 as a catalyst has not been studied. The weight ratio of [(PVP)]/metal] was fixed at 2.The crystal structure was determined by X-Ray diffractogram. The results indicate that theNiCo (fcc) phases are dominant. Also in terms of characterization studies of those catalystsTG-DTA, HRTEM, BET, TPD and AAS analysis will be performed. The activity, selectivityand stability tests of catalysts for partial oxidation of methane will be made on GC-MicroreactorSystem existing in our laboratories. Al 2 O 3CoNi (111)Intensity (a.u.)CoNi (200)CoNi (220)10 20 30 40 50 60 70 80 90 100[1] Ji, Y.; Li, W.; Xu, H.; Chen, Y.; Applied Catalysis, 2001, 213, 25-31.[2] Gutierrez, J.B.; Saldivar,-Garcia, A.J.; Lopez, H.F.; Materials Letters, 2008, 62, 939-9422 169