Size –Controlled Synthesis of Ni-MgO nanoparticles in CO2- steam reforming of methane

The influence of Ni –MgO particle size on catalyst performance, product selectivity and coke formation insimultaneous steam and CO2 reforming of methane to syngas has been investigated.The Ni-MgO nanoparticles wereprepared by the incipient wetness impregnation method. In this work, the Ni-MgO particle sizes in the range of 7/13 to29/7 nm have been studied using well-defined Catalysts based on α-Al2O3 support.Experimental results indicated thatboth products selectivity’s and H2/CO ratio to be independent of Ni-MgO particle size. Nevertheless, formation rates onthe surface of catalyst are increased by increasing Ni-MgO particle size. In addition, the carbon atoms deposited on onesite of catalyst is shawn an opposite trend.

کلیدواژه ها:

CO2- steam reforming ، Ni- catalyst ، Methane ، syngas ، size dependent