Carbon dioxide reforming of methane for syngas production over Co–MgO mixed oxide nanocatalysts

Abstract

Carbon dioxide reforming of methane (CH4+CO2↔2CO+2H2) was studied over nanostructure Co–MgO mixed oxide catalysts with different cobalt contents. The catalysts were prepared by co-precipitation method and characterized using XRD, BET, TEM, TPR, SEM and TPO techniques. The BET analysis showed a high specific surface area and mesoporous structure (pore sizes<15nm) and the TEM analysis indicated a nanostructure with crystallite sizes smaller than 10nm for the prepared catalysts. The obtained results revealed that the catalyst with cobalt content of 10wt.% had the highest activity and stability in dry reforming reaction.