No abstract

No abstract

The effect of the distribution of CeO 2 -ZrO 2 on Ni/MgAl 2 O 4 catalyst on the catalytic performance during the combined steam and carbon dioxide reforming of CH 4 (CSCR) was investigated on two different catalysts prepared using a sequential impregnation and co-precipitation of Ni and CeO 2 -ZrO 2 components. The CeO 2 -ZrO 2 plays an important role in the CO 2 conversion by enhancing a facile activation of CO 2 with an adjacent contact with nickel crystallites. The CSCR catalysts prepared by the co-precipitation of nickel and CeO 2 -ZrO 2 on MgAl 2 O 4 support shows a catalytic activity superior to the catalyst prepared by sequential impregnation of nickel on the MgAl 2 O 4 support with CeO 2 -ZrO 2 due to the homogeneous distribution of CeO 2 -ZrO 2 with the formation of small nickel crystallites and a large amount of active sites for CO 2 adsorption.