Partial oxidation of methane to syngas over mesoporous Co-Al2O3 catalysts

Abstract Mesoporous Co-Al 2 O 3 catalysts were prepared by one-pot synthesis and, for the first time, used in the partial oxidation of methane to synthesis gas. Compared with the catalysts prepared by impregnation methods, the catalysts prepared by one-pot synthesis showed superior catalytic performance for this reaction. The results showed that mesoporous Co-Al 2 O 3 catalysts have high surface areas, large pore volumes, and an ordered hexagonal mesostructure. In the catalysts, Co species are highly dispersed, resulting in high dispersion of the metal after reduction. A confinement effect, provided by the mesopores, on metal nanoparticles could effectively enhance resistance to metal sintering.