Reversal of methanation-oriented to RWGS-oriented Ni/SiO2 catalysts by the exsolution of Ni2+ confined in silicalite-1

Ni/SiO 2 -based catalysts derived from the reduction of silicalite-1-encapsulated, ligand-protected Ni 2+ was found to be effective in the selective hydrogenation of CO 2 to CO via the reverse water-gas shift (RWGS).