Sodium-promoted bimetallic M-CoO x catalysts (M = In, Ga, Mo, Mn, and V) for the hydrogenation of CO 2 to C 2+ hydrocarbons

Abstract

In CO2 hydrogenation, Na-V-modified cobalt nanoparticles redirect the product distribution from methane to C2+ hydrocarbons. Sodium facilitates C-C chain propagation and suppresses methanation reaction, while vanadium enhances site dispersion and regulates the Co 0 /Co δ+ ratio, collectively driving the coupled reverse water-gas shift and Fischer-Tropsch synthesis reactions.