Stabilizing CoC with HO and K promoter for CO hydrogenation to C hydrocarbons.

The decomposition of cobalt carbide (CoC) to metallic cobalt in CO hydrogenation results in a notable drop in the selectivity of valued C products, and the stabilization of CoC remains a grand challenge. Here, we report an in situ synthesized K-CoC catalyst, and the selectivity of C hydrocarbons in CO hydrogenation achieves 67.3% at 300°C, 3.