Nature of Catalytic Behavior of Cobalt Oxides for CO₂ Hydrogenation.

ABSTRACT: Cobalt oxide (CoO _x ) catalysts are widely applied in CO₂ hydrogenation but suffer from structural evolution during the reaction. This paper describes the complicated structure-performance relationship under reaction conditions. An iterative approach was employed to simulate the reduction process with the help of neural network potential-accelerated molecular dynamics. Based on the reduced models of catalysts, a combined theoretical and experimental study has discovered that CoO(111) provides active sites to break C-O bonds for CH₄ production. The analysis of the reaction mechanism indicated that the C-O bond scission of *CH₂O species plays a key role in producing CH₄. The nature of dissociating C-O bonds is attributed to the st

SUBMITTER: Li K 

PROVIDER: S-EPMC9975827 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature