Direct cleavage of C=O double bond in CO₂ by the subnano MoO_x surface on Mo₂N.

ABSTRACT: Compared to H₂-assisted activation mode, the direct dissociation of CO₂ into carbonyl (*CO) with a simplified reaction route is advantageous for CO₂-related synthetic processes and catalyst upgrading, while the stable C = O double bond makes it very challenging. Herein, we construct a subnano MoO₃ layer on the surface of Mo₂N, which provides a dynamically changing surface of MoO₃↔MoO_x (x < 3) for catalyzing CO₂ hydrogenation. Rich oxygen vacancies on the subnano MoO_x surface with a high electron donating capacity served as a scissor to directly shear the C = O double bond of CO₂ to form CO at a high rate. The O atoms leached in CO₂ dissociation are removed timely by H

SUBMITTER: Liu HX 

PROVIDER: S-EPMC11500354 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature