Unraveling surface sensitivity for generating metastable active sites in molybdenum-based catalysts for CO₂ hydrogenation.

ABSTRACT: The reverse water-gas shift (RWGS) reaction is crucial for sustainable CO₂ conversion, yet catalyst surface remodeling at high temperatures remains a complex and pivotal phenomenon. This study investigates the complex relationship between surface reconstruction and catalytic performance using a series of molybdenum-based catalysts, which can generate different catalytic MoO₃ surface layers under RWGS conditions. In-situ characterization techniques and theoretical analyses reveal that the MoO₃ layer on MoO₃/MoO₂-C and MoO₃/Mo₂N-C is in-situ reduced to MoO₂ and metastable MoO_x (2 3/Mo₂C-C during the catalysis process. Th

SUBMITTER: Feng Y 

PROVIDER: S-EPMC12722216 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature