Dynamic Surface Restructuring Driven Formation of a Highly Polarized CO Species on a Defected Copper Surface.

ABSTRACT: The catalytic versatility of the copper surface calls for a fundamental understanding of the formation and reactivity of key intermediates in various C₁ catalytic conversions such as water-gas shift reaction, CO/CO₂ hydrogenation, and electrochemical reduction reactions. Here, based on in situ spectroscopic and morphological evidence, we demonstrate the formation of a bridge CO* species through the adsorption-induced restructuring of a defect-rich Cu surface and its reactivity toward C-O bond dissociation and C-C coupling under hydrogenation reaction conditions. In corroboration with computational simulations, we attribute the unexpected reactivity to its enhanced adsorption strength and polarity with respect to commonly observed on-top CO* species. Our findings provi

SUBMITTER: Cai J 

PROVIDER: S-EPMC12636024 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature