Stabilization of oxidized Cu species via CeO <i>_x</i> nano-islands for enhanced CO₂ reduction to C₂₊ products.

ABSTRACT: The presence of oxidized copper species (CuO _x ) on metallic Cu surfaces is widely acknowledged as a critical factor for promoting C-C coupling during the CO₂ reduction reactions (CO₂RR). However, the inherent instability of CuO _x under negative potentials, where it is prone to reduction to metallic Cu, remains a formidable challenge. In this study, we developed a CeO _x -modified CuO catalyst for the CO₂RR, featuring CeO _x uniformly distributed as isolated nano-islands on CuO nanoparticles. Upon reduction of the CuO matrix to metallic Cu, the CeO _x layer effectively stabilizes the interfacial CuO _x , preventing its further reduction. Operando c

SUBMITTER: Wei M 

PROVIDER: S-EPMC12547411 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature