Metal-Support Interaction and Charge Distribution in Ceria-Supported Au Particles Exposed to CO.

ABSTRACT: Understanding how reaction conditions affect metal-support interactions in catalytic materials is one of the most challenging tasks in heterogeneous catalysis research. Metal nanoparticles and their supports often undergo changes in structure and oxidation state when exposed to reactants, hindering a straightforward understanding of the structure-activity relations using only ex situ or ultrahigh vacuum techniques. Overcoming these limitations, we explored the metal-support interaction between gold nanoparticles and ceria supports in ultrahigh vacuum and after exposure to CO. A combination of in situ methods (on powder and model Au/CeO₂ samples) and theoretical calculations was applied to investigate the gold/ceria interface and its reactivity toward CO exposure. X-ray photoelec

SUBMITTER: Bezkrovnyi O 

PROVIDER: S-EPMC9476549 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature