Manipulating Copper Dispersion on Ceria for Enhanced Catalysis: A Nanocrystal-Based Atom-Trapping Strategy.

ABSTRACT: Due to tunable redox properties and cost-effectiveness, copper-ceria (Cu-CeO₂ ) materials have been investigated for a wide scope of catalytic reactions. However, accurately identifying and rationally tuning the local structures in Cu-CeO₂ have remained challenging, especially for nanomaterials with inherent structural complexities involving surfaces, interfaces, and defects. Here, a nanocrystal-based atom-trapping strategy to access atomically precise Cu-CeO₂ nanostructures for enhanced catalysis is reported. Driven by the interfacial interactions between the presynthesized Cu and CeO₂ nanocrystals, Cu atoms migrate and redisperse onto the CeO₂ surface via a solid-solid route. This interfacial restructuring behavior facilitates tuning

SUBMITTER: Sun Y 

PROVIDER: S-EPMC8922119 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature