Activating dynamic atomic-configuration for single-site electrocatalyst in electrochemical CO₂ reduction.

ABSTRACT: One challenge for realizing high-efficiency electrocatalysts for CO₂ electroreduction is lacking in comprehensive understanding of potential-driven chemical state and dynamic atomic-configuration evolutions. Herein, by using a complementary combination of in situ/operando methods and employing copper single-atom electrocatalyst as a model system, we provide evidence on how the complex interplay among dynamic atomic-configuration, chemical state change and surface coulombic charging determines the resulting product profiles. We further demonstrate an informative indicator of atomic surface charge (φ_e) for evaluating the CO₂RR performance, and validate potential-driven dynamic low-coordinated Cu centers for performing significantly high selectivity and activi

SUBMITTER: Hsu CS 

PROVIDER: S-EPMC10462635 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature