Accelerating electrochemical CO₂ reduction to multi-carbon products via asymmetric intermediate binding at confined nanointerfaces.

ABSTRACT: Electrochemical CO₂ reduction (CO₂R) to ethylene and ethanol enables the long-term storage of renewable electricity in valuable multi-carbon (C₂₊) chemicals. However, carbon-carbon (C-C) coupling, the rate-determining step in CO₂R to C₂₊ conversion, has low efficiency and poor stability, especially in acid conditions. Here we find that, through alloying strategies, neighbouring binary sites enable asymmetric CO binding energies to promote CO₂-to-C₂₊ electroreduction beyond the scaling-relation-determined activity limits on single-metal surfaces. We fabricate experimentally a series of Zn incorporated Cu catalysts that show increased asymmetric CO* binding and surface CO* coverage for fast C-C coupling and the cons

SUBMITTER: Zhang J 

PROVIDER: S-EPMC9998885 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature