Electrocatalytic CO₂ reduction to alcohols by modulating the molecular geometry and Cu coordination in bicentric copper complexes.

ABSTRACT: Electrocatalytic reduction of CO₂ into alcohols of high economic value offers a promising route to realize resourceful CO₂ utilization. In this study, we choose three model bicentric copper complexes based on the expanded and fluorinated porphyrin structure, but different spatial and coordination geometry, to unravel their structure-property-performance correlation in catalyzing electrochemical CO₂ reduction reactions. We show that the complexes with higher intramolecular tension and coordination asymmetry manifests a lower electrochemical stability and thus more active Cu centers, which can be reduced during electrolysis to form Cu clusters accompanied by partially-reduced or fragmented ligands. We demonstrate the hybrid structure of Cu cluster and partial

SUBMITTER: Yang B 

PROVIDER: S-EPMC9433389 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature