Molecularly Woven Cationic Covalent Organic Frameworks for Highly Selective Electrocatalytic Conversion of CO₂ to CO.

ABSTRACT: Coupling carbon capture with electrocatalytic carbon dioxide reduction (CO₂R) to yield high-value chemicals presents an appealing avenue for combating climate change, yet achieving highly selective electrocatalysts remains a significant challenge. Herein, two molecularly woven covalent organic frameworks (COFs) are designed, namely CuCOF and CuCOF⁺, with copper(I)-bisphenanthroline complexes as building blocks. The metal-organic helical structure unit made the CuCOF and CuCOF⁺ present woven patterns, and their ordered pore structures and cationic properties enhanced their CO₂ adsorption and good conductivity, which is confirmed by gas adsorption and electrochemical analysis. In the electrocatalytic CO₂R measurements, CuCOF⁺

SUBMITTER: Dagnaw FW 

PROVIDER: S-EPMC11558085 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature