Scalable synthesis of coordinatively unsaturated metal-nitrogen sites for large-scale CO₂ electrolysis.

ABSTRACT: Practical electrochemical CO₂-to-CO conversion requires a non-precious catalyst to react at high selectivity and high rate. Atomically dispersed, coordinatively unsaturated metal-nitrogen sites have shown great performance in CO₂ electroreduction; however, their controllable and large-scale fabrication still remains a challenge. Herein, we report a general method to fabricate coordinatively unsaturated metal-nitrogen sites doped within carbon nanotubes, among which cobalt single-atom catalysts can mediate efficient CO₂-to-CO formation in a membrane flow configuration, achieving a current density of 200 mA cm^-2 with CO selectivity of 95.4% and high full-cell energy efficiency of 54.1%, outperforming most of CO₂-to-CO conversion electrol

SUBMITTER: Sun JW 

PROVIDER: S-EPMC10113237 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature