Single atomic metal and nitrogen doped carbon catalyst (M-N/C) is one of the most promising solutions for conversion of CO2 by electrochemical reduction reaction. However, either the high cost of the single atomic catalyst itself or the complexity of the preparation process limits the catalyst system into large-scale application. In our work, we reported a method of transforming low cost commercial multi-wall carbon nanotubes directly into a highly efficient iron and nitrogen co-doped CNT catalyst. The facile process provides a uniform single-atomic Fe-N4 active site formation, enabling highly active CO2 reduction performance and significantly suppressing the competition reaction, hydrogen evolution reaction (HER). A stable performance of 96% Faradaic efficiency of CO and 22.6 mA/cm2 current density were delivered at a low overpotential of 650 mV. The work presents a novel method of preparing efficient CO2 reduction catalysts using a low-cost process.

Low-cost single-atomic iron and nitrogen doped carbon catalyst for electrochemical CO2 reduction

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.