Skip to Main content Skip to Navigation
Journal articles

Electrochemical reduction of CO2 catalyzed by Fe-N-C materials: a structure-selectivity study

Abstract : Selective electrochemical reduction of CO2 into energy-dense organic compounds is a promising strategy for using CO2 as a carbon source. Herein, we investigate a series of iron-based catalysts synthesized by pyrolysis of Fe-, N- and C- containing precursors for the electroreduction of CO2 to CO in aqueous conditions and demonstrate that the selectivi-ty of these materials for CO2 reduction over proton reduction is governed by the ratio of isolated FeN4 sites vs. Fe-based nanoparticles. This ratio can be synthetically tuned to generate electrocatalysts producing controlled CO/H2 ratios. It notably allows preparing materials containing only FeN4 sites, which are able to selectively reduce CO2 to CO in aqueous solution with Faradaic yields over 90% and at low overpotential.
Document type :
Journal articles
Complete list of metadatas

Cited literature [3 references]  Display  Hide  Download

https://hal.sorbonne-universite.fr/hal-01445701
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Wednesday, January 25, 2017 - 11:35:18 AM
Last modification on : Tuesday, July 21, 2020 - 3:04:51 AM
Document(s) archivé(s) le : Wednesday, April 26, 2017 - 2:47:39 PM

File

Huan_2017_Electrochemical.pdf
Files produced by the author(s)

Identifiers

Citation

Tran Ngoc Huan, Nastaran Ranjbar, Gwenaelle Rousse, Moulay Tahar Sougrati, Andrea Zitolo, et al.. Electrochemical reduction of CO2 catalyzed by Fe-N-C materials: a structure-selectivity study. ACS Catalysis, American Chemical Society, 2017, ⟨10.1021/acscatal.6b03353⟩. ⟨hal-01445701⟩

Share

Metrics

Record views

799

Files downloads

797