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Synergistic catalysis between atomically dispersed Fe and a pyrrolic-N-C framework for CO2 electroreduction

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Abstract

Atomically dispersed Fe immobilized within N-doped carbon nanosheets (Fe-SA) is successfully synthesized. The optimal Fe-SA catalyst achieves a high faradaic efficiency of ca. 90% for CO2 electroreduction toward CO at a low overpotential of 0.47 V. A series of controlled tests show that there is a synergistic effect between the Fe centers and the pyrrolic-N-C framework which facilitates catalytic activity. Specifically, pyrrolic-N-C sites with high local electron density increase the initial CO2 adsorption while positively charged Fe enhances the water dissociation to provide a proton source for further CO2 reduction.

Graphical abstract: Synergistic catalysis between atomically dispersed Fe and a pyrrolic-N-C framework for CO2 electroreduction

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Publication details

The article was received on 31 May 2019, accepted on 15 Jul 2019 and first published on 16 Jul 2019


Article type: Communication
DOI: 10.1039/C9NH00361D
Nanoscale Horiz., 2019, Advance Article

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    Synergistic catalysis between atomically dispersed Fe and a pyrrolic-N-C framework for CO2 electroreduction

    C. Xu, A. Vasileff, D. Wang, B. Jin, Y. Zheng and S. Qiao, Nanoscale Horiz., 2019, Advance Article , DOI: 10.1039/C9NH00361D

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