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Issue 24, 2018
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Highly selective electrochemical reduction of CO2 to formate on metal-free nitrogen-doped PC61BM

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Abstract

Herein we report the first example of a nitrogen-doped fullerene derivative metal-free catalyst for electrochemical reduction of CO2 to formate. The N-doped PC61BM ([6,6]-phenyl-C61-butyric acid methyl ester) (N-C61) exhibits an excellent activity toward CO2 reduction, reaching a high faradaic efficiency (FE) of 91.2% for formate production with good stability at a moderate overpotential of 700 mV. A partial formate current density (jHCOO) of 14.7 mA cm−2 was observed at −1.1 V (vs. RHE), which is larger than those of most metal-free electrocatalysts. Additionally, a detailed study suggests that graphitic N-defects are the most likely active sites for formate formation. This work provides a practical and feasible way to fabricate an N-doped fullerene derivative and other heteroatom doped fullerene-based electrocatalysts for electrochemical reduction of CO2.

Graphical abstract: Highly selective electrochemical reduction of CO2 to formate on metal-free nitrogen-doped PC61BM

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Publication details

The article was received on 11 Apr 2018, accepted on 15 May 2018 and first published on 16 May 2018


Article type: Paper
DOI: 10.1039/C8TA03328E
Citation: J. Mater. Chem. A, 2018,6, 11236-11243
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    Highly selective electrochemical reduction of CO2 to formate on metal-free nitrogen-doped PC61BM

    Z. Chen, K. Mou, S. Yao and L. Liu, J. Mater. Chem. A, 2018, 6, 11236
    DOI: 10.1039/C8TA03328E

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