Highly Selective Electrochemical CO2 Reduction to C2 Products on a g-C3N4-Supported Copper-Based Catalyst |
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| Authors: | Zijun Yan Tao Wu |
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| Affiliation: | 1.New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, China;2.Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, China;3.Nottingham Ningbo Beacons of Excellence Research and Innovation Institute, Ningbo 315000, China |
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| Abstract: | Herein, a novel approach used to enhance the conversion of electrochemical CO2 reduction (CO2R), as well as the capacity to produce C2 products, is reported. A copper oxide catalyst supported by graphite phase carbon nitride (CuO/g-C3N4) was prepared using a one-step hydrothermal method and exhibited a better performance than pure copper oxide nanosheets (CuO NSs) and spherical copper oxide particles (CuO SPs). The Faradaic efficiency reached 64.7% for all the C2 products, specifically 37.0% for C2H4, with a good durability at −1.0 V vs. RHE. The results suggest that the interaction between CuO and the two-dimensional g-C3N4 planes promoted CO2 adsorption, its activation and C-C coupling. This work offers a practical method that can be used to enhance the activity of electrochemical CO2R and the selectivity of C2 products through synergistic effects. |
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| Keywords: | electrochemical reduction of CO2 graphite phase carbon nitride copper oxide C2 products hydrothermal preparation for advantageous electrocatalyst |
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