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Updated: May 16, 2026

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Boosting CO2-to-C2H4 electrocatalysis on Cu2O with waste-derived porous carbon from coconut shells
Chen Qin1, TangRui Li1, Gevindu Masakorala2
1State Key Laboratory of Water Pollution Control and Green Resource Recycling, State Key Laboratory of Analytical Chemistry for Life Science, Frontiers Science Center for Critical Earth Material Cycling, School of the Environment, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China. wenleizhu@nju.edu.cn.
Abstract:
This study presents a sustainable strategy to boost CO2-to-C2H4 conversion by constructing Cu-C interfaces using Cu2O nanospheres supported on porous carbon derived from waste coconut shells. The Cu2O-10mgC catalyst achieves a 4-fold increase in FE(C2H4) compared with Cu2O and maintains >40% selectivity for 45 h. In situ spectra reveal enhanced *COLFB coverage, confirming that oxygen-rich functional groups at the Cu-C interface promote C-C coupling. This work demonstrates both the catalytic and economic feasibility of waste-derived carbon supports for efficient CO2-to-C2H4 conversion.
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