Boosting CO2 -to-C2H4 Electrocatalysis on Cu2O with Waste-Derived Porous Carbon from Coconut Shells

Abstract

This study presents a sustainable strategy to boost CO2 -to-C2H4 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 Cu2 O and maintains >40% selectivity for 45h. Insitu spectrums reveal enhanced *CO LFB coverage, confirming that oxygen-rich functional groups at the Cu-C interface promote C-C coupling. It demonstrates both the catalytic and economic feasibility of waste-derived carbon supports for efficient CO2-to-C2H4