Electrocatalytic Reduction of CO2 to Ethylene by Molecular Cu-Complex Immobilized on Graphitized Mesoporous Carbon

Abstract

Summary

The study shows that a dinuclear molecular copper complex immobilized on graphitized mesoporous carbon catalyzes the electrochemical conversion of CO₂ to hydrocarbons (methane and ethylene) with total Faradaic efficiencies of up to 60%. In 0.1 M KCl, a high selectivity toward C₂ products is achieved, with a Faradaic efficiency of 40%. The influence of local pH, pore structure, and the carbon support on mass transport and the formation of highly reduced products is demonstrated. Although spectroscopy after 2 h of bulk electrolysis indicates that the molecular complex is still present, morphological analysis reveals that newly formed copper clusters act as the actual active sites during catalysis.

Advances and special progress

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Additional remarks

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Content of the published article in detail

Catalyst

101025

Investigation

	Experiment type	Catalytic information		Working electrode		Counter electrode		Reaction parameters	Catalytic performance
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Investigation-Name: Bulk ElectrolysisExportRefresh

electrochemical CO₂ reduction, dinuclear copper complex, molecular catalyst, copper clusters, graphitized mesoporous carbon support, catalyst immobilization, methane production, ethylene production, C₂ product selectivity, Faradaic efficiency, local pH effects, mass transport, catalyst restructuring, bulk electrolysis, spectroscopy analysis, morphology characterization