Electrochemical reduction of carbon dioxide to C2 products using a copper-sulfide, nanoparticle electrode synthesized by thermal decomposition of sulfur and copper-amine complex ink

Abstract

A copper sulfide electrode was synthesized by thermal decomposition of sulfur and copper-amine complex ink. The film consisted of Cu_1.8S and CuS nanoparticles. CO₂ was electrochmically reduced to CO, CH₄, and C₂H₄, and the pecentage of C₂H₄ (C2 product) was higher than that produced using a copper electrode.