Sulfur Doping to Cu₃N Electrocatalyst Enhanced CO₂ Reduction to CH₄.

ABSTRACT: Although metal sulfides are promising catalysts for the electrochemical carbon dioxide (CO₂) reduction reaction, repulsion between the lone pair of oxygen electrons of CO₂ and the electronic clouds of surface sulfur atoms is considered to impede the reaction. Nitrogen introduction is one potential solution to this problem; however, the optimal ratio of sulfur to nitrogen has yet to be determined, and the enhanced reaction products that have been reported to date are limited to carbon monoxide (CO) and formic acid. In this work, copper sulfide (Cu₂S) and copper nitride (Cu₃N) composites with varying sulfur-to-nitrogen ratios are synthesized with the objective of enhancing the catalytic activity of the CO₂ reduction reaction to methane (

SUBMITTER: Ihara S 

PROVIDER: S-EPMC12665885 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature