Metal chalcogenide-associated catalysts enabling CO₂ electroreduction to produce low-carbon fuels for energy storage and emission reduction: catalyst structure, morphology, performance, and mechanism

Abstract

Electrochemical reduction of CO2 (ERCO2) to low-carbon fuels/chemicals can simultaneously realize electricity energy shortage in the form of chemicals and alleviate environmental deterioration. However, the process needs high active, stable,...

Cu Vacancy Induced Product Switching from Formate to CO for CO2 Reduction on Copper Sulfide

“…This is because the S anions have caused the CO-pathway intermediate *COOH to adsorb too weakly on copper sulfide, resulting in the suppression of CO formation during CO 2 RR . However, the S anions could promote the formation of H* through H 2 O activation, which in turn assisted in the formation of the key COOH* intermediate of the formate pathway . Meanwhile, the presence of S could create some steric hindrance, prevent the COOH* intermediate from binding too strongly on the catalyst surface and thus also favor the formate formation.…”

Nickel selenide as an efficient electrocatalyst for selective reduction of carbon dioxide to carbon-rich products

“…16 Apart from metals, metallic alloys, and oxides, chalcogenides have also been recently explored as electrocatalysts for CO 2 RR. 17 Recently, Cu 2 Se has been identified as an efficient CO 2 RR electrocatalyst with high efficiency. 3,18 Interestingly, Cu 2 Se shows high selectivity towards carbon-rich products for low applied potentials, with more than 70% faradaic efficiency for formation of ethanol.…”

Recent advancement in heterogeneous CO2 reduction processes in aqueous electrolyte

“…Li et al , 24 Lu et al , 25 and Huang et al 26 thoroughly reviewed single-atom catalyst (SAC) materials as electrodes. Shao et al , 27 Chen et al , 28 and Gao et al 29 gave a detailed overview of metal chalcogenide materials as electrocatalysts. Choi et al 30 reviewed defect engineering and the effect of catalyst poisoning on EC CO 2 RR.…”