CO 2 electrolysis to multicarbon products in strong acid

2021/06/03 by Jianan Erick Huang, Fengwang Li, Adnan Ozden +13 · 4 citations
Chemical Engineering · Energy · #CO2 Reduction Techniques and Catalysts #Carbon dioxide utilization in catalysis #Ionic liquids properties and applications

paper · doi:10.1126/science.abg6582

openalex publication_date 2021/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

Potassium helps CO 2 compete in acid Electrochemical reduction of carbon dioxide (CO 2 ) is a promising means of converting this greenhouse gas into valuable fuels and chemicals. However, two competing reactions restrict the efficiency of this process. In base, much of the CO 2 is trapped as carbonate before reduction; in acid, protons outpace CO 2 at catching electrons from the cathode. Huang et al. report that a high dose of potassium ions can help to solve the latter problem. By concentrating potassium ions at the electrode, high selectivity toward CO 2 reduction at high current in acid is possible, which the authors attribute to electrostatic stabilization of the desired adsorbates. Science , abg6582, this issue p. 1074

Citations

• Product Selectivity Affected by Cationic Species in Electrochemical Reduction of CO2 and CO at a Cu Electrode
• CO 2 electrolysis to multicarbon products at activities greater than 1 A cm −2
• Electrocatalytic reduction of CO2 to ethylene and ethanol through hydrogen-assisted C–C coupling over fluorine-modified copper
• Highly selective electrocatalytic CO2 reduction to ethanol by metallic clusters dynamically formed from atomically dispersed copper

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• Deciphering Electrocatalytic Activity in Cu Nanoclusters: Interplay Between Structural Confinement and Ligands Environment
• Molecularly engineered covalent hydrophobic interface for enhanced CO2 electromethanation in strong acid

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