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CO2 Electroreduction

Enhancing carbon utilization

Zero–gap CO/CO2 electrolyzers typically exhibit low energy conversion efficiency at high reactant conversion due to current losses associated with the parasitic production of H2. Now, an electrolyzer using an electrocatalyst in bulk heterojunction with a hydrophobic covalent organic framework has maintained high energy efficiency at near unity reactant conversion.

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Fig. 1: Qualitative relationship between the CO2 reduction energy conversion efficiency and the carbon utilization efficiency.


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Correspondence to Ezra L. Clark.

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Clark, E.L. Enhancing carbon utilization. Nat Energy 8, 119–120 (2023).

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