Acidic media enables oxygen-tolerant electrosynthesis of multicarbon products from simulated flue gas.

ABSTRACT: Renewable electricity powered electrochemical CO₂ reduction (CO₂R) offers a valuable method to close the carbon cycle and reduce our overreliance on fossil fuels. However, high purity CO₂ is usually required as feedstock, which potentially decreases the feasibility and economic viability of the process. Direct conversion of flue gas is an attractive option but is challenging due to the low CO₂ concentration and the presence of O₂ impurities. As a result, up to 99% of the applied current can be lost towards the undesired oxygen reduction reaction (ORR). Here, we show that acidic electrolyte can significantly suppress ORR on Cu, enabling generation of multicarbon products from simulated flue gas. Using a composite Cu and carbon supported

SUBMITTER: Wang M 

PROVIDER: S-EPMC10858036 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature