Electrochemically induced pH swing can facilitate direct air capture at ambient temperature; however, the energy efficiency is compromised by the oxidation of the redox-active organic molecules. A hybrid flow cell that spatially isolates the oxygen-sensitive materials from air achieves stable CO2 capture from oxygen-containing gas streams with low energy demand.
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This is a summary of: Jin, X. et al. Direct air capture of CO2 in an electrochemical hybrid flow cell with a spatially isolated phenazine electrode. Nat. Energy https://doi.org/10.1038/s41560-025-01836-3 (2025).
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A hybrid-flow cell for stable pH-swing-facilitated direct air capture. Nat Energy 10, 1058–1059 (2025). https://doi.org/10.1038/s41560-025-01837-2
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DOI: https://doi.org/10.1038/s41560-025-01837-2
