Cation contamination has long hindered deployment of highly active platinum-alloy catalysts in commercial proton exchange membrane fuel cells. Now, a CO2-assisted recovery protocol allows contaminants to be removed from inside an operating cell, potentially redefining the practical outlook for platinum-alloy catalysts.
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Tong, L., Liang, HW. CO2-enabled recovery. Nat Energy (2026). https://doi.org/10.1038/s41560-026-02076-9
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DOI: https://doi.org/10.1038/s41560-026-02076-9
