Oxygen-stable biocatalyst from a thermophilic bacterium could boost hydrogen production In the absence of air, microorganisms produce hydrogen using an enzyme called [FeFe]-hydrogenase, one of the most efficient hydrogen-producing biocatalysts known and a promising tool for green hydrogen energy. However, these enzymes are rapidly destroyed when exposed to air, which has so far limited their industrial use.
https://phys.org/news/2025-05-....oxygen-stable-biocat