Toward Sustainable H-2 Production: Linking Hydrogenase with Photosynthesis

Molecular hydrogen, H-2, is an energy carrier that is increasing in popularity as an alternative fuel. Presently, the major part of commercially available H-2 is produced from fossil resources. To make H-2 a true contender to fossil fuels, a sustainable production via water splitting by renewable electricity in combination with earth-abundant catalysts or by photosynthetic microorganisms is required.