Biological Production of Hydrogen

The production of H2 from renewable sources, such as water or biomass, is a sustainable strategy for energy supply. Hydrogenases are the only enzymes that specifically catalyze the reversible reaction of H2 production/uptake with almost no overpotential. In this chapter, we review the advances produced in the last decade in the biocatalytic production of H2, including systems based on isolated hydrogenases as well as those using microorganisms through dark fermentation processes