Hydrogenase enzymes efficiently process H2 and protons at organometallic FeFe, NiFe, or
Fe active sites. Synthetic modeling of the many H2ase states has provided insight into …

The reaction takes place at a specialized metal center that dramatically increases the acidity
of H2 and leads to a heterolytic splitting of the molecule which is strongly accelerated by the …

Strictly anaerobic, acetogenic (acetate-forming) bacteria are characterized by a reductive
pathway in which two mol of CO 2 are reduced to one mol of acetyl coenzyme A (acetyl …

The enzyme FeFe-hydrogenase catalyzes H2 evolution and oxidation at an active site that
consists of a [4Fe-4S] cluster bridged to a [Fe2 (CO) 3 (CN) 2 (azadithiolate)] subsite …

[FeFe] hydrogenases, metalloenzymes catalyzing proton/dihydrogen interconversion, have
attracted intense attention due to their remarkable catalytic properties and (bio-) …

FeFe hydrogenases are the most efficient H2-producing enzymes. However, inactivation by
O2 remains an obstacle that prevents them being used in many biotechnological devices …

As paradigms for proton-coupled electron transfer in enzymes and benchmarks for a fully
renewable H2 technology,[FeFe]-hydrogenases behave as highly reversible electrocatalysts …

Hydrogenases are key enzymes of the energy metabolism of many microorganisms.
Especially in anoxic habitats where molecular hydrogen (H2) is an important intermediate …

Integration of efficient platinum-group-metal (PGM)-free catalysts to fuel cells and
electrolyzers is a prerequisite to their large-scale deployment. Here, we describe the …

Background Replacing fossil fuels as energy carrier requires alternatives that combine
sustainable production, high volumetric energy density, easy and fast refueling for mobile …