Gases like H2, N2, CO2, and CO are increasingly recognized as critical feedstock in “green”
energy conversion and as sources of nitrogen and carbon for the agricultural and chemical …

While hydrogen plays an ever-increasing role in modern society, nature has utilized
hydrogen since a very long time as an energy carrier and storage molecule. Among the …

Reduction of oxides and oxoanions of carbon and nitrogen are of great contemporary
importance as they are crucial for a sustainable environment. Substantial research has been …

Ever since the discovery of hydrogenases over 90 years ago (Stephenson and Stickland,
1931), their structure and mechanism of action have been intensively investigated. Of the …

Hydrogenases are redox enzymes that catalyze the conversion of protons and molecular
hydrogen (H2). Based on the composition of the active site cofactor, the monometallic [Fe] …

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 are extremely active H2-converting enzymes. Their mechanism
remains highly controversial, in particular, the nature of the one-electron and two-electron …

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

Conspectus Hydrogenases are metalloenzymes that catalyze proton reduction and H2
oxidation with outstanding efficiency. They are model systems for bioinorganic chemistry …

Hydrogenases display a wide range of catalytic rates and biases in reversible hydrogen gas
oxidation catalysis. The interactions of the iron–sulfur-containing catalytic site with the local …