is a promising carbon-free energy carrier with high energy density and a well established infrastructure. The industrial Haber-Bosch process for NH3
synthesis from dissociated N2
N2 + 3H2 ↔ 2NH3
requires high pressures, temperatures, and large installations, and is thus illsuited for decentralized production using, e.g. photo-voltaics or wind turbines.
The enzyme nitrogenase produces ammonia under ambient conditions by catalyzing the direct addition of protons and electrons to N2:
N2 + 8H+ + 8e- ↔ 2NH3 + H2
We will search for new catalyst that fixate N2 and electrochemically adsorb protons and electrons to form NH3.