Photoelectrochemical Hydrogen Generation by an [FeFe] Hydrogenase Active Site Mimic at a p-Type Silicon/Molecular Electrocatalyst Junction

Photoelectrochemical Hydrogen Generation by an [FeFe] Hydrogenase Active Site Mimic at a p-Type Silicon/Molecular Electrocatalyst Junction:

Let there be light! A dithiolate-bridged [FeFe] complex with structural features of the [FeFe] hydrogenase active site has been photoelectrochemically reduced by a p-type Si photocathode at a potential 500 mV less negative compared with a glassy carbon electrode (see figure). In the presence of HClO₄, hydrogen generation has been achieved at a photovoltage of 600 mV with a (105±5) % Faradaic efficiency.

Chem. Eur. J.