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Bhupendra Kumar, Dr. Maryline Beyler, Prof. Dr. Clifford P. Kubiak and Dr. Sascha Ott Photoelectrochemical Hydrogen Generation by an [FeFe] Hydrogenase Active Site Mimic at a p-Type Silicon/Molecular Electrocatalyst Junction Chemistry - A European Journal 18

Version of Record online: 5 JAN 2012 | DOI: 10.1002/chem.201102860

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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.

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