A Biomimetic Pathway for Hydrogen Evolution from a Model of the Iron Hydrogenase Active Site


  • We thank Fernando Lopes Pinto (Uppsala University) for his help with the hydrogen GC analysis. Financial support for this work was provided by the Swedish Energy Agency, the Knut and Alice Wallenberg Foundation, and the Swedish Research Council (VR).


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Good potential: A biomimetic model of the iron hydrogenase active site functions as a catalyst for electrochemical proton reduction at relatively moderate negative potentials. The catalytic cycle (see scheme) involves the protonation of the azadithiolate nitrogen atom as its initial step. This system may eventually be used to achieve light-activated hydrogen evolution.