Facile electrocatalytic proton reduction by a [Fe–Fe]-hydrogenase bio-inspired synthetic model bearing a terminal CN<sup>−</sup> ligand
Abhijit Nayek, Subal Dey, Suman Patra, Atanu Rana, Pauline N. Serrano, Simon J. George, Stephen P. Cramer, Somdatta Ghosh Dey, Abhishek Dey
Abstract
An azadithiolate bridged CN − bound pentacarbonyl bis-iron complex, mimicking the active site of [Fe–Fe] H 2 ase is synthesized, which effectively reduces H + to H 2 between pH 0–3 at diffusion-controlled rates (10 11 M −1 s −1 ) i.e. 10 8 s −1 at pH 3 with an overpotential of 140 mV.
Topics & Concepts
HydrogenaseLigand (biochemistry)Terminal (telecommunication)Reduction (mathematics)Bearing (navigation)Combinatorial chemistryProtonChemistryElectrocatalystElectrochemistryCatalysisStereochemistryOrganic chemistryPhysical chemistryElectrodeComputer sciencePhysicsBiochemistryReceptorMathematicsGeometryTelecommunicationsQuantum mechanicsArtificial intelligenceMetalloenzymes and iron-sulfur proteinsElectrocatalysts for Energy ConversionAdvanced battery technologies research