Electrocatalytic O₂ reduction by [Fe-Fe]-hydrogenase active site models.
The instability of [Fe-Fe]-hydrogenase and its synthetic models under aerobic conditions is an inherent challenge in their development as practical H2 producing electrodes. The electrochemical oxygen reduction reaction of a series of synthetic model complexes of the [Fe-Fe] hydrogenase is investigated, and a dominant role of the bridgehead nitrogen in reducing the amount of partially reduced oxygen species (PROS), which is detrimental to the stability of these complexes, is discovered.
Department of Inorganic Chemistry, Indian Association for the Cultivation of Science , Kolkata, India 700032.
Subal
S
Dey
Atanu
A
Rana
Danielle
D
Crouthers
Biswajit
B
Mondal
Pradip Kumar
PK
Das
Marcetta Y
MY
Darensbourg
Abhishek
A
Dey
D015374:Biosensing Techniques; D002384:Catalysis; D020134:Catalytic Domain; D055664:Electrochemical Techniques; D006864:Hydrogenase / Q000737:chemistry / Q000378:metabolism*; D007506:Iron-Sulfur Proteins / Q000737:chemistry / Q000378:metabolism*; D008956:Models, Chemical; D008968:Molecular Conformation; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry / Q000378:metabolism*; D011789:Quantum Theory; D014867:Water / Q000737:chemistry / Q000378:metabolism
D007506:Iron-Sulfur Proteins; D014867:Water; C118830:iron hydrogenase; D006864:Hydrogenase; D010100:Oxygen