Electrocatalytic O2 Reduction by [Fe-Fe]-Hydrogenase Active Site Models

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• 作者：Subal Dey ; Atanu Rana ; Danielle Crouthers ; Biswajit Mondal ; Pradip Kumar Das ; Marcetta Y. Darensbourg ; Abhishek Dey
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：June 25, 2014
• 年：2014
• 卷：136
• 期：25
• 页码：8847-8850
• 全文大小：302K
• ISSN：1520-5126

文摘

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.