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Article Dans Une Revue Journal of the American Chemical Society Année : 2022

A bidirectional bioinspired [FeFe]-hydrogenase model

Résumé

With the price-competitiveness of solar and wind power, hydrogen technologies may be game changers for a cleaner, defossilized, and sustainable energy future. H$_2$ can indeed be produced in electrolyzers from water, stored for long periods, and converted back into power, on demand, in fuel cells. The feasibility of the latter process critically depends on the discovery of cheap and efficient catalysts able to replace platinum group metals at the anode and cathode of fuel cells. Bioinspiration can be key for designing such alternative catalysts. Here we show that a novel class of iron-based catalysts inspired from the active site of [FeFe]-hydrogenase behave as unprecedented bidirectional electrocatalysts for interconverting H$_2$ and protons efficiently under near-neutral aqueous conditions. Such bioinspired catalysts have been implemented at the anode of a functional membrane-less H$_2$/O$_2$ fuel cell device.

Domaines

Catalyse Matériaux
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Dates et versions

hal-03637356 , version 1 (19-10-2022)

Identifiants

Citer

Md Estak Ahmed, Abhijit Nayek, Alenka Križan, Nathan Coutard, Adina Morozan, et al.. A bidirectional bioinspired [FeFe]-hydrogenase model. Journal of the American Chemical Society, 2022, 144, pp.3614-3625. ⟨10.1021/jacs.1c12605⟩. ⟨hal-03637356⟩
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