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Oriented Immobilization of [NiFeSe] Hydrogenases on Covalently and Noncovalently Functionalized Carbon Nanotubes for H2/Air Enzymatic Fuel Cells

Abstract : We report the oriented immobilization of [NiFeSe] hydrogenases on both covalently and noncovalently modified carbon nanotubes (CNTs) electrodes. A specific interaction of the [NiFeSe] hydrogenase from Desulfomicrobium baculatum with hydrophobic organic molecules was probed by electrochemistry, quartz crystal microbalance with dissipation monitoring (QCM-D), and theoretical calculations. Taking advantage of these hydrophobic interactions, the enzyme was efficiently wired on anthraquinone and adamantane-modified CNTs. Because of rational immobilization onto functionalized CNTs, the O-2-tolerant [NiFeSe]-hydrogenase is able to efficiently operate in a H-2/air gas-diffusion enzymatic fuel cell.
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https://hal.archives-ouvertes.fr/hal-01944392
Contributor : Nathalie GON Connect in order to contact the contributor
Submitted on : Tuesday, December 4, 2018 - 3:52:06 PM
Last modification on : Tuesday, January 4, 2022 - 4:09:19 AM

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Solène Gentil, Syamim Muhamad Che Mansor, Jamet Hélène, Serge Cosnier, Christine Cavazza, et al.. Oriented Immobilization of [NiFeSe] Hydrogenases on Covalently and Noncovalently Functionalized Carbon Nanotubes for H2/Air Enzymatic Fuel Cells. ACS Catalysis, 2018, 8 (5), pp.3957-3964. ⟨10.1021/acscatal.8b00708⟩. ⟨hal-01944392⟩

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