期刊
ACS CATALYSIS
卷 8, 期 5, 页码 3957-3964出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.8b00708
关键词
hydrogenases; carbon nanotubes; diazonium; biofuel cells; hydrogen oxidation
资金
- Ministere de l'Environnement, de l'Energie et de la Mer
- LabEx ARCANE programme [ANR-11-LABX-0003-01]
- Universite Grenoble Alpes [IDEX-IRS 2017]
- CNRS
- plateforme de Chimie NanoBio ICMG FR (PCN-ICMG)
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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