Abstract
A biocathode was designed by the modification of a carbon nanotube (CNT) gas-diffusion electrode with bilirubin oxidase from Bacillus pumilus, achieving high current densities up to 3 mA cm(-2) for the reduction of O2 from air. A membraneless air-breathing hydrogen biofuel cell was designed by combination of this cathode with a functionalized CNT-based hydrogenase anode.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Air
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Bacillus / enzymology
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Bioelectric Energy Sources*
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Electrodes
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Enzymes, Immobilized / chemistry
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Enzymes, Immobilized / metabolism
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Hydrogen / chemistry
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Hydrogen / metabolism
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Hydrogenase / chemistry
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Hydrogenase / metabolism*
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Nanotubes, Carbon / chemistry*
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Nanotubes, Carbon / ultrastructure
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Oxidation-Reduction
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Oxidoreductases Acting on CH-CH Group Donors / chemistry
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Oxidoreductases Acting on CH-CH Group Donors / metabolism*
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Oxygen / chemistry
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Oxygen / metabolism
Substances
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Enzymes, Immobilized
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Nanotubes, Carbon
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Hydrogen
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Hydrogenase
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Oxidoreductases Acting on CH-CH Group Donors
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bilirubin oxidase
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Oxygen