A membraneless air-breathing hydrogen biofuel cell based on direct wiring of thermostable enzymes on carbon nanotube electrodes

Chem Commun (Camb). 2015 May 1;51(35):7447-50. doi: 10.1039/c5cc02166a.

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

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Air
  • Bacillus / enzymology
  • Bioelectric Energy Sources*
  • Electrodes
  • Enzymes, Immobilized / chemistry
  • Enzymes, Immobilized / metabolism
  • Hydrogen / chemistry
  • Hydrogen / metabolism
  • Hydrogenase / chemistry
  • Hydrogenase / metabolism*
  • Nanotubes, Carbon / chemistry*
  • Nanotubes, Carbon / ultrastructure
  • Oxidation-Reduction
  • Oxidoreductases Acting on CH-CH Group Donors / chemistry
  • Oxidoreductases Acting on CH-CH Group Donors / metabolism*
  • Oxygen / chemistry
  • Oxygen / metabolism

Substances

  • Enzymes, Immobilized
  • Nanotubes, Carbon
  • Hydrogen
  • Hydrogenase
  • Oxidoreductases Acting on CH-CH Group Donors
  • bilirubin oxidase
  • Oxygen