Oxygen-reducing biocathodes operating with passive oxygen transfer in microbial fuel cells.

  title={Oxygen-reducing biocathodes operating with passive oxygen transfer in microbial fuel cells.},
  author={Xue Xia and Justin C. Tokash and Fang Zhang and Peng Liang and Xia Huang and Bruce E Logan},
  journal={Environmental science & technology},
  volume={47 4},
Oxygen-reducing biocathodes previously developed for microbial fuel cells (MFCs) have required energy-intensive aeration of the catholyte. To avoid the need for aeration, the ability of biocathodes to function with passive oxygen transfer was examined here using air cathode MFCs. Two-chamber, air cathode MFCs with biocathodes produced a maximum power density of 554 ± 0 mW/m(2), which was comparable to that obtained with a Pt cathode (576 ± 16 mW/m(2)), and 38 times higher than that produced… CONTINUE READING
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