A phosphorus-free anolyte to enhance coulombic efficiency of microbial fuel cells

A phosphorus-free anolyte to enhance coulombic efficiency of microbial fuel cells 1 Introduction</h5> Microbial fuel cell (MFC) is a bioelectrochemical system that converts chemical energy in organic matters into electrical energy by catalysis of microorganisms [1–3] . As a novel biotechnology for wastewater treatment, renewable energy production, biosensor, bioremediation and chemical synthesis, MFC has drawn much attention and has achieved great progress in the past decade [4–8] . Currently, one of the main challenges for improving MFC applications is to increase the electron recovery from the substrates (coulombic efficiency, CE) as the CE of MFCs is still too low [9–13] . The CE, defined as the ratio of the amount of electrons transferred through the circuit to the amount of electrons theoretically delivered by the substrate, is one of the most important criteria for MFC performance evaluation. The CE is mainly diminished by growth and reproduction of microorganisms, competitive processes such as fermentation, and aerobic respiration due to the diffusing of oxygen into the anode chamber [10,14] . Therefore, it is of great significance to address these challenges to enhance CE in order to create efficient MFCs for these applications.</P>Coulombic efficiency typically depends on the electrolyte composition, inocula, reactor design and operation [15] . Previous studies demonstrates that biofilm http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Power Sources Elsevier

A phosphorus-free anolyte to enhance coulombic efficiency of microbial fuel cells

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Publisher
Elsevier
Copyright
Copyright © 2014 Elsevier B.V.
ISSN
0378-7753
D.O.I.
10.1016/j.jpowsour.2014.06.009
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> Microbial fuel cell (MFC) is a bioelectrochemical system that converts chemical energy in organic matters into electrical energy by catalysis of microorganisms [1–3] . As a novel biotechnology for wastewater treatment, renewable energy production, biosensor, bioremediation and chemical synthesis, MFC has drawn much attention and has achieved great progress in the past decade [4–8] . Currently, one of the main challenges for improving MFC applications is to increase the electron recovery from the substrates (coulombic efficiency, CE) as the CE of MFCs is still too low [9–13] . The CE, defined as the ratio of the amount of electrons transferred through the circuit to the amount of electrons theoretically delivered by the substrate, is one of the most important criteria for MFC performance evaluation. The CE is mainly diminished by growth and reproduction of microorganisms, competitive processes such as fermentation, and aerobic respiration due to the diffusing of oxygen into the anode chamber [10,14] . Therefore, it is of great significance to address these challenges to enhance CE in order to create efficient MFCs for these applications.</P>Coulombic efficiency typically depends on the electrolyte composition, inocula, reactor design and operation [15] . Previous studies demonstrates that biofilm

Journal

Journal of Power SourcesElsevier

Published: Dec 5, 2014

References

  • Environ. Sci. Technol.
    McCarty, P.L.; Bae, J.; Kim, J.
  • Biosens. Bioelectron.
    Gil, G.C.; Chang, I.S.; Kim, B.H.; Kim, M.; Jang, J.K.; Park, H.S.; Kim, H.J.
  • Electrochem. Commun.
    Tang, X.H.; Du, Z.W.; Li, H.R.
  • Electrochem. Commun.
    Zhuang, L.; Yuan, Y.; Yang, G.Q.; Zhou, S.G.
  • J. Power Sources
    Dewan, A.; Donovan, C.; Heo, D.; Beyenal, H.

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