Improvement of cathode reaction of a mediatorless microbial fuel cell

The Hai Pham, Jae Kyung Jang, In Seop Chang, Byung Hong Kim

Research output: Contribution to journalArticle

126 Citations (Scopus)

Abstract

Oxygen diffuses through the cation-specific membrane, reducing the coulomb yield of the fuel cell. In the present study, attempts were made to enhance current generation from the fuel cell by lowering the oxygen diffusion, including the uses of ferricyanide as a cathode mediator and of a platinum-coated graphite electrode. Ferricyanide did not act as a mediator as expected, but as an oxidant in the cathode compartment of the microbial fuel cell. The microbial fuel cell with platinum-coated graphite cathode generated a maximum current 3-4 times higher than the control fuel cell with graphite cathode, and the critical oxygen concentration of the former was 2.0 mg l-1, whilst that of the latter was 6.6 mg l-1. Based on these results, it was concluded that inexpensive electrodes are adequate for the construction of an economically feasible microbial fuel cell with better performance as a novel wastewater treatment process.

Original languageEnglish
Pages (from-to)324-329
Number of pages6
JournalJournal of Microbiology and Biotechnology
Volume14
Issue number2
Publication statusPublished - Apr 2004
Externally publishedYes

Fingerprint

Bioelectric Energy Sources
Microbial fuel cells
Electrodes
Cathodes
Fuel cells
Graphite
Oxygen
Platinum
Graphite electrodes
Oxidants
Wastewater treatment
Cations
Positive ions
Waste Water
Membranes

Keywords

  • BOD sensor
  • Cathode reaction
  • Ferricyanide
  • Mediatorless microbial fuel cell
  • Platinum-coated electrode
  • Wastewater treatment

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology
  • Microbiology
  • Bioengineering

Cite this

Pham, T. H., Jang, J. K., Chang, I. S., & Kim, B. H. (2004). Improvement of cathode reaction of a mediatorless microbial fuel cell. Journal of Microbiology and Biotechnology, 14(2), 324-329.

Improvement of cathode reaction of a mediatorless microbial fuel cell. / Pham, The Hai; Jang, Jae Kyung; Chang, In Seop; Kim, Byung Hong.

In: Journal of Microbiology and Biotechnology, Vol. 14, No. 2, 04.2004, p. 324-329.

Research output: Contribution to journalArticle

Pham, TH, Jang, JK, Chang, IS & Kim, BH 2004, 'Improvement of cathode reaction of a mediatorless microbial fuel cell', Journal of Microbiology and Biotechnology, vol. 14, no. 2, pp. 324-329.
Pham, The Hai ; Jang, Jae Kyung ; Chang, In Seop ; Kim, Byung Hong. / Improvement of cathode reaction of a mediatorless microbial fuel cell. In: Journal of Microbiology and Biotechnology. 2004 ; Vol. 14, No. 2. pp. 324-329.
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