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A Bipolar Membrane Combined with Ferric Iron Reduction as an Efficient Cathode System in Microbial Fuel Cells

Open access
ter Heijne, Annemiek, Hamelers, Hubertus V. M., de Wilde, Vinnie, Rozendal, René A., Buisman, Cees J. N.·2006·Environmental Science & Technology

Abstract

There is a need for alternative catalysts for oxygen reduction in the cathodic compartment of a microbial fuel cell (MFC). In this study, we show that a bipolar membrane combined with ferric iron reduction on a graphite electrode is an efficient cathode system in MFCs. A flat plate MFC with graphite felt electrodes, a volume of 1.2 L and a projected surface area of 290 cm2 was operated in continuous mode. Ferric iron was reduced to ferrous iron in the cathodic compartment according to Fe(3+) + e(-) --> Fe2+ (E0 = +0.77 V vs NHE, normal hydrogen electrode). This reversible electron transfer reaction considerably reduced the cathode overpotential. The low catholyte pH required to keep ferric iron soluble was maintained by using a bipolar membrane instead of the commonly used cation exchange membrane. For the MFC with cathodic ferric iron reduction, the maximum power density was 0.86 W/m2 at a current density of 4.5 A/m2. The Coulombic efficiency and energy recovery were 80-95% and 18-29% respectively.

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Metadata

Authors
ter Heijne, A., Hamelers, H. V. M., de Wilde, V., Rozendal, R. A., & Buisman, C. J. N.
Venue
Environmental Science & Technology
Published
2006-07-28
Volume
40
Issue
17
Pages
5200-5205
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2091230302
Cited by
309
References
25
FWCI
19.07
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: A Bipolar Membrane Combined with Ferric Iron Reduction as an Efficient Cathode System in Microbial Fuel Cells. https://app.cochat.ai/papers/10.1021/es0608545
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ter Heijne, A., Hamelers, H. V. M., de Wilde, V., Rozendal, R. A., & Buisman, C. J. N. (2006). A Bipolar Membrane Combined with Ferric Iron Reduction as an Efficient Cathode System in Microbial Fuel Cells. Environmental Science & Technology. https://doi.org/10.1021/es0608545

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