Electricity production in salt bridge and membrane microbial fuel cells

Booki Min, Ramnarayanan Ramanathan, Shaoan Cheng, Bruce Logan

Research output: Contribution to journalConference articlepeer-review


Two types of microbial fuel cells (MFC) were compared to determine the effect of proton exchange on power generation: a salt bridge MFC and a membrane (Nafion®) MFC. The membrane system generated up to two orders of magnitude more power (40 mw/sq m) than the salt bridge system (0.3 mw/sq m). Power generation difference between the two systems was primarily due to differences in internal resistance as measured using electrochemical impedance spectroscopy. The internal resistance of the salt bridge MFC was about 14 times higher than that in the membrane MFC. Decreasing the internal resistance could increase power output in MFC. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA 8/22-26/2004).

Original languageEnglish (US)
Pages (from-to)ENVR-197
JournalACS National Meeting Book of Abstracts
Issue number1
StatePublished - 2004
EventAbstracts of Papers - 228th ACS National Meeting - Philadelphia, PA, United States
Duration: Aug 22 2004Aug 26 2004

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering


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