Energies 2010, 3(4), 592-606; doi:10.3390/en3040592
Article

Assessment of the Effects of Flow Rate and Ionic Strength on the Performance of an Air-Cathode Microbial Fuel Cell Using Electrochemical Impedance Spectroscopy

1email, 1,2email, 3email and 4,* email
Received: 5 January 2010; in revised form: 27 February 2010 / Accepted: 15 March 2010 / Published: 26 March 2010
(This article belongs to the Special Issue Fuel Cells)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Impedance changes of the anode, cathode and solution were examined for an air-cathode microbial fuel cell (MFC) under varying conditions. An MFC inoculated with a pre-enriched microbial culture resulted in a startup time of less than ten days. Over this period, the anode impedance decreased below the cathode impedance, suggesting a cathode-limited power output. Increasing the anode flow rate did not impact the anode impedance significantly, but it decreased the cathode impedance by 65%. Increasing the anode-medium ionic strength also decreased the cathode impedance. These impedance results provide insight into electron and proton transport mechanisms and can be used to improve MFC performance.
Keywords: biofuel cell; internal resistances; electrogenic; anode impedance; capacitance
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MDPI and ACS Style

Aaron, D.; Tsouris, C.; Hamilton, C.Y.; Borole, A.P. Assessment of the Effects of Flow Rate and Ionic Strength on the Performance of an Air-Cathode Microbial Fuel Cell Using Electrochemical Impedance Spectroscopy. Energies 2010, 3, 592-606.

AMA Style

Aaron D, Tsouris C, Hamilton CY, Borole AP. Assessment of the Effects of Flow Rate and Ionic Strength on the Performance of an Air-Cathode Microbial Fuel Cell Using Electrochemical Impedance Spectroscopy. Energies. 2010; 3(4):592-606.

Chicago/Turabian Style

Aaron, Doug; Tsouris, Costas; Hamilton, Choo Y.; Borole, Abhijeet P. 2010. "Assessment of the Effects of Flow Rate and Ionic Strength on the Performance of an Air-Cathode Microbial Fuel Cell Using Electrochemical Impedance Spectroscopy." Energies 3, no. 4: 592-606.

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