Occurrence of power overshoot for two-chambered MFC at nearly steady-state operation

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

20 Scopus Citations
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Author(s)

  • Lihong Liu
  • Chin-Yu Lee
  • Kuo-Chuan Ho
  • Po-Chin Nien
  • Ay Su
  • Aijie Wang
  • Nanqi Ren

Detail(s)

Original languageEnglish
Pages (from-to)13896-13899
Journal / PublicationInternational Journal of Hydrogen Energy
Volume36
Issue number21
Publication statusPublished - Oct 2011
Externally publishedYes

Abstract

At high electrical current regime power overshoot may occur in microbial fuel cell (MFC) operation with both cell voltage and electrical current declining at reduced external loads. This study demonstrated the power overshoot in a two-chamber MFC using acetate and oxygen respectively as anodic and cathodic fuels. The cell worked well until reaching 0.51 V and 790 mA/m 2 at power density of 400 mW/m2; further reducing external load leads to decrease in both cell voltage and generated current. During the noted power overshoot regime the internal resistance of MFC increased monotonically with decreasing external load. Based on the electrochemical analysis of anodic and cathodic losses, the occurrence of power overshoot is proposed to be determined by the combined resistance of intracellular loss and of extracellular electron transfer (EET) loss. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Research Area(s)

  • Extracellular electron transfer, Internal resistance, Microbial fuel cell, Power overshoot

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Occurrence of power overshoot for two-chambered MFC at nearly steady-state operation. / Liu, Lihong; Lee, Chin-Yu; Ho, Kuo-Chuan et al.
In: International Journal of Hydrogen Energy, Vol. 36, No. 21, 10.2011, p. 13896-13899.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review