Influence of initial biofilm growth on electrochemical behavior in dual-chambered mediator microbial fuel cell

ZHAO Yu; LI Peng; WANG Xiao-bin; SUN Yan-ping

Volume 40 Issue 08

Aug. 2012

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Article Navigation > Journal of Fuel Chemistry and Technology > 2012 > (08): 967-972

ZHAO Yu, LI Peng, WANG Xiao-bin, SUN Yan-ping. Influence of initial biofilm growth on electrochemical behavior in dual-chambered mediator microbial fuel cell[J]. Journal of Fuel Chemistry and Technology, 2012, (08): 967-972.

Citation:

ZHAO Yu, LI Peng, WANG Xiao-bin, SUN Yan-ping. Influence of initial biofilm growth on electrochemical behavior in dual-chambered mediator microbial fuel cell[J]. Journal of Fuel Chemistry and Technology, 2012, (08): 967-972.

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Influence of initial biofilm growth on electrochemical behavior in dual-chambered mediator microbial fuel cell

Chemical Engineering Department, Taiyuan University of Technology, Taiyuan 030024, China

Received Date: 2012-02-04
Rev Recd Date: 2012-04-16
Publish Date: 2012-08-31

Abstract

Abstract

Electroactive biofilms were formed on carbon paper under constant external resistance of 1 000 Ω using Escherichia coli as inoculum and glucose as substrate. In this paper, the performance of the biofilm growth of the microorganism directly on the anode was studied. To form a mature biofilm, five fed-batch cycles were repeated with every period of 1 day. The electrochemical characterization of the microbial fuel cell was evaluated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and polarization behavior. It was evident that the enhanced MFC performance was associated with the development of the biofilm. With formation of the mature anode biofilm, the anode polarization resistance was decreased by 66.5%, the anode potential also gradually decreased, while peak output power density was enhanced over 260%.
- microbial fuel cell,
- biofilm,
- electrochemical activity

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References(20)

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