Effects of Anode Potential on the Electricity Generation Performance of Geobacter sulfurreducens

Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (5): 983.

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Effects of Anode Potential on the Electricity Generation Performance of Geobacter sulfurreducens

CAO Xiao-Xin, FAN Ming-Zhi, LIANG Peng, HUANG Xia*

State Key Joint Laboratory of Environmental Simulation and Pollution Control, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China

Received:2008-07-24 Online:2009-05-10 Published:2009-05-10
Contact: HUANG Xia, E-mail: xhuang@tsinghua.edu.cn

Abstract

Abstract:

The anode potential is the critical electrochemical parameter in microbial fuel cells(MFCs), which controls both the energy gain for the microorganisms and the output of MFC. This study aimed at elucidating the effects of anode potentials on the performance of electricigen in MFC. The “H” typed MFCs using Geobacter sulfurreducens as the inoculums were operated at different poised anode potentials. The start-up time, maximum power density and biomass were investigated. The results showed that when operated at anode potentials of -250, -100 and 50 mV versus SCE, MFCs had shorter start-up time and higher power density. The MFC at a potential of -100 mV was proved to have the highest maximum power density of 1.67 W/m³. Also the anode potential affected the biomass.

Key words: Microbial fuel cell, Geobacter sulfurreducens, Anode potential

TrendMD:

CAO Xiao-Xin, FAN Ming-Zhi, LIANG Peng, HUANG Xia*. Effects of Anode Potential on the Electricity Generation Performance of Geobacter sulfurreducens[J]. Chem. J. Chinese Universities, 2009, 30(5): 983.

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Effects of Anode Potential on the Electricity Generation Performance of Geobacter sulfurreducens

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