Abstract
Two-chamber microbial fuel cells (MFCs) were exposed to static magnetic field (MF) of field strengths 0 mT, 100 mT, 200 mT, and 300 mT, and the electricity production of the MFCs under the influence of the MF was investigated using electrochemical methods. The results show that the start-up periods of MFCs in MF were shorter than that without. The MFC with a 100-mT MF needed the shortest time (7 days) to obtain a stable voltage output. The maximum power density of 1.56 W m-2 was for a field strength of 200 mT, which was the best among the MFCs. The impact of the MF on the charge transfer resistances (Rct) of the anode, cathode, and whole MFC was analyzed by electrochemical impedance spectroscopy (EIS). A new method was developed to extend the equivalent circuit (EC) model to the whole MFC by connecting the anode and cathode models in series. The simulated results show that anode R ct values are much higher compared than at the cathode. The cell and anode Rct values were reduced by 56.6% and 57.2%, respectively, for the 200-mT MF. It was also found that there is an optimal intensity MF range for the microorganisms.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 58-63 |
| Number of pages | 6 |
| Journal | Journal of Power Sources |
| Volume | 237 |
| DOIs | |
| State | Published - Apr 8 2013 |
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Keywords
- Charge transfer resistance
- Electrochemical impendence spectroscopy
- Magnetic field
- Microbial fuel cell
- Power density
Cite this
Electricity production and electrochemical impedance modeling of microbial fuel cells under static magnetic field. / Yin, Yao; Huang, Guangtuan; Tong, Yiran; Liu, Yongdi; Zhang, Lehua.
In: Journal of Power Sources, Vol. 237, 08.04.2013, p. 58-63.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electricity production and electrochemical impedance modeling of microbial fuel cells under static magnetic field
AU - Yin, Yao
AU - Huang, Guangtuan
AU - Tong, Yiran
AU - Liu, Yongdi
AU - Zhang, Lehua
PY - 2013/4/8
Y1 - 2013/4/8
N2 - Two-chamber microbial fuel cells (MFCs) were exposed to static magnetic field (MF) of field strengths 0 mT, 100 mT, 200 mT, and 300 mT, and the electricity production of the MFCs under the influence of the MF was investigated using electrochemical methods. The results show that the start-up periods of MFCs in MF were shorter than that without. The MFC with a 100-mT MF needed the shortest time (7 days) to obtain a stable voltage output. The maximum power density of 1.56 W m-2 was for a field strength of 200 mT, which was the best among the MFCs. The impact of the MF on the charge transfer resistances (Rct) of the anode, cathode, and whole MFC was analyzed by electrochemical impedance spectroscopy (EIS). A new method was developed to extend the equivalent circuit (EC) model to the whole MFC by connecting the anode and cathode models in series. The simulated results show that anode R ct values are much higher compared than at the cathode. The cell and anode Rct values were reduced by 56.6% and 57.2%, respectively, for the 200-mT MF. It was also found that there is an optimal intensity MF range for the microorganisms.
AB - Two-chamber microbial fuel cells (MFCs) were exposed to static magnetic field (MF) of field strengths 0 mT, 100 mT, 200 mT, and 300 mT, and the electricity production of the MFCs under the influence of the MF was investigated using electrochemical methods. The results show that the start-up periods of MFCs in MF were shorter than that without. The MFC with a 100-mT MF needed the shortest time (7 days) to obtain a stable voltage output. The maximum power density of 1.56 W m-2 was for a field strength of 200 mT, which was the best among the MFCs. The impact of the MF on the charge transfer resistances (Rct) of the anode, cathode, and whole MFC was analyzed by electrochemical impedance spectroscopy (EIS). A new method was developed to extend the equivalent circuit (EC) model to the whole MFC by connecting the anode and cathode models in series. The simulated results show that anode R ct values are much higher compared than at the cathode. The cell and anode Rct values were reduced by 56.6% and 57.2%, respectively, for the 200-mT MF. It was also found that there is an optimal intensity MF range for the microorganisms.
KW - Charge transfer resistance
KW - Electrochemical impendence spectroscopy
KW - Magnetic field
KW - Microbial fuel cell
KW - Power density
UR - http://www.scopus.com/inward/record.url?scp=84875718298&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875718298&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2013.02.080
DO - 10.1016/j.jpowsour.2013.02.080
M3 - Article
AN - SCOPUS:84875718298
VL - 237
SP - 58
EP - 63
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
ER -