지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
The internal resistance of microbial fuel cell (MFC) using stainless steel skein for oxidizing electrode was investigated and the factors affecting the voltage generation were identified. We also investigated the effect of power management system (PMS) on the usability for MFC and the removal efficiency of organic pollutants. The performance of a stack microbial fuel cell connected with (PMS) or PMS+LED was analyzed by the voltage generation and organic matter reduction. The maximum power density of the unit cells was found to be 5.82 W/m3 at 200 Ω. The maximum current density was 47.53 A/m3 without power overshoot even under 1 Ω. The ohmic resistance (Rs) and the charge transfer resistance (Rct) of the oxidation electrode using stainless steel skein electrode, were 0.56 Ω and 0.02 Ω, respectively. However, the sum of internal resistance for reduction electrode using graphite felts loaded Pt/C catalyst was 6.64 Ω. Also, in order to understand the internal resistance, the current interruption method was used by changing the external resistance as 50 Ω, 300 Ω, 5 kΩ. It has been shown that the ohm resistance (Rs) decreased with the external resistance. In the case of a series-connected microbial fuel cell, the reversal phenomenon occurred even though two cells having the similar performance. However, the output of the PMS constantly remained for 20 hours even when voltage reversal occurred. Also the removal ability of organic pollutants (SCOD) was not reduced. As a result of this study, it was found that buffering effect for a certain period of time when the voltage reversal occurred during the operation of the microbial fuel cell did not have a serious effect on the energy loss or the operation of the microbial fuel cell.
목차
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참고문헌 (25)
참고문헌 신청
장인섭 / 2006 / Electrochemically Active Bacteria (EAB) and Mediator-Less Microbial Fuel Cells / Journal of Microbiology and Biotechnology 16(2):163~177
H. Liu / 2004 / Electricity generation using an aircathode single chamber microbial fuel cell in the presence and absence of a proton exchange membrane / Environ. Sci. Technol 38:4040~4046
J. K. Jang / 2004 / Construction and operation of a novel mediator-and membrane-less microbial fuel cell / Process Biochemistry 39:1007~1012
G. C. Gil / 2003 / Operational parameters affecting the performance of a mediator-less microbial fuel cell / Biosens. Bioelectron 18(4):327~334
Z. He / 2005 / Electricity generation from artificial wastewater using an upflow microbial fuel cell / Environ. Sci. Technol 39:5262~5267
H. Liu / 2004 / Electricity generation using an aircathode single chamber microbial fuel cell in the presence and absence of a proton exchange membrane / Environ. Sci. Technol 38:4040~4046
J. K. Jang / 2004 / Construction and operation of a novel mediator-and membrane-less microbial fuel cell / Process Biochemistry 39:1007~1012
G. C. Gil / 2003 / Operational parameters affecting the performance of a mediator-less microbial fuel cell / Biosens. Bioelectron 18(4):327~334
Z. He / 2005 / Electricity generation from artificial wastewater using an upflow microbial fuel cell / Environ. Sci. Technol 39:5262~5267
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