지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제23권 제12호
- 발행연도
- 2013.1
- 수록면
- 1,765 - 1,773 (9page)
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The cathode reaction is one of the most seriously limiting factors in a microbial fuel cell (MFC).
The critical dissolved oxygen (DO) concentration of a platinum-loaded graphite electrode was reported as 2.2 mg/l, about 10-fold higher than an aerobic bacterium. A series of MFCs were run with the cathode compartment inoculated with activated sludge (biotic) or not (abiotic) on platinum-loaded or bare graphite electrodes. At the beginning of the operation, the current values from MFCs with a biocathode and abiotic cathode were 2.3 ± 0.1 and 2.6 ± 0.2 mA,respectively, at the air-saturated water supply in the cathode. The current from MFCs with an abiotic cathode did not change, but that of MFCs with a biotic cathode increased to 3.0 mA after 8 weeks. The coulomb efficiency was 59.6% in the MFCs with a biotic cathode, much higher than the value of 15.6% of the abiotic cathode. When the DO supply was reduced, the current from MFCs with an abiotic cathode decreased more sharply than in those with a biotic cathode. When the respiratory inhibitor azide was added to the catholyte, the current decreased in MFCs with a biotic cathode but did not change in MFCs with an abiotic cathode.
The power density was higher in MFCs with a biotic cathode (430 W/m3 cathode compartment) than the abiotic cathode MFC (257 W/m3 cathode compartment). Electron microscopic observation revealed nanowire structures in biofilms that developed on both the anode and on the biocathode. These results show that an electron-consuming bacterial consortium can be used as a cathode catalyst to improve the cathode reaction.
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참고문헌 (23)
참고문헌 신청
Angenent L / 2004 / Production of bioenergy and biochemicals from industrial and agricultural wastewater / Trends Biotechnol 22 : 477 ~ 485
Cheng S / 2006 / Power densities using different cathode catalysts (Pt and CoTMPP) and polymer binders (Nafion and PTFE) in single chamber microbial fuel cells / Environ. Sci
Gil GC / 2003 / Operational parameters affecting the performance of a mediator-less microbial fuel cell / Biosens. Bioelectron 18 : 327 ~ 324
Gorby YA / 2005 / Electrically conductive bacterial nanowires produced by Shewanella oneidensis s train MR- 1 and other microorganisms / PNAS 103 : 11358 ~ 11363
He Z / 2009 / Electricity production coupled to ammonium in a microbial fuel cell / Environ. Sci. Technol 43 : 3391 ~ 3397
Cheng S / 2006 / Power densities using different cathode catalysts (Pt and CoTMPP) and polymer binders (Nafion and PTFE) in single chamber microbial fuel cells / Environ. Sci
Gil GC / 2003 / Operational parameters affecting the performance of a mediator-less microbial fuel cell / Biosens. Bioelectron 18 : 327 ~ 324
Gorby YA / 2005 / Electrically conductive bacterial nanowires produced by Shewanella oneidensis s train MR- 1 and other microorganisms / PNAS 103 : 11358 ~ 11363
He Z / 2009 / Electricity production coupled to ammonium in a microbial fuel cell / Environ. Sci. Technol 43 : 3391 ~ 3397
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