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J Korean Soc Environ Eng > Volume 37(9); 2015 > Article
J Korean Soc Environ Eng 2015;37(9): 499-504. doi: https://doi.org/10.4491/KSEE.2015.37.9.499
니켈을 함유한 콜타르 피치 결합제를 이용한 미생물연료전지 산화전극 성능개선
윤형선, 송영채, 최태선
국립한국해양대학교 환경공학과
Improvement of Anodic Performance by Using CTP Binder Containg Nickel
Hyung-Sun Yoon, Young-Chae Song, Tae-Seon Choi
Department of Environmental Engineering, Korea Maritime and Ocean University
Corresponding author  Young-Chae Song ,Tel: 051-410-4417, Fax: 051-410-4415, Email: soyc@kmou.ac.kr
Received: September 2, 2015;  Revised: September 7, 2015;  Accepted: September 11, 2015.  Published online: September 30, 2015.
ABSTRACT
The composite anodes of expanded graphite (EG) and multiwall carbon nanotube (MWCNT) for microbial fuel cells were fabricated by using coal tar pitch (CTP) binder containing nickel (Ni), and the effect of the anodes with the binders on the performance of the MFCs were examined in a batch reactor. During the start-up of the MFCs, quick increase in voltage was observed after a short lag phase time, indicating that the CTP binder is biocompatible. The biomass attatched on the anode surface was more at higher Ni content in the binder, as well as at smaller amount of CTP binder for the fabrication of the anode. The internal resistance of the MFC was smaller for the anode with more biomass. Based on the results, the ideal combination of CTP and Ni for the CTP binder for anode was 2 g and 0.2 g, respectively. The maximum power density was 731.8 mW/m2, which was higher 23.7% than the anode with Nafion binder as control. The CTP binder containing Ni for the fabrication of anode is a good alternative in terms of performance and economics of MFCs.
Key Words: Coal Tar Pitch, Nickel, Anode Binder, Microbial Fuel Cells
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