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The effects of conductivity and CNT cathode on electricity generation in air-cathode microbial fuel cell

공기양극 미생물연료전지 시스템에서 전력발생특성에 미치는 전기전도도와 CNT 양극의 영향

  • 유규선 (전주대학교 토목환경공학과) ;
  • 박현수 (전주대학교 토목환경공학과) ;
  • 송영채 (한국해양대학교 환경공학과) ;
  • 우정희 (한국해양대학교 환경공학과) ;
  • 이채영 (수원대학교 토목공학과) ;
  • 정재우 (경남과학기술대학교 환경공학과)
  • Published : 2012.06.15

Abstract

The characteristics of power generation were investigated by changing the electrical conductivity from 10 to 40mS/cm using air-cathode microbial fuel cell, which had graphite fiber fabric(GFF) anode. There were three kinds of cathode used: one was carbon cloth cathode coated with Pt, another was carbon nanotube(CNT) cathode with non-precious catalyst of Fe-Cu-Mn, and the other was carbon nanotube(CNT) cathode without any catalyst. When it was operated in batch mode, power density of 1369.5mW/$m^2$ was achieved at conductivity of 20mS/cm. Power density from MFC with CNT cathode coated with multi-catalyst of Fe-Cu-Mn was shown about 985.55mW/$m^2$, which was 75.1% compared the power density of carbon cloth coated with Pt. This meant that CNT cathode coated with multi-catalyst of Fe-Cu-Mn could be an alternative of carbon cloth cathode.

Keywords

References

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