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Electron transfer interpretation of the biofilm-coated anode of a microbial fuel cell and the cathode modification effects on its power.
Yang, Yamin; Choi, Chansoo; Xie, Guorong; Park, Jong-Deok; Ke, Shao; Yu, Jong-Sung; Zhou, Juanjuan; Lim, Bongsu.
Afiliación
  • Yang Y; Department of Applied Chemistry, Daejeon University, Daejeon 34520, Republic of Korea.
  • Choi C; Department of Applied Chemistry, Daejeon University, Daejeon 34520, Republic of Korea. Electronic address: cse110@dju.ac.kr.
  • Xie G; Department of Applied Chemistry, Daejeon University, Daejeon 34520, Republic of Korea.
  • Park JD; Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
  • Ke S; Department of Environmental Engineering, Daejeon University, Daejeon 34520, Republic of Korea.
  • Yu JS; Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea. Electronic address: jsyu@dgist.ac.kr.
  • Zhou J; Department of Environmental Engineering, Daejeon University, Daejeon 34520, Republic of Korea.
  • Lim B; Department of Environmental Engineering, Daejeon University, Daejeon 34520, Republic of Korea. Electronic address: bslim@dju.ac.kr.
Bioelectrochemistry ; 127: 94-103, 2019 Jun.
Article en En | MEDLINE | ID: mdl-30771661
Biofilm-coated electrodes and outer cell membrane-mimicked electrodes were examined to verify an extracellular electron transfer mechanism using Marcus theory for a donor-acceptor electron transfer. Redox couple-bound membrane electrodes were prepared by impregnating redox coenzymes into Nafion films on carbon cloth electrodes. The electron transfer was believed to occur sequentially from acetate to nicotinamide adenine dinucleotide (NAD), c-type cytochrome, flavin mononucleotide (FMN) (or riboflavin (RBF)) and the anode substrate. Excellent polarisation and power density characteristics were contributed by the modification of the cathode with a high-surface-area ordered mesoporous carbon or a hollow core-mesoporous shell carbon. The maximum power density of the microbial fuel cell (MFC) could be improved by a factor of two mainly due to the accelerated electron consumption by modifying the cathode surfaces within three-dimensionally interconnected mesoporous carbon particles, and the anode was coated with a mixed culture of anaerobic bacteria.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fuentes de Energía Bioeléctrica Idioma: En Revista: Bioelectrochemistry Asunto de la revista: BIOQUIMICA Año: 2019 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fuentes de Energía Bioeléctrica Idioma: En Revista: Bioelectrochemistry Asunto de la revista: BIOQUIMICA Año: 2019 Tipo del documento: Article Pais de publicación: Países Bajos