title: Power density enhancement of anion-exchange membrane-installed microbial fuel cell under bicarbonate-buffered cathode condition.
abstract: We introduce a high-performance microbial fuel cell (MFC) that was operated using a 0.1 M bicarbonate buffer as the cathodic electrolyte. The MFC had a 136.42 mW/m(2) maximum power density under continuous feeding of 5 mM acetate as fuel. Results of the electrode potential measurements showed that the cathode potential of the bicarbonate-buffered condition was higher than the phosphate-buffered condition, although the phosphate condition had less interfacial resistance between the membrane and electrolyte. Therefore, we posit here that the increased power of the bicarbonate-buffered MFC may be caused by the higher cathode potential rather than by the interfacial membrane-electrolyte resistance.
authors: School of Environmental Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea.
authors: Jingmei
authors: J
authors: Piao
authors: Junyeong
authors: J
authors: An
authors: Phuc Thi
authors: PT
authors: Ha
authors: Taeyoung
authors: T
authors: Kim
authors: Jae Kyung
authors: JK
authors: Jang
authors: Hyunsoo
authors: H
authors: Moon
authors: In Seop
authors: IS
authors: Chang
mesh_terms: D000085:Acetates / Q000378:metabolism; D001639:Bicarbonates / Q000378:metabolism*; D001674:Bioelectric Energy Sources; D002021:Buffers; D004560:Electricity; D004566:Electrodes / Q000382:microbiology*; D008566:Membranes
chemical_list: D000085:Acetates; D001639:Bicarbonates; D002021:Buffers