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  • performance of planar and cylindrical carbon electrodes at sedimentary microbial fuel cells

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 750
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper presents data obtained using an indigenous microbial community contained in anaerobic sediments (mud) collected from the shore of the río de la plata river (south america). after the sedimentary microbial fuel cells were assembled the evolution of current and power vs. time was studied. two types of commercially available graphite materials were used as electrodes, which differ mainly in shape and size. in some experiments, an external carbon source (acetate) increased the power generation rate. the maximum power density observed in the aforementioned condition was 19.57 ± 0.35 and 8.72 ± 1.39 mw/m2 using rod and graphite disk electrodes, respectively. the better performance of the rod electrodes can be explained, at least in part, by an enhanced rate of mass transport by radial diffusion. dgge fingerprints were used to study the electrogenic community growing over the electrodes.

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