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    Power generation using an activated carbon and metal mesh cathode in a microbial fuel cell

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    Type
    Article
    Authors
    Zhang, Fang cc
    Cheng, Shaoan
    Pant, Deepak
    Bogaert, Gilbert Van
    Logan, Bruce E.
    KAUST Grant Number
    KUS-11-003-13
    Date
    2009-11
    Permanent link to this record
    http://hdl.handle.net/10754/599348
    
    Metadata
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    Abstract
    An inexpensive activated carbon (AC) air cathode was developed as an alternative to a platinum-catalyzed electrode for oxygen reduction in a microbial fuel cell (MFC). AC was cold-pressed with a polytetrafluoroethylene (PTFE) binder to form the cathode around a Ni mesh current collector. This cathode construction avoided the need for carbon cloth or a metal catalyst, and produced a cathode with high activity for oxygen reduction at typical MFC current densities. Tests with the AC cathode produced a maximum power density of 1220 mW/m2 (normalized to cathode projected surface area; 36 W/m3 based on liquid volume) compared to 1060 mW/m2 obtained by Pt catalyzed carbon cloth cathode. The Coulombic efficiency ranged from 15% to 55%. These findings show that AC is a cost-effective material for achieving useful rates of oxygen reduction in air cathode MFCs. © 2009 Elsevier B.V. All rights reserved.
    Citation
    Zhang F, Cheng S, Pant D, Bogaert GV, Logan BE (2009) Power generation using an activated carbon and metal mesh cathode in a microbial fuel cell. Electrochemistry Communications 11: 2177–2179. Available: http://dx.doi.org/10.1016/j.elecom.2009.09.024.
    Sponsors
    The authors thank D.W. Jones for help with the analytical measurements and M. Hazen for EDS analysis. This research was supported by Award KUS-11-003-13 from the King Abdullah University of Science and Technology (KAUST). The research at VITO is supported by a Grant from Milieu en Energietechnologie InnovatiePlatform (Project M8463 - Sewage Plus).
    Publisher
    Elsevier BV
    Journal
    Electrochemistry Communications
    DOI
    10.1016/j.elecom.2009.09.024
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.elecom.2009.09.024
    Scopus Count
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