AbstractThere has been an increase in recent years in the number of reports of microorganisms that can generate electrical current in microbial fuel cells. Although many new strains have been identified, few strains individually produce power densities as high as strains from mixed communities. Enriched anodic biofilms have generated power densities as high as 6.9 W per m2 (projected anode area), and therefore are approaching theoretical limits. To understand bacterial versatility in mechanisms used for current generation, this Progress article explores the underlying reasons for exocellular electron transfer, including cellular respiration and possible cell-cell communication.
CitationLogan BE (2009) Exoelectrogenic bacteria that power microbial fuel cells. Nat Rev Micro 7: 375–381. Available: http://dx.doi.org/10.1038/nrmicro2113.
SponsorsI thank J. M. Regan for valuable comments and discussion, and the Air Force Office of Scientific Research and the KAUST (King Abdullah University of Science and Technology) Global Research Partnership for their support.
JournalNature Reviews Microbiology
CollectionsPublications Acknowledging KAUST Support
- Continuous power generation and microbial community structure of the anode biofilms in a three-stage microbial fuel cell system.
- Authors: Chung K, Okabe S
- Issue date: 2009 Jul
- Is resistance futile? Changing external resistance does not improve microbial fuel cell performance.
- Authors: Lyon DY, Buret F, Vogel TM, Monier JM
- Issue date: 2010 Apr
- Microbial communities and electrochemical performance of titanium-based anodic electrodes in a microbial fuel cell.
- Authors: Michaelidou U, ter Heijne A, Euverink GJ, Hamelers HV, Stams AJ, Geelhoed JS
- Issue date: 2011 Feb
- Anodic biofilms in microbial fuel cells harbor low numbers of higher-power-producing bacteria than abundant genera.
- Authors: Kiely PD, Call DF, Yates MD, Regan JM, Logan BE
- Issue date: 2010 Sep
- Convergent development of anodic bacterial communities in microbial fuel cells.
- Authors: Yates MD, Kiely PD, Call DF, Rismani-Yazdi H, Bibby K, Peccia J, Regan JM, Logan BE
- Issue date: 2012 Nov