Double-chamber microbial fuel cells started up under room and low temperatures

This study examined the performances of two double-chamber microbial fuel cells (MFCs) at 25 °C and 15 °C. After successful startup, the cell temperature of MFC A was decreased from 25 to 15 °C, yielding a sudden breakdown of the entire system. Conversely, the MFC B, started up at 15 °C, delivering...

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Bibliographic Details
Published in:International journal of hydrogen energy 2013-11, Vol.38 (35), p.15574-15579
Main Authors: Liu, Lihong, Tsyganova, Olga, Lee, Duu-Jong, Chang, Jo-Shu, Wang, Aijie, Ren, Nanqi
Format: Article
Language:English
Subjects:
Alternative fuels. Production and utilization
Anodic
Anodic biofilm
Applied sciences
Bacteria
Biochemical fuel cells
Biofilms
Breakdown
Density
Energy
Exact sciences and technology
Fuels
Hydrogen
Hydrogen-based energy
Microbial community
Microbial fuel cell (MFC)
Microorganisms
Psychrophilic bacteria
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Summary:This study examined the performances of two double-chamber microbial fuel cells (MFCs) at 25 °C and 15 °C. After successful startup, the cell temperature of MFC A was decreased from 25 to 15 °C, yielding a sudden breakdown of the entire system. Conversely, the MFC B, started up at 15 °C, delivering higher power density at 25 °C than MFC A at the same temperature. The electrochemical analysis revealed that the MFC B had lower anodic resistance than MFC A. Additionally, a negative temperature dependence of the polarization resistances of the anodic biofilm was noted, a novel phenomenon only reported in this double-chambered study. Microbial analysis showed that the psychrophilic bacteria were enriched in anodic biofilms of MFC B, which likely contributed to the robust cell performance of the present double-chambered MFCs.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2013.02.090