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Electricity generation and microbial community analysis of alcohol powered microbial fuel cells.
Bioresour Technol. 2007 Sep; 98(13):2568-77.BT

Abstract

Two different microbial fuel cell (MFC) configurations were investigated for electricity production from ethanol and methanol: a two-chambered, aqueous-cathode MFC; and a single-chamber direct-air cathode MFC. Electricity was generated in the two-chamber system at a maximum power density typical of this system (40+/-2 mW/m2) and a Coulombic efficiency (CE) ranging from 42% to 61% using ethanol. When bacteria were transferred into a single-chamber MFC known to produce higher power densities with different substrates, the maximum power density increased to 488+/-12 mW/m2 (CE = 10%) with ethanol. The voltage generated exhibited saturation kinetics as a function of ethanol concentration in the two-chambered MFC, with a half-saturation constant (Ks) of 4.86 mM. Methanol was also examined as a possible substrate, but it did not result in appreciable electricity generation. Analysis of the anode biofilm and suspension from a two-chamber MFC with ethanol using 16S rDNA-based techniques indicated that bacteria with sequences similar to Proteobacterium Core-1 (33.3% of clone library sequences), Azoarcus sp. (17.4%), and Desulfuromonas sp. M76 (15.9%) were significant members of the anode chamber community. These results indicate that ethanol can be used for sustained electricity generation at room temperature using bacteria on the anode in a MFC.

Authors+Show Affiliations

Department of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA 16802, USA.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

17097875

Citation

Kim, Jung Rae, et al. "Electricity Generation and Microbial Community Analysis of Alcohol Powered Microbial Fuel Cells." Bioresource Technology, vol. 98, no. 13, 2007, pp. 2568-77.
Kim JR, Jung SH, Regan JM, et al. Electricity generation and microbial community analysis of alcohol powered microbial fuel cells. Bioresour Technol. 2007;98(13):2568-77.
Kim, J. R., Jung, S. H., Regan, J. M., & Logan, B. E. (2007). Electricity generation and microbial community analysis of alcohol powered microbial fuel cells. Bioresource Technology, 98(13), 2568-77.
Kim JR, et al. Electricity Generation and Microbial Community Analysis of Alcohol Powered Microbial Fuel Cells. Bioresour Technol. 2007;98(13):2568-77. PubMed PMID: 17097875.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electricity generation and microbial community analysis of alcohol powered microbial fuel cells. AU - Kim,Jung Rae, AU - Jung,Sok Hee, AU - Regan,John M, AU - Logan,Bruce E, Y1 - 2006/11/13/ PY - 2005/11/17/received PY - 2006/09/12/revised PY - 2006/09/12/accepted PY - 2006/11/14/pubmed PY - 2007/8/1/medline PY - 2006/11/14/entrez SP - 2568 EP - 77 JF - Bioresource technology JO - Bioresour Technol VL - 98 IS - 13 N2 - Two different microbial fuel cell (MFC) configurations were investigated for electricity production from ethanol and methanol: a two-chambered, aqueous-cathode MFC; and a single-chamber direct-air cathode MFC. Electricity was generated in the two-chamber system at a maximum power density typical of this system (40+/-2 mW/m2) and a Coulombic efficiency (CE) ranging from 42% to 61% using ethanol. When bacteria were transferred into a single-chamber MFC known to produce higher power densities with different substrates, the maximum power density increased to 488+/-12 mW/m2 (CE = 10%) with ethanol. The voltage generated exhibited saturation kinetics as a function of ethanol concentration in the two-chambered MFC, with a half-saturation constant (Ks) of 4.86 mM. Methanol was also examined as a possible substrate, but it did not result in appreciable electricity generation. Analysis of the anode biofilm and suspension from a two-chamber MFC with ethanol using 16S rDNA-based techniques indicated that bacteria with sequences similar to Proteobacterium Core-1 (33.3% of clone library sequences), Azoarcus sp. (17.4%), and Desulfuromonas sp. M76 (15.9%) were significant members of the anode chamber community. These results indicate that ethanol can be used for sustained electricity generation at room temperature using bacteria on the anode in a MFC. SN - 0960-8524 UR - https://www.unboundmedicine.com/medline/citation/17097875/Electricity_generation_and_microbial_community_analysis_of_alcohol_powered_microbial_fuel_cells_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(06)00499-8 DB - PRIME DP - Unbound Medicine ER -