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Investigating microbial fuel cell bioanode performance under different cathode conditions.
Biotechnol Prog. 2009 Nov-Dec; 25(6):1630-6.BP

Abstract

A compact, three-in-one, flow-through, porous, electrode design with minimal electrode spacing and minimal dead volume was implemented to develop a microbial fuel cell (MFC) with improved anode performance. A biofilm-dominated anode consortium enriched under a multimode, continuous-flow regime was used. The increase in the power density of the MFC was investigated by changing the cathode (type, as well as catholyte strength) to determine whether anode was limiting. The power density obtained with an air-breathing cathode was 56 W/m(3) of net anode volume (590 mW/m(2)) and 203 W/m(3) (2160 mW/m(2)) with a 50-mM ferricyanide-based cathode. Increasing the ferricyanide concentration and ionic strength further increased the power density, reaching 304 W/m(3) (3220 mW/m(2), with 200 mM ferricyanide and 200 mM buffer concentration). The increasing trend in the power density indicated that the anode was not limiting and that higher power densities could be obtained using cathodes capable of higher rates of oxidation. The internal solution resistance for the MFC was 5-6 Omega, which supported the improved performance of the anode design. A new parameter defined as the ratio of projected surface area to total anode volume is suggested as a design parameter to relate volumetric and area-based power densities and to enable comparison of various MFC configurations.

Authors+Show Affiliations

Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6226, USA. borolea@ornl.govNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

19731337

Citation

Borole, Abhijeet P., et al. "Investigating Microbial Fuel Cell Bioanode Performance Under Different Cathode Conditions." Biotechnology Progress, vol. 25, no. 6, 2009, pp. 1630-6.
Borole AP, Hamilton CY, Aaron DS, et al. Investigating microbial fuel cell bioanode performance under different cathode conditions. Biotechnol Prog. 2009;25(6):1630-6.
Borole, A. P., Hamilton, C. Y., Aaron, D. S., & Tsouris, C. (2009). Investigating microbial fuel cell bioanode performance under different cathode conditions. Biotechnology Progress, 25(6), 1630-6. https://doi.org/10.1002/btpr.273
Borole AP, et al. Investigating Microbial Fuel Cell Bioanode Performance Under Different Cathode Conditions. Biotechnol Prog. 2009 Nov-Dec;25(6):1630-6. PubMed PMID: 19731337.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Investigating microbial fuel cell bioanode performance under different cathode conditions. AU - Borole,Abhijeet P, AU - Hamilton,Choo Y, AU - Aaron,Douglas S, AU - Tsouris,Costas, PY - 2009/9/5/entrez PY - 2009/9/5/pubmed PY - 2010/4/3/medline SP - 1630 EP - 6 JF - Biotechnology progress JO - Biotechnol Prog VL - 25 IS - 6 N2 - A compact, three-in-one, flow-through, porous, electrode design with minimal electrode spacing and minimal dead volume was implemented to develop a microbial fuel cell (MFC) with improved anode performance. A biofilm-dominated anode consortium enriched under a multimode, continuous-flow regime was used. The increase in the power density of the MFC was investigated by changing the cathode (type, as well as catholyte strength) to determine whether anode was limiting. The power density obtained with an air-breathing cathode was 56 W/m(3) of net anode volume (590 mW/m(2)) and 203 W/m(3) (2160 mW/m(2)) with a 50-mM ferricyanide-based cathode. Increasing the ferricyanide concentration and ionic strength further increased the power density, reaching 304 W/m(3) (3220 mW/m(2), with 200 mM ferricyanide and 200 mM buffer concentration). The increasing trend in the power density indicated that the anode was not limiting and that higher power densities could be obtained using cathodes capable of higher rates of oxidation. The internal solution resistance for the MFC was 5-6 Omega, which supported the improved performance of the anode design. A new parameter defined as the ratio of projected surface area to total anode volume is suggested as a design parameter to relate volumetric and area-based power densities and to enable comparison of various MFC configurations. SN - 1520-6033 UR - https://www.unboundmedicine.com/medline/citation/19731337/Investigating_microbial_fuel_cell_bioanode_performance_under_different_cathode_conditions_ L2 - https://doi.org/10.1002/btpr.273 DB - PRIME DP - Unbound Medicine ER -