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Anodic electron transfer mechanisms in microbial fuel cells and their energy efficiency.
Phys Chem Chem Phys. 2007 Jun 07; 9(21):2619-29.PC

Abstract

The performance of a microbial fuel cell (MFC) depends on a complex system of parameters. Apart from technical variables like the anode or fuel cell design, it is mainly the paths and mechanisms of the bioelectrochemical energy conversion that decisively determine the MFC power and energy output. Here, the electron transfer from the microbial cell to the fuel cell anode, as a process that links microbiology and electrochemistry, represents a key factor that defines the theoretical limits of the energy conversion. The determination of the energy efficiency of the electron transfer reactions, based on the biological standard potentials of the involved redox species in combination with the known paths (and stoichiometry) of the underlying microbial metabolism, is an important instrument for this discussion. Against the sometimes confusing classifications of MFCs in literature it is demonstrated that the anodic electron transfer is always based on one and the same background: the exploitation of the necessity of every living cell to dispose the electrons liberated during oxidative substrate degradation.

Authors+Show Affiliations

Institut für Biochemie, Ernst-Moritz-Arndt Universität, Felix-Hausdorff-Strasse 4, Greifswald, Germany. uweschr@uni-greifswald.de

Pub Type(s)

Journal Article
Review

Language

eng

PubMed ID

17627307

Citation

Schröder, Uwe. "Anodic Electron Transfer Mechanisms in Microbial Fuel Cells and Their Energy Efficiency." Physical Chemistry Chemical Physics : PCCP, vol. 9, no. 21, 2007, pp. 2619-29.
Schröder U. Anodic electron transfer mechanisms in microbial fuel cells and their energy efficiency. Phys Chem Chem Phys. 2007;9(21):2619-29.
Schröder, U. (2007). Anodic electron transfer mechanisms in microbial fuel cells and their energy efficiency. Physical Chemistry Chemical Physics : PCCP, 9(21), 2619-29.
Schröder U. Anodic Electron Transfer Mechanisms in Microbial Fuel Cells and Their Energy Efficiency. Phys Chem Chem Phys. 2007 Jun 7;9(21):2619-29. PubMed PMID: 17627307.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Anodic electron transfer mechanisms in microbial fuel cells and their energy efficiency. A1 - Schröder,Uwe, Y1 - 2007/05/09/ PY - 2007/7/14/pubmed PY - 2007/9/26/medline PY - 2007/7/14/entrez SP - 2619 EP - 29 JF - Physical chemistry chemical physics : PCCP JO - Phys Chem Chem Phys VL - 9 IS - 21 N2 - The performance of a microbial fuel cell (MFC) depends on a complex system of parameters. Apart from technical variables like the anode or fuel cell design, it is mainly the paths and mechanisms of the bioelectrochemical energy conversion that decisively determine the MFC power and energy output. Here, the electron transfer from the microbial cell to the fuel cell anode, as a process that links microbiology and electrochemistry, represents a key factor that defines the theoretical limits of the energy conversion. The determination of the energy efficiency of the electron transfer reactions, based on the biological standard potentials of the involved redox species in combination with the known paths (and stoichiometry) of the underlying microbial metabolism, is an important instrument for this discussion. Against the sometimes confusing classifications of MFCs in literature it is demonstrated that the anodic electron transfer is always based on one and the same background: the exploitation of the necessity of every living cell to dispose the electrons liberated during oxidative substrate degradation. SN - 1463-9076 UR - https://www.unboundmedicine.com/medline/citation/17627307/Anodic_electron_transfer_mechanisms_in_microbial_fuel_cells_and_their_energy_efficiency_ L2 - https://doi.org/10.1039/b703627m DB - PRIME DP - Unbound Medicine ER -