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dc.contributor.authorRhoads, Alison Nicole
dc.contributor.authorBeyenal, Haluk
dc.contributor.authorLewandowski, Zbigniew
dc.identifier.citationRhoads A, Beyenal H, Lewandowski Z, "Microbial fuel cell using anaerobic respiration as an anodic reaction and biomineralized manganese as a cathodic reactant," Environ Sci Technol, 2005 39(12):4666-4671en_US
dc.description.abstractWe have operated a microbial fuel cell in which glucose was oxidized by Klebsiella pneumoniae in the anodic compartment, and biomineralized manganese oxides, deposited by Leptothrix discophora, were electrochemically reduced in the cathodic compartment. In the anodic compartment, to facilitate the electron transfer from glucose to the graphite electrode, we added a redox mediator, 2-hydroxy-1,4-naphthoquinone. We did not add any redox mediator to the cathodic compartment because the biomineralized manganese oxides were deposited on the surface of a graphite electrode and were reduced directly by electrons from the electrode. We have demonstrated that biomineralized manganese oxides are superior to oxygen when used as cathodic reactants in microbial fuel cells. The current density delivered by using biomineralized manganese oxides as the cathodic reactant was almost 2 orders of magnitude higher than that delivered using oxygen. Several fuel cells were operated for 500 h, reaching anodic potentials of -441.5 ± 31 mVSCE and cathodic potentials of +384.5 ± 64 mVSCE. When the electrodes were connected by a 50 resistor, the fuel cell delivered the peak power density of 126.7 ± 31.5 mW/m2.en_US
dc.titleMicrobial fuel cell using anaerobic respiration as an anodic reaction and biomineralized manganese as a cathodic reactanten_US
mus.citation.journaltitleEnvironmental Science & Technologyen_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US

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