title: Bioelectricity production using a new electrode in a microbial fuel cell.
abstract: Electrode materials play a key role in enhancing the electricity generation in the microbial fuel cell (MFC). In this study, a new material (Ti-TiO(2)) was used as an anode electrode and compared with a graphite electrode for electricity generation. Current densities were 476.6 and 31 mA/m(2) for Ti-TiO(2) and graphite electrodes, respectively. The PCR-DGGE analysis of enriched microbial communities from estuary revealed that MFC reactors were dominated by Shewanella haliotis, Enterococcus sp., and Enterobacter sp. Bioelectrochemical kinetic works in the MFC with Ti-TiO(2) electrode revealed that the parameters by non-linear curve fitting with the confidence bounds of 95% gave good fit with the kinetic constants of η (difference between the anode potential and anode potential giving one-half of the maximum current density) = 0.35 V, K (s) (Half-saturation constant) = 2.93 mM and J (max) = 0.39 A/m(2) for T = 298 K and F = 96.485 C/mol-e(-). From the results observed, it is clear that Ti-TiO(2) electrode is a promising candidate for electricity generation in MFC.
authors.affiliation: Department of Environmental Engineering, Yildiz Technical University, Istanbul, Turkey. bozkaya@yildiz.edu.tr
authors.forename: Bestamin
authors.initials: B
authors.lastname: Ozkaya
authors.forename: Busra
authors.initials: B
authors.lastname: Akoglu
authors.forename: Dogan
authors.initials: D
authors.lastname: Karadag
authors.forename: Gökcen
authors.initials: G
authors.lastname: Acı
authors.forename: Ergin
authors.initials: E
authors.lastname: Taskan
authors.forename: Halil
authors.initials: H
authors.lastname: Hasar
mesh_terms: D001483:Base Sequence; D001674:Bioelectric Energy Sources; D017931:DNA Primers; D058645:Denaturing Gradient Gel Electrophoresis; D004566:Electrodes; D004754:Enterobacter / Q000378:metabolism; D016983:Enterococcus / Q000378:metabolism; D006108:Graphite; D007700:Kinetics; D016133:Polymerase Chain Reaction; D020592:Shewanella / Q000378:metabolism
chemical_list: D017931:DNA Primers; D006108:Graphite