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Development of an Osmium Redox Polymer Mediated Bioanode and Examination of Its Performance in Gluconobacter oxydans Based Microbial Fuel Cell

Aslan, Sema; Conghaile, Peter O.; Leech, Dónal; Gorton, Lo LU ; Timur, Suna and Anik, Ulku (2017) In Electroanalysis
Abstract

Gluconobacter oxydans (G. oxydans) cells together with an osmium redox polymer (ORP) [Osmium (2,2'-bipyridine)2(poly-vinylimidazole)10Cl]Cl were combined with a glassy carbon paste electrode (GCPE) to form a bioanode for a microbial fuel cell (MFC) based on G. oxydans. Although there are G.oxydans/ ORP combined bioanode in the literature, as far as it is known, this system is the first one where G.oxydans/ORP bioanode is combined with a cathode and a MFC is formed. After the optimization of experimental parameters, analytical characteristics of ORP/G. oxydans/GCPE bioanode were investigated. ORP/G. oxydans/GCPE showed two linear ranges for ethanol substrate as 1.0-30mM (R2=0.902) and 30-500mM (R2=0.997) and... (More)

Gluconobacter oxydans (G. oxydans) cells together with an osmium redox polymer (ORP) [Osmium (2,2'-bipyridine)2(poly-vinylimidazole)10Cl]Cl were combined with a glassy carbon paste electrode (GCPE) to form a bioanode for a microbial fuel cell (MFC) based on G. oxydans. Although there are G.oxydans/ ORP combined bioanode in the literature, as far as it is known, this system is the first one where G.oxydans/ORP bioanode is combined with a cathode and a MFC is formed. After the optimization of experimental parameters, analytical characteristics of ORP/G. oxydans/GCPE bioanode were investigated. ORP/G. oxydans/GCPE showed two linear ranges for ethanol substrate as 1.0-30mM (R2=0.902) and 30-500mM (R2=0.997) and analytical range as 1.0-1000mM. Limit of detection (3.0s/m) and limit of quantification (10s/m) values were calculated as 1.29mM and 4.30mM respectively where the RSD value was 1.16% for n=5. Combining the developed bioanode in the presence of 5.0mM K3Fe(CN)6 mediator with a Pt wire cathode a double compartment MFC was obtained via a salt bridge. G. oxydans/GCPE bioanode based MFC had maximum power density of 0.133 μW cm-2 (at 33.5 mV), maximum current density as 8.73 μA cm-2 and OCP value of 156 mV. On the other hand, ORP/G. oxydans/GCPE based MFC showed maximum power density as 0.26 μW cm-2 (at 46.8 mV), maximum current density as 15.079 μA cm-2 and OCP value of 176 mV.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Glassy carbon paste electrodes, Gluconobacter oxydans, Microbial biofuel cell, Osmium redox polymer
in
Electroanalysis
publisher
John Wiley & Sons
external identifiers
  • scopus:85007550446
  • wos:000405309000020
ISSN
1040-0397
DOI
10.1002/elan.201600727
language
English
LU publication?
yes
id
7f2a892b-1fdf-4011-87a3-6711c233a6e7
date added to LUP
2017-03-21 16:09:39
date last changed
2018-01-07 11:56:40
@article{7f2a892b-1fdf-4011-87a3-6711c233a6e7,
  abstract     = {<p>Gluconobacter oxydans (G. oxydans) cells together with an osmium redox polymer (ORP) [Osmium (2,2'-bipyridine)2(poly-vinylimidazole)10Cl]Cl were combined with a glassy carbon paste electrode (GCPE) to form a bioanode for a microbial fuel cell (MFC) based on G. oxydans. Although there are G.oxydans/ ORP combined bioanode in the literature, as far as it is known, this system is the first one where G.oxydans/ORP bioanode is combined with a cathode and a MFC is formed. After the optimization of experimental parameters, analytical characteristics of ORP/G. oxydans/GCPE bioanode were investigated. ORP/G. oxydans/GCPE showed two linear ranges for ethanol substrate as 1.0-30mM (R<sup>2</sup>=0.902) and 30-500mM (R<sup>2</sup>=0.997) and analytical range as 1.0-1000mM. Limit of detection (3.0s/m) and limit of quantification (10s/m) values were calculated as 1.29mM and 4.30mM respectively where the RSD value was 1.16% for n=5. Combining the developed bioanode in the presence of 5.0mM K<sub>3</sub>Fe(CN)<sub>6</sub> mediator with a Pt wire cathode a double compartment MFC was obtained via a salt bridge. G. oxydans/GCPE bioanode based MFC had maximum power density of 0.133 μW cm<sup>-2</sup> (at 33.5 mV), maximum current density as 8.73 μA cm<sup>-2</sup> and OCP value of 156 mV. On the other hand, ORP/G. oxydans/GCPE based MFC showed maximum power density as 0.26 μW cm<sup>-2</sup> (at 46.8 mV), maximum current density as 15.079 μA cm<sup>-2</sup> and OCP value of 176 mV.</p>},
  author       = {Aslan, Sema and Conghaile, Peter O. and Leech, Dónal and Gorton, Lo and Timur, Suna and Anik, Ulku},
  issn         = {1040-0397},
  keyword      = {Glassy carbon paste electrodes,Gluconobacter oxydans,Microbial biofuel cell,Osmium redox polymer},
  language     = {eng},
  publisher    = {John Wiley & Sons},
  series       = {Electroanalysis},
  title        = {Development of an Osmium Redox Polymer Mediated Bioanode and Examination of Its Performance in Gluconobacter oxydans Based Microbial Fuel Cell},
  url          = {http://dx.doi.org/10.1002/elan.201600727},
  year         = {2017},
}