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

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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; Timur, Suna; Anik, Ulku.

I: Electroanalysis, Vol. 29, Nr. 6, 06.2017, s. 1651-1657.

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Aslan, Sema ; Conghaile, Peter O. ; Leech, Dónal ; Gorton, Lo ; Timur, Suna ; Anik, Ulku. / Development of an Osmium Redox Polymer Mediated Bioanode and Examination of Its Performance in Gluconobacter oxydans Based Microbial Fuel Cell. I: Electroanalysis. 2017 ; Vol. 29, Nr. 6. s. 1651-1657.

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TY - JOUR

T1 - Development of an Osmium Redox Polymer Mediated Bioanode and Examination of Its Performance in Gluconobacter oxydans Based Microbial Fuel Cell

AU - Aslan, Sema

AU - Conghaile, Peter O.

AU - Leech, Dónal

AU - Gorton, Lo

AU - Timur, Suna

AU - Anik, Ulku

PY - 2017/6

Y1 - 2017/6

N2 - 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.

AB - 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.

KW - Glassy carbon paste electrodes

KW - Gluconobacter oxydans

KW - Microbial biofuel cell

KW - Osmium redox polymer

UR - http://www.scopus.com/inward/record.url?scp=85007550446&partnerID=8YFLogxK

U2 - 10.1002/elan.201600727

DO - 10.1002/elan.201600727

M3 - Article

VL - 29

SP - 1651

EP - 1657

JO - Electroanalysis

JF - Electroanalysis

SN - 1040-0397

IS - 6

ER -