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Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design

Microbial fuel cells (MFCs) with paper separators and liquid containing elements were investigated in supercapacitive mode. MFCs (15 mL) in a supercapacitive configuration, consisted of plain wrapped carbon veil anode (negative) and conductive latex cathode (positive). The internal supercapacitor is...

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Detalles Bibliográficos
Autores principales: Santoro, Carlo, Winfield, Jonathan, Theodosiou, Pavlina, Ieropoulos, Ioannis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier Ltd 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6894309/
https://www.ncbi.nlm.nih.gov/pubmed/31853518
http://dx.doi.org/10.1016/j.biteb.2019.100297
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author Santoro, Carlo
Winfield, Jonathan
Theodosiou, Pavlina
Ieropoulos, Ioannis
author_facet Santoro, Carlo
Winfield, Jonathan
Theodosiou, Pavlina
Ieropoulos, Ioannis
author_sort Santoro, Carlo
collection PubMed
description Microbial fuel cells (MFCs) with paper separators and liquid containing elements were investigated in supercapacitive mode. MFCs (15 mL) in a supercapacitive configuration, consisted of plain wrapped carbon veil anode (negative) and conductive latex cathode (positive). The internal supercapacitor is discharged galvanostatically and is self-recharged as red-ox reactions occur on both electrodes. MFCs were discharged at different current pulses varying from 1 mA to 7 mA. The MFCs had an equivalent series resistance of 41.2 ± 3.5 Ω caused mainly by the cathode. A maximum power of 1.380 ± 0.083 mW (0.092 ± 0.006 mW mL(−1)) was measured. Durability tests were conducted over 24 h collecting 1000 discharge cycles (0.5 s) and self-recharges (85 s) at a current of 1 mA. Over time the anode potential dropped causing a decline in performance perhaps due to evaporation of liquid from the pyramidal structure. Resistance and apparent capacitance measured during the durability test remained approximately constant during the cycles.
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spelling pubmed-68943092019-12-16 Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design Santoro, Carlo Winfield, Jonathan Theodosiou, Pavlina Ieropoulos, Ioannis Bioresour Technol Rep Article Microbial fuel cells (MFCs) with paper separators and liquid containing elements were investigated in supercapacitive mode. MFCs (15 mL) in a supercapacitive configuration, consisted of plain wrapped carbon veil anode (negative) and conductive latex cathode (positive). The internal supercapacitor is discharged galvanostatically and is self-recharged as red-ox reactions occur on both electrodes. MFCs were discharged at different current pulses varying from 1 mA to 7 mA. The MFCs had an equivalent series resistance of 41.2 ± 3.5 Ω caused mainly by the cathode. A maximum power of 1.380 ± 0.083 mW (0.092 ± 0.006 mW mL(−1)) was measured. Durability tests were conducted over 24 h collecting 1000 discharge cycles (0.5 s) and self-recharges (85 s) at a current of 1 mA. Over time the anode potential dropped causing a decline in performance perhaps due to evaporation of liquid from the pyramidal structure. Resistance and apparent capacitance measured during the durability test remained approximately constant during the cycles. Elsevier Ltd 2019-09 /pmc/articles/PMC6894309/ /pubmed/31853518 http://dx.doi.org/10.1016/j.biteb.2019.100297 Text en © 2019 The Authors http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Santoro, Carlo
Winfield, Jonathan
Theodosiou, Pavlina
Ieropoulos, Ioannis
Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design
title Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design
title_full Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design
title_fullStr Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design
title_full_unstemmed Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design
title_short Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design
title_sort supercapacitive paper based microbial fuel cell: high current/power production within a low cost design
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6894309/
https://www.ncbi.nlm.nih.gov/pubmed/31853518
http://dx.doi.org/10.1016/j.biteb.2019.100297
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