Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design
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 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.
Galvanostatic discharges, Low-cost system, Microbial fuel cell, Supercapacitive mode, Urine
Santoro, Carlo
03549f6d-d57f-4d79-8bae-2d9271aa7371
Winfield, Jonathan
e81f4fad-1433-4c6a-9723-24a14f172896
Theodosiou, Pavlina
402c5cd6-b491-45d8-abfc-68221f1ef9f5
Ieropoulos, Ioannis
6c580270-3e08-430a-9f49-7fbe869daf13
September 2019
Santoro, Carlo
03549f6d-d57f-4d79-8bae-2d9271aa7371
Winfield, Jonathan
e81f4fad-1433-4c6a-9723-24a14f172896
Theodosiou, Pavlina
402c5cd6-b491-45d8-abfc-68221f1ef9f5
Ieropoulos, Ioannis
6c580270-3e08-430a-9f49-7fbe869daf13
Santoro, Carlo, Winfield, Jonathan, Theodosiou, Pavlina and Ieropoulos, Ioannis
(2019)
Supercapacitive paper based microbial fuel cell: High current/power production within a low cost design.
Bioresource Technology Reports, 7, [100297].
(doi:10.1016/j.biteb.2019.100297).
Abstract
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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Published date: September 2019
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© 2019
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Copyright 2021 Elsevier B.V., All rights reserved.
Keywords:
Galvanostatic discharges, Low-cost system, Microbial fuel cell, Supercapacitive mode, Urine
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Local EPrints ID: 456362
URI: http://eprints.soton.ac.uk/id/eprint/456362
PURE UUID: dfaf2af5-bbe3-48ed-a591-e276abe0168c
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Date deposited: 27 Apr 2022 09:37
Last modified: 17 Mar 2024 04:10
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Author:
Carlo Santoro
Author:
Jonathan Winfield
Author:
Pavlina Theodosiou
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