Carlo Santoro
High power generation by a membraneless single chamber microbial fuel cell (SCMFC) using enzymatic bilirubin oxidase (BOx) air-breathing cathode
Santoro, Carlo; Babanova, Sofia; Atanassov, Plamen; Li, Baikun; Ieropoulos, Ioannis; Cristiani, Pierangela
Authors
Sofia Babanova
Plamen Atanassov
Baikun Li
Yannis Ieropoulos Ioannis2.Ieropoulos@uwe.ac.uk
Professor in Bioenergy & Director of B-B
Pierangela Cristiani
Abstract
In this work, for the first time, we showed the successful utilization of enzymatic-based (bilirubin oxidase, BOx) air-breathing gas-diffusion (ABGD-BOx) cathode in membraneless single chamber microbial fuel cells (SCMFCs). At pH range of 7.2-7.5, the cathode open circuit potentials (OCPs) achieved were in the range of 490-535 mV (vs. sat. Ag/AgCl) with the anodic OCP being between -495 mV and -530 mV (vs. sat. Ag/AgCl). The highest overall open circuit voltage (OCV) of the SCMFCs (1.05 V) fed with phosphate buffer solution (PBS) and sodium acetate (NaOAc) was achieved after 12-24 hour of operation. Polarization curves of the ABGD-BOx cathode showed lower overpotential with an advantage of up to 250 mV compared to the traditional platinum Pt-based cathode, and possessed a great potential to replace the noble metal-based cathodes in MFCs. High power generation of 2 W m-2 (200 μW cm-2, referred to cathode geometric surface area) was achieved in SCMFCs with the ABGD-BOx cathode, which was the highest power generation reported for SCMFCs with a volume greater than 100 mL. © 2013, The Electrochemical Society, Inc. All rights reserved.
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 1, 2013 |
Online Publication Date | Aug 16, 2013 |
Publication Date | Aug 16, 2013 |
Deposit Date | Nov 20, 2020 |
Journal | Journal of the Electrochemical Society |
Print ISSN | 0013-4651 |
Electronic ISSN | 1945-7111 |
Publisher | Electrochemical Society |
Peer Reviewed | Peer Reviewed |
Volume | 160 |
Issue | 10 |
Pages | 720-726 |
DOI | https://doi.org/10.1149/2.058310jes |
Keywords | membraneless single chamber microbial fuel cells, enzymatic-based air-breathing gas-diffusion cathode |
Public URL | https://uwe-repository.worktribe.com/output/6804531 |
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