Lily D. Chambers
Comparing the short and long term stability of biodegradable, ceramic and cation exchange membranes in microbial fuel cells
Chambers, Lily D.; Winfield, Jonathan; Chambers, Lily; Rossiter, Jonathan; Ieropoulos, Ioannis
Authors
Jonathan Winfield Jonathan.Winfield@uwe.ac.uk
School Director (Learning & Teaching)
Lily Chambers
Jonathan Rossiter
Yannis Ieropoulos Ioannis2.Ieropoulos@uwe.ac.uk
Professor in Bioenergy & Director of B-B
Abstract
The long and short-term stability of two porous dependent ion exchange materials; starch-based compostable bags (BioBag) and ceramic, were compared to commercially available cation exchange membrane (CEM) in microbial fuel cells. Using bi-directional polarisation methods, CEM exhibited power overshoot during the forward sweep followed by significant power decline over the reverse sweep (38%). The porous membranes displayed no power overshoot with comparably smaller drops in power during the reverse sweep (ceramic 8%, BioBag 5.5%). The total internal resistance at maximum power increased by 64% for CEM compared to 4% (ceramic) and 6% (BioBag). Under fixed external resistive loads, CEM exhibited steeper pH reductions than the porous membranes. Despite its limited lifetime, the BioBag proved an efficient material for a stable microbial environment until failing after 8 months, due to natural degradation. These findings highlight porous separators as ideal candidates for advancing MFC technology in terms of cost and operation stability. © 2013 Elsevier Ltd.
Citation
Chambers, L. D., Winfield, J., Chambers, L., Rossiter, J., & Ieropoulos, I. (2013). Comparing the short and long term stability of biodegradable, ceramic and cation exchange membranes in microbial fuel cells. Bioresource Technology, 148, 480-486. https://doi.org/10.1016/j.biortech.2013.08.163
Journal Article Type | Article |
---|---|
Publication Date | Jan 1, 2013 |
Journal | Bioresource Technology |
Print ISSN | 0960-8524 |
Electronic ISSN | 1873-2976 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 148 |
Pages | 480-486 |
DOI | https://doi.org/10.1016/j.biortech.2013.08.163 |
Keywords | microbial fuel cell, power overshoot, proton exchange membrane, biodegradation, ceramic |
Public URL | https://uwe-repository.worktribe.com/output/926531 |
Publisher URL | http://dx.doi.org/10.1016/j.biortech.2013.08.163 |
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