The impact of new cathode materials relative to baseline performance of microbial fuel cells all with the same architecture and solution chemistry

Handle URI:
http://hdl.handle.net/10754/623300
Title:
The impact of new cathode materials relative to baseline performance of microbial fuel cells all with the same architecture and solution chemistry
Authors:
Yang, Wulin; Kim, Kyoung-Yeol; Saikaly, Pascal ( 0000-0001-7678-3986 ) ; Logan, Bruce E
Abstract:
Differences in microbial fuel cell (MFC) architectures, materials, and solution chemistries, have previously hindered direct comparisons of improvements in power production due to new cathode materials. However, one common reactor design has now been used in many different laboratories around the world under similar operating conditions based on using: a graphite fiber brush anode, a platinum cathode catalyst, a single-chamber cube-shaped (4-cm) MFC with a 3-cm diameter anolyte chamber, 50 mM phosphate buffer, and an acetate fuel. Analysis of several publications over 10 years from a single laboratory showed that even under such identical operational conditions, maximum power densities varied by 15%, with an average of 1.36 ± 0.20 W m–2 (n=24), normalized to cathode projected area (34 W m–3 liquid volume). In other laboratories, maximum power was significantly less, with an average of 1.03 ± 0.46 W m–2 (n=11), despite identical conditions. One likely reason for the differences in power is cathode age. Power production with Pt catalyst cathodes significantly declined after one month of operation or more to 0.87 ± 0.31 W m–2 (n=18) based on studies where cathode aging was examined, while in many studies the age of the cathode was not reported. Using these studies as a performance baseline, we review the claims of improvements in power generation due to new anode or cathode materials, or changes in solution conductivities and substrates.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)
Citation:
Yang W, Kim K-Y, Saikaly PE, Logan BE (2017) The impact of new cathode materials relative to baseline performance of microbial fuel cells all with the same architecture and solution chemistry. Energy Environ Sci. Available: http://dx.doi.org/10.1039/c7ee00910k.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Energy Environ. Sci.
KAUST Grant Number:
OSR-2016-CPF-2907-03
Issue Date:
21-Apr-2017
DOI:
10.1039/c7ee00910k
Type:
Article
ISSN:
1754-5692; 1754-5706
Sponsors:
This work was supported by Strategic Environmental Research and Development Program (SERDP), and Award OSR-2016-CPF-2907-03 from the King Abdullah University of Science and Technology (KAUST).
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2017/EE/C7EE00910K#!divAbstract
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorYang, Wulinen
dc.contributor.authorKim, Kyoung-Yeolen
dc.contributor.authorSaikaly, Pascalen
dc.contributor.authorLogan, Bruce Een
dc.date.accessioned2017-04-30T10:17:02Z-
dc.date.available2017-04-30T10:17:02Z-
dc.date.issued2017-04-21en
dc.identifier.citationYang W, Kim K-Y, Saikaly PE, Logan BE (2017) The impact of new cathode materials relative to baseline performance of microbial fuel cells all with the same architecture and solution chemistry. Energy Environ Sci. Available: http://dx.doi.org/10.1039/c7ee00910k.en
dc.identifier.issn1754-5692en
dc.identifier.issn1754-5706en
dc.identifier.doi10.1039/c7ee00910ken
dc.identifier.urihttp://hdl.handle.net/10754/623300-
dc.description.abstractDifferences in microbial fuel cell (MFC) architectures, materials, and solution chemistries, have previously hindered direct comparisons of improvements in power production due to new cathode materials. However, one common reactor design has now been used in many different laboratories around the world under similar operating conditions based on using: a graphite fiber brush anode, a platinum cathode catalyst, a single-chamber cube-shaped (4-cm) MFC with a 3-cm diameter anolyte chamber, 50 mM phosphate buffer, and an acetate fuel. Analysis of several publications over 10 years from a single laboratory showed that even under such identical operational conditions, maximum power densities varied by 15%, with an average of 1.36 ± 0.20 W m–2 (n=24), normalized to cathode projected area (34 W m–3 liquid volume). In other laboratories, maximum power was significantly less, with an average of 1.03 ± 0.46 W m–2 (n=11), despite identical conditions. One likely reason for the differences in power is cathode age. Power production with Pt catalyst cathodes significantly declined after one month of operation or more to 0.87 ± 0.31 W m–2 (n=18) based on studies where cathode aging was examined, while in many studies the age of the cathode was not reported. Using these studies as a performance baseline, we review the claims of improvements in power generation due to new anode or cathode materials, or changes in solution conductivities and substrates.en
dc.description.sponsorshipThis work was supported by Strategic Environmental Research and Development Program (SERDP), and Award OSR-2016-CPF-2907-03 from the King Abdullah University of Science and Technology (KAUST).en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/EE/C7EE00910K#!divAbstracten
dc.rightsArchived with thanks to Energy Environ. Sci.en
dc.titleThe impact of new cathode materials relative to baseline performance of microbial fuel cells all with the same architecture and solution chemistryen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalEnergy Environ. Sci.en
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Civil and Environmental Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United Statesen
kaust.authorSaikaly, Pascalen
kaust.grant.numberOSR-2016-CPF-2907-03en
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