Power generation using carbon mesh cathodes with different diffusion layers in microbial fuel cells

Handle URI:
http://hdl.handle.net/10754/599350
Title:
Power generation using carbon mesh cathodes with different diffusion layers in microbial fuel cells
Authors:
Luo, Yong; Zhang, Fang; Wei, Bin; Liu, Guangli; Zhang, Renduo; Logan, Bruce E.
Abstract:
An inexpensive carbon material, carbon mesh, was examined to replace the more expensive carbon cloth usually used to make cathodes in air-cathode microbial fuel cells (MFCs). Three different diffusion layers were tested using carbon mesh: poly(dimethylsiloxane) (PDMS), polytetrafluoroethylene (PTFE), and Goretex cloth. Carbon mesh with a mixture of PDMS and carbon black as a diffusion layer produced a maximum power density of 1355 ± 62 mW m -2 (normalized to the projected cathode area), which was similar to that obtained with a carbon cloth cathode (1390 ± 72 mW m-2). Carbon mesh with a PTFE diffusion layer produced only a slightly lower (6.6%) maximum power density (1303 ± 48 mW m-2). The Coulombic efficiencies were a function of current density, with the highest value for the carbon mesh and PDMS (79%) larger than that for carbon cloth (63%). The cost of the carbon mesh cathode with PDMS/Carbon or PTFE (excluding catalyst and binder costs) is only 2.5% of the cost of the carbon cloth cathode. These results show that low cost carbon materials such as carbon mesh can be used as the cathode in an MFC without reducing the performance compared to more expensive carbon cloth. © 2011 Elsevier B.V.
Citation:
Luo Y, Zhang F, Wei B, Liu G, Zhang R, et al. (2011) Power generation using carbon mesh cathodes with different diffusion layers in microbial fuel cells. Journal of Power Sources 196: 9317–9321. Available: http://dx.doi.org/10.1016/j.jpowsour.2011.07.077.
Publisher:
Elsevier BV
Journal:
Journal of Power Sources
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
Nov-2011
DOI:
10.1016/j.jpowsour.2011.07.077
Type:
Article
ISSN:
0378-7753
Sponsors:
We gratefully acknowledge help with materials and suggestions by David Jones, Dr. Yiying Hong, Dr. John Pisciotta, Dan Sun and Dr. Justin Tokash. This work was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST), and a scholarship from the China Scholarship Council (CSC).
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorLuo, Yongen
dc.contributor.authorZhang, Fangen
dc.contributor.authorWei, Binen
dc.contributor.authorLiu, Guanglien
dc.contributor.authorZhang, Renduoen
dc.contributor.authorLogan, Bruce E.en
dc.date.accessioned2016-02-28T05:49:47Zen
dc.date.available2016-02-28T05:49:47Zen
dc.date.issued2011-11en
dc.identifier.citationLuo Y, Zhang F, Wei B, Liu G, Zhang R, et al. (2011) Power generation using carbon mesh cathodes with different diffusion layers in microbial fuel cells. Journal of Power Sources 196: 9317–9321. Available: http://dx.doi.org/10.1016/j.jpowsour.2011.07.077.en
dc.identifier.issn0378-7753en
dc.identifier.doi10.1016/j.jpowsour.2011.07.077en
dc.identifier.urihttp://hdl.handle.net/10754/599350en
dc.description.abstractAn inexpensive carbon material, carbon mesh, was examined to replace the more expensive carbon cloth usually used to make cathodes in air-cathode microbial fuel cells (MFCs). Three different diffusion layers were tested using carbon mesh: poly(dimethylsiloxane) (PDMS), polytetrafluoroethylene (PTFE), and Goretex cloth. Carbon mesh with a mixture of PDMS and carbon black as a diffusion layer produced a maximum power density of 1355 ± 62 mW m -2 (normalized to the projected cathode area), which was similar to that obtained with a carbon cloth cathode (1390 ± 72 mW m-2). Carbon mesh with a PTFE diffusion layer produced only a slightly lower (6.6%) maximum power density (1303 ± 48 mW m-2). The Coulombic efficiencies were a function of current density, with the highest value for the carbon mesh and PDMS (79%) larger than that for carbon cloth (63%). The cost of the carbon mesh cathode with PDMS/Carbon or PTFE (excluding catalyst and binder costs) is only 2.5% of the cost of the carbon cloth cathode. These results show that low cost carbon materials such as carbon mesh can be used as the cathode in an MFC without reducing the performance compared to more expensive carbon cloth. © 2011 Elsevier B.V.en
dc.description.sponsorshipWe gratefully acknowledge help with materials and suggestions by David Jones, Dr. Yiying Hong, Dr. John Pisciotta, Dan Sun and Dr. Justin Tokash. This work was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST), and a scholarship from the China Scholarship Council (CSC).en
dc.publisherElsevier BVen
dc.subjectCarbon meshen
dc.subjectLow costen
dc.subjectMicrobial fuel cellen
dc.subjectPoly(dimethylsiloxane) (PDMS)en
dc.subjectPolytetrafluoroethylene (PTFE)en
dc.titlePower generation using carbon mesh cathodes with different diffusion layers in microbial fuel cellsen
dc.typeArticleen
dc.identifier.journalJournal of Power Sourcesen
dc.contributor.institutionSun Yat-Sen University, Guangzhou, Chinaen
dc.contributor.institutionPennsylvania State University, State College, United Statesen
kaust.grant.numberKUS-I1-003-13en
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