Increasing power generation for scaling up single-chamber air cathode microbial fuel cells

Handle URI:
http://hdl.handle.net/10754/598612
Title:
Increasing power generation for scaling up single-chamber air cathode microbial fuel cells
Authors:
Cheng, Shaoan; Logan, Bruce E.
Abstract:
Scaling up microbial fuel cells (MFCs) requires a better understanding the importance of the different factors such as electrode surface area and reactor geometry relative to solution conditions such as conductivity and substrate concentration. It is shown here that the substrate concentration has significant effect on anode but not cathode performance, while the solution conductivity has a significant effect on the cathode but not the anode. The cathode surface area is always important for increasing power. Doubling the cathode size can increase power by 62% with domestic wastewater, but doubling the anode size increases power by 12%. Volumetric power density was shown to be a linear function of cathode specific surface area (ratio of cathode surface area to reactor volume), but the impact of cathode size on power generation depended on the substrate strength (COD) and conductivity. These results demonstrate the cathode specific surface area is the most critical factor for scaling-up MFCs to obtain high power densities. © 2010 Elsevier Ltd.
Citation:
Cheng S, Logan BE (2011) Increasing power generation for scaling up single-chamber air cathode microbial fuel cells. Bioresource Technology 102: 4468–4473. Available: http://dx.doi.org/10.1016/j.biortech.2010.12.104.
Publisher:
Elsevier BV
Journal:
Bioresource Technology
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
Mar-2011
DOI:
10.1016/j.biortech.2010.12.104
PubMed ID:
21273062
Type:
Article
ISSN:
0960-8524
Sponsors:
This research was supported by funding through the National Science Foundation grants BES-0401885 and CBET-0730359, by King Abdullah University of Science and Technology (KAUST) (Award KUS-I1-003-13), and by Key Research Project of Science and Technology Department of Zhejiang Province of China (2010C31014).
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorCheng, Shaoanen
dc.contributor.authorLogan, Bruce E.en
dc.date.accessioned2016-02-25T13:33:07Zen
dc.date.available2016-02-25T13:33:07Zen
dc.date.issued2011-03en
dc.identifier.citationCheng S, Logan BE (2011) Increasing power generation for scaling up single-chamber air cathode microbial fuel cells. Bioresource Technology 102: 4468–4473. Available: http://dx.doi.org/10.1016/j.biortech.2010.12.104.en
dc.identifier.issn0960-8524en
dc.identifier.pmid21273062en
dc.identifier.doi10.1016/j.biortech.2010.12.104en
dc.identifier.urihttp://hdl.handle.net/10754/598612en
dc.description.abstractScaling up microbial fuel cells (MFCs) requires a better understanding the importance of the different factors such as electrode surface area and reactor geometry relative to solution conditions such as conductivity and substrate concentration. It is shown here that the substrate concentration has significant effect on anode but not cathode performance, while the solution conductivity has a significant effect on the cathode but not the anode. The cathode surface area is always important for increasing power. Doubling the cathode size can increase power by 62% with domestic wastewater, but doubling the anode size increases power by 12%. Volumetric power density was shown to be a linear function of cathode specific surface area (ratio of cathode surface area to reactor volume), but the impact of cathode size on power generation depended on the substrate strength (COD) and conductivity. These results demonstrate the cathode specific surface area is the most critical factor for scaling-up MFCs to obtain high power densities. © 2010 Elsevier Ltd.en
dc.description.sponsorshipThis research was supported by funding through the National Science Foundation grants BES-0401885 and CBET-0730359, by King Abdullah University of Science and Technology (KAUST) (Award KUS-I1-003-13), and by Key Research Project of Science and Technology Department of Zhejiang Province of China (2010C31014).en
dc.publisherElsevier BVen
dc.subjectCathode specific surface areaen
dc.subjectMicrobial fuel cellen
dc.subjectScaling upen
dc.subjectSolution conductivityen
dc.subjectSubstrate concentrationen
dc.titleIncreasing power generation for scaling up single-chamber air cathode microbial fuel cellsen
dc.typeArticleen
dc.identifier.journalBioresource Technologyen
dc.contributor.institutionZhejiang University, Hangzhou, Chinaen
dc.contributor.institutionPennsylvania State University, State College, United Statesen
kaust.grant.numberKUS-I1-003-13en
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