Use of Pyrolyzed Iron Ethylenediaminetetraacetic Acid Modified Activated Carbon as Air–Cathode Catalyst in Microbial Fuel Cells

Handle URI:
http://hdl.handle.net/10754/600145
Title:
Use of Pyrolyzed Iron Ethylenediaminetetraacetic Acid Modified Activated Carbon as Air–Cathode Catalyst in Microbial Fuel Cells
Authors:
Xia, Xue; Zhang, Fang; Zhang, Xiaoyuan; Liang, Peng; Huang, Xia; Logan, Bruce E.
Abstract:
Activated carbon (AC) is a cost-effective catalyst for the oxygen reduction reaction (ORR) in air-cathode microbial fuel cells (MFCs). To enhance the catalytic activity of AC cathodes, AC powders were pyrolyzed with iron ethylenediaminetetraacetic acid (FeEDTA) at a weight ratio of FeEDTA:AC = 0.2:1. MFCs with FeEDTA modified AC cathodes and a stainless steel mesh current collector produced a maximum power density of 1580 ± 80 mW/m2, which was 10% higher than that of plain AC cathodes (1440 ± 60 mW/m 2) and comparable to Pt cathodes (1550 ± 10 mW/m2). Further increases in the ratio of FeEDTA:AC resulted in a decrease in performance. The durability of AC-based cathodes was much better than Pt-catalyzed cathodes. After 4.5 months of operation, the maximum power density of Pt cathode MFCs was 50% lower than MFCs with the AC cathodes. Pyridinic nitrogen, quaternary nitrogen and iron species likely contributed to the increased activity of FeEDTA modified AC. These results show that pyrolyzing AC with FeEDTA is a cost-effective and durable way to increase the catalytic activity of AC. © 2013 American Chemical Society.
Citation:
Xia X, Zhang F, Zhang X, Liang P, Huang X, et al. (2013) Use of Pyrolyzed Iron Ethylenediaminetetraacetic Acid Modified Activated Carbon as Air–Cathode Catalyst in Microbial Fuel Cells. ACS Applied Materials & Interfaces 5: 7862–7866. Available: http://dx.doi.org/10.1021/am4018225.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
28-Aug-2013
DOI:
10.1021/am4018225
PubMed ID:
23902951
Type:
Article
ISSN:
1944-8244; 1944-8252
Sponsors:
The authors thank Dr. Jennifer Gray and Dr. Vince Bojan for their assistance with XPS measurement and analysis. This research was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST), the International Program of MOST (2013DFG92240), and the Program for Changjiang Scholars and Innovative Research Team in University.
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Full metadata record

DC FieldValue Language
dc.contributor.authorXia, Xueen
dc.contributor.authorZhang, Fangen
dc.contributor.authorZhang, Xiaoyuanen
dc.contributor.authorLiang, Pengen
dc.contributor.authorHuang, Xiaen
dc.contributor.authorLogan, Bruce E.en
dc.date.accessioned2016-02-28T06:43:39Zen
dc.date.available2016-02-28T06:43:39Zen
dc.date.issued2013-08-28en
dc.identifier.citationXia X, Zhang F, Zhang X, Liang P, Huang X, et al. (2013) Use of Pyrolyzed Iron Ethylenediaminetetraacetic Acid Modified Activated Carbon as Air–Cathode Catalyst in Microbial Fuel Cells. ACS Applied Materials & Interfaces 5: 7862–7866. Available: http://dx.doi.org/10.1021/am4018225.en
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.pmid23902951en
dc.identifier.doi10.1021/am4018225en
dc.identifier.urihttp://hdl.handle.net/10754/600145en
dc.description.abstractActivated carbon (AC) is a cost-effective catalyst for the oxygen reduction reaction (ORR) in air-cathode microbial fuel cells (MFCs). To enhance the catalytic activity of AC cathodes, AC powders were pyrolyzed with iron ethylenediaminetetraacetic acid (FeEDTA) at a weight ratio of FeEDTA:AC = 0.2:1. MFCs with FeEDTA modified AC cathodes and a stainless steel mesh current collector produced a maximum power density of 1580 ± 80 mW/m2, which was 10% higher than that of plain AC cathodes (1440 ± 60 mW/m 2) and comparable to Pt cathodes (1550 ± 10 mW/m2). Further increases in the ratio of FeEDTA:AC resulted in a decrease in performance. The durability of AC-based cathodes was much better than Pt-catalyzed cathodes. After 4.5 months of operation, the maximum power density of Pt cathode MFCs was 50% lower than MFCs with the AC cathodes. Pyridinic nitrogen, quaternary nitrogen and iron species likely contributed to the increased activity of FeEDTA modified AC. These results show that pyrolyzing AC with FeEDTA is a cost-effective and durable way to increase the catalytic activity of AC. © 2013 American Chemical Society.en
dc.description.sponsorshipThe authors thank Dr. Jennifer Gray and Dr. Vince Bojan for their assistance with XPS measurement and analysis. This research was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST), the International Program of MOST (2013DFG92240), and the Program for Changjiang Scholars and Innovative Research Team in University.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectactivated carbonen
dc.subjectcatalysten
dc.subjectiron ethylenediaminetetraacetic aciden
dc.subjectmicrobial fuel cellen
dc.subjectoxygen reduction reactionen
dc.titleUse of Pyrolyzed Iron Ethylenediaminetetraacetic Acid Modified Activated Carbon as Air–Cathode Catalyst in Microbial Fuel Cellsen
dc.typeArticleen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.contributor.institutionTsinghua University, Beijing, Chinaen
dc.contributor.institutionPennsylvania State University, State College, United Statesen
kaust.grant.numberKUS-I1-003-13en
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