High-Performance Carbon Aerogel Air Cathodes for Microbial Fuel Cells

Handle URI:
http://hdl.handle.net/10754/623553
Title:
High-Performance Carbon Aerogel Air Cathodes for Microbial Fuel Cells
Authors:
Zhang, Xiaoyuan ( 0000-0003-3196-3443 ) ; He, Weihua; Zhang, Rufan; Wang, Qiuying; Liang, Peng; Huang, Xia; Logan, Bruce E.; Fellinger, Tim-Patrick
Abstract:
Microbial fuel cells (MFCs) can generate electricity from the oxidation of organic substrates using anodic exoelectrogenic bacteria and have great potential for harvesting electric energy from wastewater. Improving oxygen reduction reaction (ORR) performance at a neutral pH is needed for efficient energy production. Here we show a nitrogen doped (≈4 wt%) ionothermal carbon aerogel (NDC) with a high surface area, large pore volume, and hierarchical porosity, with good electrocatalytic properties for ORR in MFCs. The MFCs using NDC air cathodes achieved a high maximum power density of 2300 mW m−2, which was 1.7 times higher than the most commonly used Pt/C air cathodes and also higher than most state-of-the-art ORR catalyst air cathodes. Rotating disk electrode measurements verified the superior electrocatalytic activity of NDC with an efficient four-electron transfer pathway (n=3.9). These findings highlight NDC as a better-performing and cost-efficient catalyst compared with Pt/C, making it highly viable for MFC applications.
Citation:
Zhang X, He W, Zhang R, Wang Q, Liang P, et al. (2016) High-Performance Carbon Aerogel Air Cathodes for Microbial Fuel Cells. ChemSusChem 9: 2788–2795. Available: http://dx.doi.org/10.1002/cssc.201600590.
Publisher:
Wiley-Blackwell
Journal:
ChemSusChem
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
11-Aug-2016
DOI:
10.1002/cssc.201600590
Type:
Article
ISSN:
1864-5631
Sponsors:
This research was supported by National Natural Science Foundation of China (Grant No. 51408336), the International Program of MOST (Grant No. 2013DFG92240), National Key Research and Development Program (Grant No. 2016YFB0600502), special fund of State Key Joint Laboratory of Environment Simulation and Pollution Control (Grant No. 15Y02ESPCT), the Strategic Environmental Research and Development Program (SERDP), and Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST). Tina Hantke and Jessica Brandt as well as the technical staff of the MPI are acknowledged for electrochemical measurements/synthesis and standard characterization.
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Xiaoyuanen
dc.contributor.authorHe, Weihuaen
dc.contributor.authorZhang, Rufanen
dc.contributor.authorWang, Qiuyingen
dc.contributor.authorLiang, Pengen
dc.contributor.authorHuang, Xiaen
dc.contributor.authorLogan, Bruce E.en
dc.contributor.authorFellinger, Tim-Patricken
dc.date.accessioned2017-05-15T10:35:08Z-
dc.date.available2017-05-15T10:35:08Z-
dc.date.issued2016-08-11en
dc.identifier.citationZhang X, He W, Zhang R, Wang Q, Liang P, et al. (2016) High-Performance Carbon Aerogel Air Cathodes for Microbial Fuel Cells. ChemSusChem 9: 2788–2795. Available: http://dx.doi.org/10.1002/cssc.201600590.en
dc.identifier.issn1864-5631en
dc.identifier.doi10.1002/cssc.201600590en
dc.identifier.urihttp://hdl.handle.net/10754/623553-
dc.description.abstractMicrobial fuel cells (MFCs) can generate electricity from the oxidation of organic substrates using anodic exoelectrogenic bacteria and have great potential for harvesting electric energy from wastewater. Improving oxygen reduction reaction (ORR) performance at a neutral pH is needed for efficient energy production. Here we show a nitrogen doped (≈4 wt%) ionothermal carbon aerogel (NDC) with a high surface area, large pore volume, and hierarchical porosity, with good electrocatalytic properties for ORR in MFCs. The MFCs using NDC air cathodes achieved a high maximum power density of 2300 mW m−2, which was 1.7 times higher than the most commonly used Pt/C air cathodes and also higher than most state-of-the-art ORR catalyst air cathodes. Rotating disk electrode measurements verified the superior electrocatalytic activity of NDC with an efficient four-electron transfer pathway (n=3.9). These findings highlight NDC as a better-performing and cost-efficient catalyst compared with Pt/C, making it highly viable for MFC applications.en
dc.description.sponsorshipThis research was supported by National Natural Science Foundation of China (Grant No. 51408336), the International Program of MOST (Grant No. 2013DFG92240), National Key Research and Development Program (Grant No. 2016YFB0600502), special fund of State Key Joint Laboratory of Environment Simulation and Pollution Control (Grant No. 15Y02ESPCT), the Strategic Environmental Research and Development Program (SERDP), and Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST). Tina Hantke and Jessica Brandt as well as the technical staff of the MPI are acknowledged for electrochemical measurements/synthesis and standard characterization.en
dc.publisherWiley-Blackwellen
dc.subjectair cathodeen
dc.subjectcarbonen
dc.subjectcatalysisen
dc.subjectmicrobial fuel cellsen
dc.subjectrenewable resourcesen
dc.titleHigh-Performance Carbon Aerogel Air Cathodes for Microbial Fuel Cellsen
dc.typeArticleen
dc.identifier.journalChemSusChemen
dc.contributor.institutionState Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment; Tsinghua University; Beijing 100084 P.R.Chinaen
dc.contributor.institutionState Key Laboratory of Urban Water Resource and Environment; Harbin Institute of Technology; No. 73 Huanghe Road Nangang District Harbin 150090 P.R.Chinaen
dc.contributor.institutionDepartment of Materials Science and Engineering; Stanford University; Stanford CA 94305 USAen
dc.contributor.institutionDepartment of Civil & Environmental Engineering; Penn State University; 231Q Sackett Building University Park PA 16802 USAen
dc.contributor.institutionMax-Planck Institute of Colloids and Interfaces; Am Mühlenberg 1 14476 Potsdam Germanyen
kaust.grant.numberKUS-I1-003-13en
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