Nanostructured membranes and electrodes with sulfonic acid functionalized carbon nanotubes

Handle URI:
http://hdl.handle.net/10754/561558
Title:
Nanostructured membranes and electrodes with sulfonic acid functionalized carbon nanotubes
Authors:
Tripathi, Bijay Prakash; Schieda, Mauricio; Shahi, Vinod Kumar; Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Abstract:
Herein we report the covalent functionalization of multiwall carbon nanotubes by grafting sulfanilic acid and their dispersion into sulfonated poly(ether ether ketone). The nanocomposites were explored as an option for tuning the proton and electron conductivity, swelling, water and alcohol permeability aiming at nanostructured membranes and electrodes for application in alcohol or hydrogen fuel cells and other electrochemical devices. The nanocomposites were extensively characterized, by studying their physicochemical and electrochemical properties. They were processed as self-supporting films with high mechanical stability, proton conductivity of 4.47 × 10 -2 S cm-1 at 30 °C and 16.8 × 10-2 S cm-1 at 80 °C and 100% humidity level, electron conductivity much higher than for the plain polymer. The methanol permeability could be reduced to 1/20, keeping water permeability at reasonable values. The ratio of bound water also increases with increasing content of sulfonated filler, helping in keeping water in the polymer in conditions of low external humidity level. © 2010 Elsevier B.V.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC); Nanostructured Polymeric Membrane Lab
Publisher:
Elsevier BV
Journal:
Journal of Power Sources
Issue Date:
Feb-2011
DOI:
10.1016/j.jpowsour.2010.08.110
Type:
Article
ISSN:
03787753
Sponsors:
The authors thank Dr. Lan Zhao for the microscopy. The work of B.P. Tripathi at GKSS was supported by DAAD.
Appears in Collections:
Articles; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorTripathi, Bijay Prakashen
dc.contributor.authorSchieda, Mauricioen
dc.contributor.authorShahi, Vinod Kumaren
dc.contributor.authorNunes, Suzana Pereiraen
dc.date.accessioned2015-08-02T09:14:10Zen
dc.date.available2015-08-02T09:14:10Zen
dc.date.issued2011-02en
dc.identifier.issn03787753en
dc.identifier.doi10.1016/j.jpowsour.2010.08.110en
dc.identifier.urihttp://hdl.handle.net/10754/561558en
dc.description.abstractHerein we report the covalent functionalization of multiwall carbon nanotubes by grafting sulfanilic acid and their dispersion into sulfonated poly(ether ether ketone). The nanocomposites were explored as an option for tuning the proton and electron conductivity, swelling, water and alcohol permeability aiming at nanostructured membranes and electrodes for application in alcohol or hydrogen fuel cells and other electrochemical devices. The nanocomposites were extensively characterized, by studying their physicochemical and electrochemical properties. They were processed as self-supporting films with high mechanical stability, proton conductivity of 4.47 × 10 -2 S cm-1 at 30 °C and 16.8 × 10-2 S cm-1 at 80 °C and 100% humidity level, electron conductivity much higher than for the plain polymer. The methanol permeability could be reduced to 1/20, keeping water permeability at reasonable values. The ratio of bound water also increases with increasing content of sulfonated filler, helping in keeping water in the polymer in conditions of low external humidity level. © 2010 Elsevier B.V.en
dc.description.sponsorshipThe authors thank Dr. Lan Zhao for the microscopy. The work of B.P. Tripathi at GKSS was supported by DAAD.en
dc.publisherElsevier BVen
dc.subjectCarbon nanotubesen
dc.subjectFuel cellsen
dc.subjectMembrane-electrodesen
dc.subjectMembranesen
dc.subjectNanocompositesen
dc.subjectPolymer mixed conductorsen
dc.titleNanostructured membranes and electrodes with sulfonic acid functionalized carbon nanotubesen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentNanostructured Polymeric Membrane Laben
dc.identifier.journalJournal of Power Sourcesen
dc.contributor.institutionElectro-Membrane Processes Division, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), G.B. Marg, Bhavnagar 364002, Gujarat, Indiaen
dc.contributor.institutionDepartment of Membranes for Sustainable Energy, GKSS Research Centre Geesthacht GmbH, Max Planck Str. 1, D-21502 Geesthacht, Germanyen
kaust.authorNunes, Suzana Pereiraen
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