1 Ocak 2009 Dergi makalesi Açık Erişim

Deligoz, Huseyin; Yilmazturk, Serpil; Karaca, Tuba; Ozdemir, Hasan; Koc, S. Naci; Oksuzomer, Faruk; Durmus, Ali; Gurkaynak, M. Ali

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/38121</identifier>
  <creators>
    <creator>
      <creatorName>Deligoz, Huseyin</creatorName>
      <givenName>Huseyin</givenName>
      <familyName>Deligoz</familyName>
      <affiliation>Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Avcilar, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Yilmazturk, Serpil</creatorName>
      <givenName>Serpil</givenName>
      <familyName>Yilmazturk</familyName>
      <affiliation>Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Avcilar, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Karaca, Tuba</creatorName>
      <givenName>Tuba</givenName>
      <familyName>Karaca</familyName>
      <affiliation>Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Avcilar, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Ozdemir, Hasan</creatorName>
      <givenName>Hasan</givenName>
      <familyName>Ozdemir</familyName>
      <affiliation>Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Avcilar, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Koc, S. Naci</creatorName>
      <givenName>S. Naci</givenName>
      <familyName>Koc</familyName>
      <affiliation>Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Avcilar, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Oksuzomer, Faruk</creatorName>
      <givenName>Faruk</givenName>
      <familyName>Oksuzomer</familyName>
      <affiliation>Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Avcilar, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Durmus, Ali</creatorName>
      <givenName>Ali</givenName>
      <familyName>Durmus</familyName>
      <affiliation>Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Avcilar, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Gurkaynak, M. Ali</creatorName>
      <givenName>M. Ali</givenName>
      <familyName>Gurkaynak</familyName>
      <affiliation>Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Avcilar, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Self-Assembled Polyelectrolyte Multilayered Films On Nafion With Lowered Methanol Cross-Over For Dmfc Applications</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2009</publicationYear>
  <dates>
    <date dateType="Issued">2009-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/38121</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.memsci.2008.10.055</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">The paper is concerned with the deposition of self-assembled polyelectrolyte multilayer on Naflon membrane by layer-by-layer (LbL) technique with lowered methanol cross-over for direct methanol fuel cell (DMFC) applications. The formation of self-assembled multilayered film on Nafion was characterized by UV-vis spectroscopy and it was found that the polyelectrolyte layers growth on the Nafion surface regularly. Furthermore, the proton conductivity and methanol cross-over measurements were carried out for characterization of the LbL self-assembled composite membranes. The results showed that the concentration and pH of the polyelectrolytes significantly affect the proton conductivity and methanol barrier properties of the composite membranes. 10(-1) monomol polyelectrolyte concentration and pH 1.8 was found to be optimum deposition conditions considering proton conductivity and methanol permeation properties of the LbL self-assembled composite membranes. The methanol permeability of the 10 bilayers of PAH1.8/PSS1.8 deposited LbL self-assembly composite membrane was significantly suppressed and found to be 4.41 X 10(-7) cm(2)/s while the proton conductivity value is in acceptable range for fuel cell applications. (C) 2008 Elsevier B.V. All rights reserved.</description>
  </descriptions>
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