1 Ocak 2020 Dergi makalesi Açık Erişim

Ata, Kursat Can; Kadioglu, Tuncay; Turkmen, Anil Can; Celik, Cenk; Akay, Ramiz Gultekin

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/4951</identifier>
  <creators>
    <creator>
      <creatorName>Ata, Kursat Can</creatorName>
      <givenName>Kursat Can</givenName>
      <familyName>Ata</familyName>
      <affiliation>Kocaeli Univ, Mech Engn Dept, TR-41380 Kocaeli, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Kadioglu, Tuncay</creatorName>
      <givenName>Tuncay</givenName>
      <familyName>Kadioglu</familyName>
      <affiliation>Kocaeli Univ, Chem Engn Dept, TR-41380 Kocaeli, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Turkmen, Anil Can</creatorName>
      <givenName>Anil Can</givenName>
      <familyName>Turkmen</familyName>
      <affiliation>Kocaeli Univ, Mech Engn Dept, TR-41380 Kocaeli, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Celik, Cenk</creatorName>
      <givenName>Cenk</givenName>
      <familyName>Celik</familyName>
      <affiliation>Kocaeli Univ, Mech Engn Dept, TR-41380 Kocaeli, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Akay, Ramiz Gultekin</creatorName>
      <givenName>Ramiz Gultekin</givenName>
      <familyName>Akay</familyName>
      <affiliation>Kocaeli Univ, Chem Engn Dept, TR-41380 Kocaeli, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Investigation Of The Effects Of Speek And Its Clay Composite Membranes On The Performance Of Direct Borohydride Fuel Cell</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2020</publicationYear>
  <dates>
    <date dateType="Issued">2020-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/4951</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.ijhydene.2019.09.203</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">In this study, composite cation exchange membranes (CEM) were developed. With the experience from widely studied proton exchange membrane fuel cells (PEMFC), sulfonated polyether ether ketone (SPEEK) was prepared to be a more effective and cheaper ionomer alternative to the industry standard Nafion (R). SPEEK polymer membrane can reach sufficient ionic conductivities but have some mechanical and chemical stability problems (at a high degree of sulfonations (DS)). Therefore, in order to optimize the membrane, composite mixing with a well-known organic/inorganic clays called Cloisite (R) 15A, Cloisite (R) 308 and MMT were used. Test cells for both single-cell and conductivity were designed and constructed. The ionic conductivity cell was different than the ones used in most studies, measuring conductivity in-plane with 4 probes using EIS. The membranes were characterized for their proton conductivity with electrochemical impedance spectroscopy (EIS), for DS with H NMR, water uptake, and fuel cell performance tests. First results showed that the acidic sulfonic groups of SPEEK interacted with organic/inorganic clays and as a result of partial barrier the ionic conductivity was decreased but power densities were increased. SPEEK-Cloisite (R) 30B composite membrane has given 40 mW/cm(2) power density value which is higher than pure SPEEK membrane (35 mW/cm(2)). The proton conductivities of the final composite membranes were close to bare SPEEK membranes which are 0,065 and 0,075 S/cm for SPEEK-Cloisite (R) 30B and pristine SPEEK, respectively. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.</description>
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