1 Ocak 2010 Dergi makalesi Açık Erişim

Ciftci, Aysegul; Sezgi, Naime Asli; Dogu, Timur

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/26951</identifier>
  <creators>
    <creator>
      <creatorName>Ciftci, Aysegul</creatorName>
      <givenName>Aysegul</givenName>
      <familyName>Ciftci</familyName>
      <affiliation>Middle E Tech Univ, Dept Chem Engn, TR-06531 Ankara, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Sezgi, Naime Asli</creatorName>
      <givenName>Naime Asli</givenName>
      <familyName>Sezgi</familyName>
      <affiliation>Middle E Tech Univ, Dept Chem Engn, TR-06531 Ankara, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Dogu, Timur</creatorName>
      <givenName>Timur</givenName>
      <familyName>Dogu</familyName>
      <affiliation>Middle E Tech Univ, Dept Chem Engn, TR-06531 Ankara, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Nafion-Incorporated Silicate Structured Nanocomposite Mesoporous Catalysts For Dimethyl Ether Synthesis</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2010</publicationYear>
  <dates>
    <date dateType="Issued">2010-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/26951</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1021/ie9015667</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">Being chemically and thermally stable, Nation resin is considered to be an attractive solid acid catalyst. Although it has high acid strength and the ability to catalyze a wide range of reactions, the catalytic activity of Nation is limited, because of its very low specific surface area. In this study, mesoporous Nafion-silica nanocomposites were developed by following a one-pot acidic hydrothermal synthesis procedure. Synthesized catalysts were determined to have well-dispersed structures with high surface area values (595-792 m(2)/g) and strong Bronsted, as well as Lewis, acid sites. The activities of these novel catalysts were tested in dimethyl ether synthesis from methanol in a flow system. The effects of modifications in the synthesis procedure and Nafion loading showed that the material synthesized from a solution containing a Nafion/silica weight ratio of 0.15 and refluxed with a 2 M sulfuric acid-ethanol (SAE) mixture for surfactant removal was the best catalyst for this reaction. Production of the green transportation fuel alternate dimethyl ether (DME) was achieved with this catalyst at very high yields with almost 100% DME selectivity at &amp;gt;180 degrees C.</description>
  </descriptions>
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