1 Ocak 2010 Dergi makalesi Açık Erişim

Aktas, Ozge; Yasyerli, Sena; Dogu, Gulsen; Dogu, Timur

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/24559</identifier>
  <creators>
    <creator>
      <creatorName>Aktas, Ozge</creatorName>
      <givenName>Ozge</givenName>
      <familyName>Aktas</familyName>
      <affiliation>Gazi Univ, Dept Chem Engn, TR-06570 Ankara, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Yasyerli, Sena</creatorName>
      <givenName>Sena</givenName>
      <familyName>Yasyerli</familyName>
      <affiliation>Gazi Univ, Dept Chem Engn, TR-06570 Ankara, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Dogu, Gulsen</creatorName>
      <givenName>Gulsen</givenName>
      <familyName>Dogu</familyName>
      <affiliation>Gazi Univ, Dept Chem Engn, TR-06570 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>Effect Of Synthesis Conditions On The Structure And Catalytic Performance Of V- And Ce-Incorporated Sba-15-Like Materials In Propane Selective Oxidation</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/24559</alternateIdentifier>
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  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1021/ie901672b</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">Vanadia- and/or ceria-incorporated SBA-15-like materials were prepared by impregnation and one-pot hydrothermal synthesis procedures at different solution pH values. The pH of the synthesis solution was found to have a very strong effect on the pore structure, chemical composition, and morphology of the synthesized materials. Materials synthesized by impregnation of V and/or Ce and by the one-pot hydrothermal route at pH &amp;lt;&amp;lt; 1.0 showed the characteristic ordered pore structure of SBA-15. However, the materials prepared by the one-pot synthesis route at pH 1.5 gave complex pore structures with bottleneck-shaped and/or slit-like interconnected pores. Activity tests in the selective oxidation of propane showed higher activities for the V-incorporated materials than for the materials containing Ce and V-Ce. Catalysts synthesized by impregnation gave higher propane conversions. However, the propylene selectivity values were higher with the catalysts prepared by the one-pot route. An increase in the temperature from 550 to 600 degrees C led to increases in both the conversion and the propylene selectivity with the V- and V-Ce-incorporated materials prepared by the one-pot procedure at pH 1.5. For the V-incorporated catalyst prepared by this route, the propane conversion and propylene selectivity were obtained as 40% and 62%, respectively, at a space time of 0.4 s.g.cm(-3) and a temperature of 600 degrees C.</description>
  </descriptions>
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