1 Ocak 2010 Dergi makalesi Açık Erişim

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

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  <dc:creator>Aktas, Ozge</dc:creator>
  <dc:creator>Yasyerli, Sena</dc:creator>
  <dc:creator>Dogu, Gulsen</dc:creator>
  <dc:creator>Dogu, Timur</dc:creator>
  <dc:date>2010-01-01</dc:date>
  <dc:description>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 &lt;&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.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/24559</dc:identifier>
  <dc:identifier>oai:zenodo.org:24559</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>INDUSTRIAL &amp; ENGINEERING CHEMISTRY RESEARCH 49(15) 6790-6802</dc:source>
  <dc:title>Effect of Synthesis Conditions on the Structure and Catalytic Performance of V- and Ce-Incorporated SBA-15-like Materials in Propane Selective Oxidation</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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