1 Ocak 2010 Dergi makalesi Açık Erişim

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

Citation Style Language JSON

{
  "DOI": "10.1021/ie901672b", 
  "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 << 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.", 
  "author": [
    {
      "family": "Aktas", 
      "given": " Ozge"
    }, 
    {
      "family": "Yasyerli", 
      "given": " Sena"
    }, 
    {
      "family": "Dogu", 
      "given": " Gulsen"
    }, 
    {
      "family": "Dogu", 
      "given": " Timur"
    }
  ], 
  "container_title": "INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH", 
  "id": "24559", 
  "issue": "15", 
  "issued": {
    "date-parts": [
      [
        2010, 
        1, 
        1
      ]
    ]
  }, 
  "page": "6790-6802", 
  "title": "Effect of Synthesis Conditions on the Structure and Catalytic Performance of V- and Ce-Incorporated SBA-15-like Materials in Propane Selective Oxidation", 
  "type": "article-journal", 
  "volume": "49"
}