Oxidation of carbon black, propene and toluene on highly reducible Co/SBA-15 catalysts

Nissrine El Hassan, Samer Aouad, Sandra Casale, Henri El Zakhem, Hanna El Nakat

Research output: Contribution to journalArticlepeer-review


Different cobalt loadings (3, 6, 12, 24 wt%) were impregnated using the double-solvent technique on SBA-15 calcined at 500 °C presenting a high specific surface area. The impregnated solids were stabilized at 450 °C in the air. The impregnation of cobalt led to the incorporation of cobalt oxide nanoparticles in the mesoporosity of the SBA-15. The cobalt nanoparticles were easily reducible compared to similar solids prepared by different methods. The presence of these nanoparticles enhanced significantly the reactivity of the catalysts in the considered reaction. The addition of more than 12 wt% of cobalt did not enhance the catalytic reactivity due to the deposition of cobalt oxide species on the surface of the support. The cobalt-impregnated solids are efficient in decreasing the oxidation temperature of different probe molecules and are totally selective towards the formation of CO2 and H 2O.

Original languageEnglish (US)
Pages (from-to)913-919
Number of pages7
JournalComptes Rendus Chimie
Issue number9
StatePublished - Sep 2014


  • Cobalt
  • Mesopores
  • Nanoparticles
  • Oxidation
  • SBA-15

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering


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