title: Oxidation of alkyl aromatics over SBA-15 supported cobalt oxide.
abstract: SBA-15 supported Co3O4 with different weight percentage have been prepared by wet impregnation method. The prepared catalysts were characterised by XRD, DRUV-vis, FT-IR, N2 adsorption-desorption, TPR, XPS, SEM and TEM. The TPR profile revealed good dispersion of active sites and interaction of Co3O4 on SBA-15 support. The catalytic activity of SBA-15 supported Co3O4 was evolved in liquid phase benzylic oxidation under mild condition using H2O2 as the oxidant. The benzylic oxidation was ascribed by hydrogen abstraction of the C-H bond. The various reaction parameters such as Co3O4 loading, solvent, temperature and reaction time on the catalytic activity were also investigated. The 5 wt% of Co3O4/SBA-15 catalyst was found to exhibit high conversion (-75%) with product selectivity of -87%.
authors.affiliation: Department of Chemistry, Anna University, Chennai 600025, India.
authors.forename: P
authors.initials: P
authors.lastname: Visuvamithiran
authors.forename: B
authors.initials: B
authors.lastname: Sundaravel
authors.forename: M
authors.initials: M
authors.lastname: Palanichamy
authors.forename: V
authors.initials: V
authors.lastname: Murugesan