title: Sonochemically prepared Pt/CeO2 and its application as a catalyst in ethyl acetate combustion.
abstract: Highly dispersed Pt nanoparticles were incorporated in CeO2 nanopowders by an ultrasound-assisted reduction procedure. The activity of the Pt/CeO2 catalysts was studied in the reaction of the ethyl acetate combustion, and complete conversion was achieved at low temperature. It was demonstrated that the higher dispersion of the CeO2 support, the better the performance of the Pt/CeO2 catalysts. The catalysts were characterized by XRD, TEM, HRTEM, EDX, BET, and XPS. The homogeneous incorporation of 2-4 nm Pt nanoparticles into the interparticle distance of the CeO2 nanopowders was demonstrated. The advantage of the sonochemical method for catalyst preparation, in comparison with the traditional incipient wetness impregnation, was explained as the result of the homogeneity and better dispersion of the active metal phase obtained by ultrasound irradiation.
authors.affiliation: Department of Chemistry and Kanbar Laboratory for Nanomaterials, Bar-Ilan University Center for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel.
authors.forename: Nina
authors.initials: N
authors.lastname: Perkas
authors.forename: Hadar
authors.initials: H
authors.lastname: Rotter
authors.forename: Leonid
authors.initials: L
authors.lastname: Vradman
authors.forename: Miron V
authors.initials: MV
authors.lastname: Landau
authors.forename: Aharon
authors.initials: A
authors.lastname: Gedanken