Sonochemically prepared Pt/CeO2 and its application as a catalyst in ethyl acetate combustion

Nina Perkas; Hadar Rotter; Leonid Vradman; Miron V. Landau; Aharon Gedanken

doi:10.1021/la0600907

Sonochemically prepared Pt/CeO₂ and its application as a catalyst in ethyl acetate combustion

Nina Perkas, Hadar Rotter, Leonid Vradman, Miron V. Landau, Aharon Gedanken

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

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.

Original language	English
Pages (from-to)	7072-7077
Number of pages	6
Journal	Langmuir
Volume	22
Issue number	16
DOIs	https://doi.org/10.1021/la0600907
State	Published - 1 Aug 2006

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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.",

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T1 - Sonochemically prepared Pt/CeO2 and its application as a catalyst in ethyl acetate combustion

AU - Perkas, Nina

AU - Rotter, Hadar

AU - Vradman, Leonid

AU - Landau, Miron V.

AU - Gedanken, Aharon

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N2 - 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.

AB - 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.

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Sonochemically prepared Pt/CeO₂ and its application as a catalyst in ethyl acetate combustion

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