Ultrasonic irradiation as activity and selectivity improving factor in the hydrogenation of cinnamaldehyde over Pt/SiO2 catalysts

György Szöllösi; Béla Török; Gerda Szakonyi; István Kun; Mihály Bartók

doi:10.1016/S0926-860X(98)00132-X

Ultrasonic irradiation as activity and selectivity improving factor in the hydrogenation of cinnamaldehyde over Pt/SiO₂ catalysts

György Szöllösi
, Béla Török
, Gerda Szakonyi
, István Kun
, Mihály Bartók

Chemistry

University of Szeged
Hungarian Academy of Sciences

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

Abstract

The effect of ultrasounds on the platinum-catalyzed hydrogenation of cinnamaldehyde was studied in the liquid phase over Pt/SiO₂, Pt/Al₂O₃, Pt/C and EuroPt-1 catalysts under mild experimental conditions (333 K, 1 atm H₂). The sonochemical pretreatment was found to be highly beneficial for the selective formation of cinnamyl alcohol (up to 80%) over silica-supported catalysts, besides the significant reaction rate increase (two-fold increase). The actual changes of the catalysts were studied by transmission electron microscopy, and the mechanistic interpretation of the sonochemical effect is also given.

Original language	English
Pages (from-to)	225-232
Number of pages	8
Journal	Applied Catalysis A: General
Volume	172
Issue number	2
DOIs	https://doi.org/10.1016/S0926-860X(98)00132-X
State	Published - Sep 14 1998

ASJC Scopus Subject Areas

Catalysis
Process Chemistry and Technology

Keywords

Cinnamaldehyde
Hydrogenation
Particle size morphology
Transmission electron microscopy
Ultrasounds

Access to Document

10.1016/S0926-860X(98)00132-X

Cite this

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title = "Ultrasonic irradiation as activity and selectivity improving factor in the hydrogenation of cinnamaldehyde over Pt/SiO2 catalysts",

abstract = "The effect of ultrasounds on the platinum-catalyzed hydrogenation of cinnamaldehyde was studied in the liquid phase over Pt/SiO2, Pt/Al2O3, Pt/C and EuroPt-1 catalysts under mild experimental conditions (333 K, 1 atm H2). The sonochemical pretreatment was found to be highly beneficial for the selective formation of cinnamyl alcohol (up to 80\%) over silica-supported catalysts, besides the significant reaction rate increase (two-fold increase). The actual changes of the catalysts were studied by transmission electron microscopy, and the mechanistic interpretation of the sonochemical effect is also given.",

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T1 - Ultrasonic irradiation as activity and selectivity improving factor in the hydrogenation of cinnamaldehyde over Pt/SiO2 catalysts

AU - Szöllösi, György

AU - Török, Béla

AU - Szakonyi, Gerda

AU - Kun, István

AU - Bartók, Mihály

PY - 1998/9/14

Y1 - 1998/9/14

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AB - The effect of ultrasounds on the platinum-catalyzed hydrogenation of cinnamaldehyde was studied in the liquid phase over Pt/SiO2, Pt/Al2O3, Pt/C and EuroPt-1 catalysts under mild experimental conditions (333 K, 1 atm H2). The sonochemical pretreatment was found to be highly beneficial for the selective formation of cinnamyl alcohol (up to 80%) over silica-supported catalysts, besides the significant reaction rate increase (two-fold increase). The actual changes of the catalysts were studied by transmission electron microscopy, and the mechanistic interpretation of the sonochemical effect is also given.

KW - Cinnamaldehyde

KW - Hydrogenation

KW - Particle size morphology

KW - Transmission electron microscopy

KW - Ultrasounds

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