Selective hydrogenation of cinnamaldehyde using Pd catalysts supported on Mg/Al mixed oxides: Influence of the Pd incorporation method

María J. Martínez-Ortiz, Miguel A. de la Rosa-Guzmán, Jorge R. Vargas-García, Jorge L. Flores-Moreno, Nancy Castillo, Ariel Guzmán-Vargas, Sara Morandi, Rosa M. Pérez-Gutiérrez

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Abstract

© 2017 Canadian Society for Chemical Engineering. A series of hydrotalcite-like compounds was synthesized by varying Mg/Al molar ratio with values of 2, 3, and 4. After thermal treatment at 823K, the corresponding mixed oxides were obtained and used as catalytic supports. The incorporation of a Pd metallic phase (0.5g/g loading), was carried out by two methods: 1) in situ vapour phase thermal decomposition, and 2) impregnation by organic method. Fresh and calcined samples were characterized by XRD and N2 sorption experiments. The basic and metal functions were analyzed by CO2-TPD and H2-TPR. The Pd-support interaction was studied by FTIR spectroscopy using CO as a probe molecule while the morphology of Pd nanoparticles on the catalysts was studied by SEM, HRTEM, and theoretical simulation using the Fast Fourier Transform (FFT) method. Finally, the catalytic activity results showed a higher conversion towards hydrocinnamaldehyde in the cinnamaldehyde hydrogenation reaction for the catalysts prepared by vapour phase thermal decomposition, compared with those prepared by organic method, showing the significant dependence on the catalytic activity and the Pd incorporation method.
Original languageAmerican English
JournalCanadian Journal of Chemical Engineering
DOIs
StatePublished - 1 Jan 2017

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hydrotalcite
Catalyst supports
Oxides
Hydrogenation
Catalyst activity
Pyrolysis
Vapors
Catalysts
Chemical engineering
Carbon Monoxide
Temperature programmed desorption
Impregnation
Fast Fourier transforms
Sorption
Metals
Heat treatment
Spectroscopy
Nanoparticles
Scanning electron microscopy
Molecules

Cite this

@article{fb84a5c5d9504a34955ce0fb140dea55,
title = "Selective hydrogenation of cinnamaldehyde using Pd catalysts supported on Mg/Al mixed oxides: Influence of the Pd incorporation method",
abstract = "{\circledC} 2017 Canadian Society for Chemical Engineering. A series of hydrotalcite-like compounds was synthesized by varying Mg/Al molar ratio with values of 2, 3, and 4. After thermal treatment at 823K, the corresponding mixed oxides were obtained and used as catalytic supports. The incorporation of a Pd metallic phase (0.5g/g loading), was carried out by two methods: 1) in situ vapour phase thermal decomposition, and 2) impregnation by organic method. Fresh and calcined samples were characterized by XRD and N2 sorption experiments. The basic and metal functions were analyzed by CO2-TPD and H2-TPR. The Pd-support interaction was studied by FTIR spectroscopy using CO as a probe molecule while the morphology of Pd nanoparticles on the catalysts was studied by SEM, HRTEM, and theoretical simulation using the Fast Fourier Transform (FFT) method. Finally, the catalytic activity results showed a higher conversion towards hydrocinnamaldehyde in the cinnamaldehyde hydrogenation reaction for the catalysts prepared by vapour phase thermal decomposition, compared with those prepared by organic method, showing the significant dependence on the catalytic activity and the Pd incorporation method.",
author = "Mart{\'i}nez-Ortiz, {Mar{\'i}a J.} and {de la Rosa-Guzm{\'a}n}, {Miguel A.} and Vargas-Garc{\'i}a, {Jorge R.} and Flores-Moreno, {Jorge L.} and Nancy Castillo and Ariel Guzm{\'a}n-Vargas and Sara Morandi and P{\'e}rez-Guti{\'e}rrez, {Rosa M.}",
year = "2017",
month = "1",
day = "1",
doi = "10.1002/cjce.22946",
language = "American English",
journal = "Canadian Journal of Chemical Engineering",
issn = "0008-4034",
publisher = "Wiley-Blackwell",

}

TY - JOUR

T1 - Selective hydrogenation of cinnamaldehyde using Pd catalysts supported on Mg/Al mixed oxides: Influence of the Pd incorporation method

AU - Martínez-Ortiz, María J.

AU - de la Rosa-Guzmán, Miguel A.

AU - Vargas-García, Jorge R.

AU - Flores-Moreno, Jorge L.

AU - Castillo, Nancy

AU - Guzmán-Vargas, Ariel

AU - Morandi, Sara

AU - Pérez-Gutiérrez, Rosa M.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - © 2017 Canadian Society for Chemical Engineering. A series of hydrotalcite-like compounds was synthesized by varying Mg/Al molar ratio with values of 2, 3, and 4. After thermal treatment at 823K, the corresponding mixed oxides were obtained and used as catalytic supports. The incorporation of a Pd metallic phase (0.5g/g loading), was carried out by two methods: 1) in situ vapour phase thermal decomposition, and 2) impregnation by organic method. Fresh and calcined samples were characterized by XRD and N2 sorption experiments. The basic and metal functions were analyzed by CO2-TPD and H2-TPR. The Pd-support interaction was studied by FTIR spectroscopy using CO as a probe molecule while the morphology of Pd nanoparticles on the catalysts was studied by SEM, HRTEM, and theoretical simulation using the Fast Fourier Transform (FFT) method. Finally, the catalytic activity results showed a higher conversion towards hydrocinnamaldehyde in the cinnamaldehyde hydrogenation reaction for the catalysts prepared by vapour phase thermal decomposition, compared with those prepared by organic method, showing the significant dependence on the catalytic activity and the Pd incorporation method.

AB - © 2017 Canadian Society for Chemical Engineering. A series of hydrotalcite-like compounds was synthesized by varying Mg/Al molar ratio with values of 2, 3, and 4. After thermal treatment at 823K, the corresponding mixed oxides were obtained and used as catalytic supports. The incorporation of a Pd metallic phase (0.5g/g loading), was carried out by two methods: 1) in situ vapour phase thermal decomposition, and 2) impregnation by organic method. Fresh and calcined samples were characterized by XRD and N2 sorption experiments. The basic and metal functions were analyzed by CO2-TPD and H2-TPR. The Pd-support interaction was studied by FTIR spectroscopy using CO as a probe molecule while the morphology of Pd nanoparticles on the catalysts was studied by SEM, HRTEM, and theoretical simulation using the Fast Fourier Transform (FFT) method. Finally, the catalytic activity results showed a higher conversion towards hydrocinnamaldehyde in the cinnamaldehyde hydrogenation reaction for the catalysts prepared by vapour phase thermal decomposition, compared with those prepared by organic method, showing the significant dependence on the catalytic activity and the Pd incorporation method.

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