TY - JOUR
T1 - Selective hydrogenation of cinnamaldehyde using pd catalysts supported on mg/al mixed oxides
T2 - 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.
N1 - Publisher Copyright:
© 2017 Canadian Society for Chemical Engineering.
PY - 2018/1
Y1 - 2018/1
N2 - 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 823 K, the corresponding mixed oxides were obtained and used as catalytic supports. The incorporation of a Pd metallic phase (0.5 g/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 - 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 823 K, the corresponding mixed oxides were obtained and used as catalytic supports. The incorporation of a Pd metallic phase (0.5 g/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.
KW - Cinnamaldehyde
KW - Hydrotalcite
KW - Pd catalysts
KW - Pd nanoparticles
KW - Selective hydrogenation
UR - http://www.scopus.com/inward/record.url?scp=85051853317&partnerID=8YFLogxK
U2 - 10.1002/cjce.22946
DO - 10.1002/cjce.22946
M3 - Artículo
SN - 0008-4034
VL - 96
SP - 297
EP - 306
JO - Canadian Journal of Chemical Engineering
JF - Canadian Journal of Chemical Engineering
IS - 1
ER -