A simple and efficient route to active and dispersed silica supported palladium nanoparticles

Alexandra Barau; Vitaly Budarin; Agneta Caragheorgheopol; Rafael Luque; Duncan J. Macquarrie; Ambra Prelle; Valentin S. Teodorescu; Maria Zaharescu

doi:10.1007/s10562-008-9465-x

A simple and efficient route to active and dispersed silica supported palladium nanoparticles

Alexandra Barau, Vitaly Budarin, Agneta Caragheorgheopol, Rafael Luque, Duncan J. Macquarrie, Ambra Prelle, Valentin S. Teodorescu, Maria Zaharescu

Chemistry

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

Abstract

Various mesoporous silica supported Pd materials were prepared by different methodologies in order to control and optimize the metal nanoparticle sizes for catalytic applications. The catalytic activities (conversion, mol% and selectivity to methyl-cinnamate) of the supported palladium catalysts were investigated in the Heck reaction under microwave irradiation using various haloarenes. Pd materials prepared by co-precipitation exhibited a very poor activity in the Heck reaction compared to that of Pd impregnated samples. Impregnated materials prepared without the use of a specific reducing agent had comparable activities to those of APTS-NaBH4 reduced Pd materials, validating the simplicity of the methodology. High selectivities to methylcinnamate were obtained for all materials.

Original language	English
Pages (from-to)	204-214
Number of pages	11
Journal	Catalysis Letters
Volume	124
Issue number	3-4
DOIs	https://doi.org/10.1007/s10562-008-9465-x
Publication status	Published - Aug 2008

Keywords

mesoporous silica
Pd nanoparticles
heterogenous catalysis
Heck reaction
CROSS-COUPLING REACTIONS
HECK REACTIONS
PD NANOPARTICLES
MESOPOROUS ORGANOSILICAS
AEROBIC OXIDATION
CATALYST
HYDROGENATION
PD/SIO2
SBA-15
SUZUKI

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title = "A simple and efficient route to active and dispersed silica supported palladium nanoparticles",

abstract = "Various mesoporous silica supported Pd materials were prepared by different methodologies in order to control and optimize the metal nanoparticle sizes for catalytic applications. The catalytic activities (conversion, mol% and selectivity to methyl-cinnamate) of the supported palladium catalysts were investigated in the Heck reaction under microwave irradiation using various haloarenes. Pd materials prepared by co-precipitation exhibited a very poor activity in the Heck reaction compared to that of Pd impregnated samples. Impregnated materials prepared without the use of a specific reducing agent had comparable activities to those of APTS-NaBH4 reduced Pd materials, validating the simplicity of the methodology. High selectivities to methylcinnamate were obtained for all materials.",

keywords = "mesoporous silica, Pd nanoparticles, heterogenous catalysis, Heck reaction, CROSS-COUPLING REACTIONS, HECK REACTIONS, PD NANOPARTICLES, MESOPOROUS ORGANOSILICAS, AEROBIC OXIDATION, CATALYST, HYDROGENATION, PD/SIO2, SBA-15, SUZUKI",

author = "Alexandra Barau and Vitaly Budarin and Agneta Caragheorgheopol and Rafael Luque and Macquarrie, {Duncan J.} and Ambra Prelle and Teodorescu, {Valentin S.} and Maria Zaharescu",

year = "2008",

month = aug,

doi = "10.1007/s10562-008-9465-x",

language = "English",

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journal = "Catalysis Letters",

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T1 - A simple and efficient route to active and dispersed silica supported palladium nanoparticles

AU - Barau, Alexandra

AU - Budarin, Vitaly

AU - Caragheorgheopol, Agneta

AU - Luque, Rafael

AU - Macquarrie, Duncan J.

AU - Prelle, Ambra

AU - Teodorescu, Valentin S.

AU - Zaharescu, Maria

PY - 2008/8

Y1 - 2008/8

N2 - Various mesoporous silica supported Pd materials were prepared by different methodologies in order to control and optimize the metal nanoparticle sizes for catalytic applications. The catalytic activities (conversion, mol% and selectivity to methyl-cinnamate) of the supported palladium catalysts were investigated in the Heck reaction under microwave irradiation using various haloarenes. Pd materials prepared by co-precipitation exhibited a very poor activity in the Heck reaction compared to that of Pd impregnated samples. Impregnated materials prepared without the use of a specific reducing agent had comparable activities to those of APTS-NaBH4 reduced Pd materials, validating the simplicity of the methodology. High selectivities to methylcinnamate were obtained for all materials.

AB - Various mesoporous silica supported Pd materials were prepared by different methodologies in order to control and optimize the metal nanoparticle sizes for catalytic applications. The catalytic activities (conversion, mol% and selectivity to methyl-cinnamate) of the supported palladium catalysts were investigated in the Heck reaction under microwave irradiation using various haloarenes. Pd materials prepared by co-precipitation exhibited a very poor activity in the Heck reaction compared to that of Pd impregnated samples. Impregnated materials prepared without the use of a specific reducing agent had comparable activities to those of APTS-NaBH4 reduced Pd materials, validating the simplicity of the methodology. High selectivities to methylcinnamate were obtained for all materials.

KW - mesoporous silica

KW - Pd nanoparticles

KW - heterogenous catalysis

KW - Heck reaction

KW - CROSS-COUPLING REACTIONS

KW - HECK REACTIONS

KW - PD NANOPARTICLES

KW - MESOPOROUS ORGANOSILICAS

KW - AEROBIC OXIDATION

KW - CATALYST

KW - HYDROGENATION

KW - PD/SIO2

KW - SBA-15

KW - SUZUKI

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U2 - 10.1007/s10562-008-9465-x

DO - 10.1007/s10562-008-9465-x

M3 - Article

SN - 1011-372X

VL - 124

SP - 204

EP - 214

JO - Catalysis Letters

JF - Catalysis Letters

IS - 3-4

ER -

A simple and efficient route to active and dispersed silica supported palladium nanoparticles

Abstract

Keywords

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