Entrapment of metallic palladium and a rhodium(I) complex in a silica sol-gel matrix: Formation of a highly active recyclable arene hydrogenation catalyst

Raed Abu-Reziq; David Avnir; Irena Miloslavski; Herbert Schumann; Jochanan Blum

doi:10.1016/S1381-1169(02)00012-2

Entrapment of metallic palladium and a rhodium(I) complex in a silica sol-gel matrix: Formation of a highly active recyclable arene hydrogenation catalyst

Raed Abu-Reziq
, David Avnir
, Irena Miloslavski
, Herbert Schumann
, Jochanan Blum^*

^*Corresponding author for this work

Institute of Chemistry

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

48 Scopus citations

Abstract

A combined palladium-rhodium catalyst, generated by silica sol-gel-co-entrapment of metallic palladium and [Rh(cod) (μ-Cl)]₂, catalyzes under ambient conditions the hydrogenation of toluene and other simple benzene derivatives. The catalyst is perfectly recyclable and promotes at 80°C and 400 psi, also the hydrogenation of polycyclic and sterically hindered arenes that are capable of penetrating the matrix pores. A synergistic effect is assumed to exist between the two metals, as either of the entrapped metallic components is a less active catalyst than the combination of both.

Original language	English
Pages (from-to)	179-185
Number of pages	7
Journal	Journal of Molecular Catalysis A: Chemical
Volume	185
Issue number	1-2
DOIs	https://doi.org/10.1016/S1381-1169(02)00012-2
State	Published - 8 Jul 2002

Bibliographical note

Funding Information:
We thank the German–Israeli Foundation for Scientific Research and Development (GIF), the Israel Science Foundation (founded by the Israel Academy of Science and Humanities) and the Infrastructure Fund, Tashtiot, provided by the Ministry of Science, Culture and Sport, for financial support of this study.

Keywords

Arene hydrogenation
Palladium
Rhodium
Sol-gel-entrapment

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10.1016/S1381-1169(02)00012-2

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title = "Entrapment of metallic palladium and a rhodium(I) complex in a silica sol-gel matrix: Formation of a highly active recyclable arene hydrogenation catalyst",

abstract = "A combined palladium-rhodium catalyst, generated by silica sol-gel-co-entrapment of metallic palladium and [Rh(cod) (μ-Cl)]2, catalyzes under ambient conditions the hydrogenation of toluene and other simple benzene derivatives. The catalyst is perfectly recyclable and promotes at 80°C and 400 psi, also the hydrogenation of polycyclic and sterically hindered arenes that are capable of penetrating the matrix pores. A synergistic effect is assumed to exist between the two metals, as either of the entrapped metallic components is a less active catalyst than the combination of both.",

keywords = "Arene hydrogenation, Palladium, Rhodium, Sol-gel-entrapment",

author = "Raed Abu-Reziq and David Avnir and Irena Miloslavski and Herbert Schumann and Jochanan Blum",

note = "Funding Information: We thank the German–Israeli Foundation for Scientific Research and Development (GIF), the Israel Science Foundation (founded by the Israel Academy of Science and Humanities) and the Infrastructure Fund, Tashtiot, provided by the Ministry of Science, Culture and Sport, for financial support of this study.",

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doi = "10.1016/S1381-1169(02)00012-2",

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Entrapment of metallic palladium and a rhodium(I) complex in a silica sol-gel matrix: Formation of a highly active recyclable arene hydrogenation catalyst. / Abu-Reziq, Raed ; Avnir, David; Miloslavski, Irena et al.
In: Journal of Molecular Catalysis A: Chemical, Vol. 185, No. 1-2, 08.07.2002, p. 179-185.

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

TY - JOUR

T1 - Entrapment of metallic palladium and a rhodium(I) complex in a silica sol-gel matrix

T2 - Formation of a highly active recyclable arene hydrogenation catalyst

AU - Abu-Reziq, Raed

AU - Avnir, David

AU - Miloslavski, Irena

AU - Schumann, Herbert

AU - Blum, Jochanan

N1 - Funding Information: We thank the German–Israeli Foundation for Scientific Research and Development (GIF), the Israel Science Foundation (founded by the Israel Academy of Science and Humanities) and the Infrastructure Fund, Tashtiot, provided by the Ministry of Science, Culture and Sport, for financial support of this study.

PY - 2002/7/8

Y1 - 2002/7/8

N2 - A combined palladium-rhodium catalyst, generated by silica sol-gel-co-entrapment of metallic palladium and [Rh(cod) (μ-Cl)]2, catalyzes under ambient conditions the hydrogenation of toluene and other simple benzene derivatives. The catalyst is perfectly recyclable and promotes at 80°C and 400 psi, also the hydrogenation of polycyclic and sterically hindered arenes that are capable of penetrating the matrix pores. A synergistic effect is assumed to exist between the two metals, as either of the entrapped metallic components is a less active catalyst than the combination of both.

AB - A combined palladium-rhodium catalyst, generated by silica sol-gel-co-entrapment of metallic palladium and [Rh(cod) (μ-Cl)]2, catalyzes under ambient conditions the hydrogenation of toluene and other simple benzene derivatives. The catalyst is perfectly recyclable and promotes at 80°C and 400 psi, also the hydrogenation of polycyclic and sterically hindered arenes that are capable of penetrating the matrix pores. A synergistic effect is assumed to exist between the two metals, as either of the entrapped metallic components is a less active catalyst than the combination of both.

KW - Arene hydrogenation

KW - Palladium

KW - Rhodium

KW - Sol-gel-entrapment

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IS - 1-2

ER -

Entrapment of metallic palladium and a rhodium(I) complex in a silica sol-gel matrix: Formation of a highly active recyclable arene hydrogenation catalyst

Abstract

Bibliographical note

Keywords

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