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Silica supported silver nanoparticles from a silver(I) carboxylate: Highly active catalyst for regioselective hydrogenation

Steffan, Martin and Jakob, Alexander and Claus, Peter and Lang, Heinrich (2009):
Silica supported silver nanoparticles from a silver(I) carboxylate: Highly active catalyst for regioselective hydrogenation.
In: Catalysis Communications, pp. 437-441, 10, (5), [Online-Edition: http://dx.doi.org/10.1016/j.catcom.2008.10.003],
[Article]

Abstract

The selective hydrogenation of the α,β-unsaturated aldehyde citral (3,7-dimethyl-2,6-octadienal) was investigated with nano-sized silver particles on silica (Ag/SiO2). The catalysts were synthesized from the precursors silver nitrate and silver 2-[2-(2-methoxyethoxy)ethoxy]acetate [AgO2C(CH2OCH2)3H], respectively, and a mean particle diameter in the range of 4–8 nm could be detected via TEM. The results show that these catalysts are selective for Cdouble bond; length as m-dashO hydrogenation of citral (SUOL = 71–77% at X = 50%) even at high conversion levels. In addition, the silver carboxylate [AgO2C(CH2OCH2)3H], soluble in water as well as in polar organic solvents, offers a straightforward preparation route for nano-sized silver particles generation.

Item Type: Article
Erschienen: 2009
Creators: Steffan, Martin and Jakob, Alexander and Claus, Peter and Lang, Heinrich
Title: Silica supported silver nanoparticles from a silver(I) carboxylate: Highly active catalyst for regioselective hydrogenation
Language: English
Abstract:

The selective hydrogenation of the α,β-unsaturated aldehyde citral (3,7-dimethyl-2,6-octadienal) was investigated with nano-sized silver particles on silica (Ag/SiO2). The catalysts were synthesized from the precursors silver nitrate and silver 2-[2-(2-methoxyethoxy)ethoxy]acetate [AgO2C(CH2OCH2)3H], respectively, and a mean particle diameter in the range of 4–8 nm could be detected via TEM. The results show that these catalysts are selective for Cdouble bond; length as m-dashO hydrogenation of citral (SUOL = 71–77% at X = 50%) even at high conversion levels. In addition, the silver carboxylate [AgO2C(CH2OCH2)3H], soluble in water as well as in polar organic solvents, offers a straightforward preparation route for nano-sized silver particles generation.

Journal or Publication Title: Catalysis Communications
Volume: 10
Number: 5
Uncontrolled Keywords: Silver catalyst; Silver 2-[2-(2-methoxyethoxy)ethoxy]acetate; Citral hydrogenation; Geraniol; Nerol
Divisions: 07 Department of Chemistry
07 Department of Chemistry > Fachgebiet Technische Chemie > Technische Chemie II
07 Department of Chemistry > Fachgebiet Technische Chemie
Date Deposited: 20 Mar 2009 09:01
Official URL: http://dx.doi.org/10.1016/j.catcom.2008.10.003
Additional Information:

Available online 17. Oktober 2008

Identification Number: doi:10.1016/j.catcom.2008.10.003
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