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

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

Offizielle URL: http://dx.doi.org/10.1016/j.catcom.2008.10.003

Kurzbeschreibung (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.

Typ des Eintrags: Artikel
Erschienen: 2009
Autor(en): Steffan, Martin ; Jakob, Alexander ; Claus, Peter ; Lang, Heinrich
Titel: Silica supported silver nanoparticles from a silver(I) carboxylate: Highly active catalyst for regioselective hydrogenation
Sprache: Englisch
Kurzbeschreibung (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.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Catalysis Communications
Band: 10
(Heft-)Nummer: 5
Freie Schlagworte: Silver catalyst; Silver 2-[2-(2-methoxyethoxy)ethoxy]acetate; Citral hydrogenation; Geraniol; Nerol
Fachbereich(e)/-gebiet(e): Fachbereich Chemie
Fachbereich Chemie > Technische Chemie > Technische Chemie II
Fachbereich Chemie > Technische Chemie
Hinterlegungsdatum: 20 Mär 2009 09:01
Offizielle URL: http://dx.doi.org/10.1016/j.catcom.2008.10.003
Zusätzliche Informationen:

Available online 17. Oktober 2008

ID-Nummer: 10.1016/j.catcom.2008.10.003
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