Steffan, Martin ; Jakob, Alexander ; Claus, Peter ; Lang, Heinrich (2009)
Silica supported silver nanoparticles from a silver(I) carboxylate: Highly active catalyst for regioselective hydrogenation.
In: Catalysis Communications, 10 (5)
doi: 10.1016/j.catcom.2008.10.003
Artikel, Bibliographie
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 |
| Art des Eintrags: | Bibliographie |
| Titel: | Silica supported silver nanoparticles from a silver(I) carboxylate: Highly active catalyst for regioselective hydrogenation |
| Sprache: | Englisch |
| Publikationsjahr: | 25 Januar 2009 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Catalysis Communications |
| Jahrgang/Volume einer Zeitschrift: | 10 |
| (Heft-)Nummer: | 5 |
| DOI: | 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. |
| Freie Schlagworte: | Silver catalyst; Silver 2-[2-(2-methoxyethoxy)ethoxy]acetate; Citral hydrogenation; Geraniol; Nerol |
| Zusätzliche Informationen: | Available online 17. Oktober 2008 |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie II 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie |
| Hinterlegungsdatum: | 20 Mär 2009 09:01 |
| Letzte Änderung: | 05 Mär 2013 09:18 |
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