Bron, Michael ; Teschner, Detre ; Wild, Ute ; Knop-Gericke, Axel ; Volckmar, Claudia ; Wootsch, Attila ; Schlögl, Robert ; Claus, Peter (2008)
Oxygen-induced activation of silica supported silver in acrolein hydrogenation.
In: Applied Catalysis A: General, 341 (1-2)
doi: 10.1016/j.apcata.2008.02.033
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The effect of oxygen pre-treatment of Ag/SiO₂ catalysts used in the acrolein hydrogenation has been investigated from sub-atmospheric (266 mbar) to 10 bar reaction pressure. The pre-treatment has a profound influence on the overall hydrogenation activity, inasmuch the activity increased two- to three-fold. Oxygen pre-treatment also enhanced the selectivity towards the desired allyl alcohol. The beneficial effect of oxygen pre-treatment is ascribed to the formation of electronically modified Ag and/or morphology changes of the nanoparticles as no modification in particle size or dispersion was found.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2008 |
| Autor(en): | Bron, Michael ; Teschner, Detre ; Wild, Ute ; Knop-Gericke, Axel ; Volckmar, Claudia ; Wootsch, Attila ; Schlögl, Robert ; Claus, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Oxygen-induced activation of silica supported silver in acrolein hydrogenation |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Juni 2008 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Catalysis A: General |
| Jahrgang/Volume einer Zeitschrift: | 341 |
| (Heft-)Nummer: | 1-2 |
| DOI: | 10.1016/j.apcata.2008.02.033 |
| Kurzbeschreibung (Abstract): | The effect of oxygen pre-treatment of Ag/SiO₂ catalysts used in the acrolein hydrogenation has been investigated from sub-atmospheric (266 mbar) to 10 bar reaction pressure. The pre-treatment has a profound influence on the overall hydrogenation activity, inasmuch the activity increased two- to three-fold. Oxygen pre-treatment also enhanced the selectivity towards the desired allyl alcohol. The beneficial effect of oxygen pre-treatment is ascribed to the formation of electronically modified Ag and/or morphology changes of the nanoparticles as no modification in particle size or dispersion was found. |
| Freie Schlagworte: | Acrolein; Silver; Selective hydrogenation; Electropositive adsorption sites |
| Zusätzliche Informationen: | Available online 23. Februar 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 08:59 |
| Letzte Änderung: | 05 Mär 2013 09:18 |
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