Bron, Michael ; Teschner, Detre ; Knop-Gericke, Axel ; Scheybal, Andreas ; Steinhauer, Bernd ; Haevecker, Michael ; Födisch, Ringo ; Hönicke, Dieter ; Schlögl, Robert ; Claus, Peter (2005)
In situ-XAS and catalytic study of acrolein hydrogenation over silver catalyst: Control of intramolecular selectivity by the pressure.
In: Catalysis Communications, 6
doi: 10.1016/j.catcom.2005.02.013
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The gas phase hydrogenation of acrolein over 7.5% Ag/SiO2 has been studied in a broad pressure range from 7.5 mbar to 20 bar. Higher pressures favour the formation of allyl alcohol (selectivities up to 42%), whereas at low pressures propionaldehyde is by far the main product. In situ-XAS has been performed at 7.5 mbar in order to gain insight into the interaction of acrolein with Ag(1 1 1). Hydrogenated propionaldehyde-like surface species could be detected which orientated parallel to the surface. The observed intermediate correlates perfectly with the online catalytic data.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2005 |
| Autor(en): | Bron, Michael ; Teschner, Detre ; Knop-Gericke, Axel ; Scheybal, Andreas ; Steinhauer, Bernd ; Haevecker, Michael ; Födisch, Ringo ; Hönicke, Dieter ; Schlögl, Robert ; Claus, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | In situ-XAS and catalytic study of acrolein hydrogenation over silver catalyst: Control of intramolecular selectivity by the pressure |
| Sprache: | Englisch |
| Publikationsjahr: | 2005 |
| Verlag: | Elsevier B.V. |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Catalysis Communications |
| Jahrgang/Volume einer Zeitschrift: | 6 |
| DOI: | 10.1016/j.catcom.2005.02.013 |
| Kurzbeschreibung (Abstract): | The gas phase hydrogenation of acrolein over 7.5% Ag/SiO2 has been studied in a broad pressure range from 7.5 mbar to 20 bar. Higher pressures favour the formation of allyl alcohol (selectivities up to 42%), whereas at low pressures propionaldehyde is by far the main product. In situ-XAS has been performed at 7.5 mbar in order to gain insight into the interaction of acrolein with Ag(1 1 1). Hydrogenated propionaldehyde-like surface species could be detected which orientated parallel to the surface. The observed intermediate correlates perfectly with the online catalytic data. |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie II 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie 07 Fachbereich Chemie |
| Hinterlegungsdatum: | 20 Mär 2009 08:57 |
| Letzte Änderung: | 05 Mär 2013 09:18 |
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