Bienholz, Arne ; Blume, Raoul ; Knop-Gericke, Axel ; Giergsdies, Frank ; Behrens, Malte ; Claus, Peter (2011)
Prevention of Catalyst Deactivation in the Hydrogenolysis of Glycerol by Ga₂O₃-Modified Copper/Zinc Oxide Catalysts.
In: Journal of Physical Chemistry C, 115 (4)
doi: 10.1021/jp104925k
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Copper/zinc oxide catalysts prepared by coprecipitation were proved to be highly active and selective in the hydrogenolysis of glycerol. However, they suffer from strong deactivation in the course of reaction. Modifying the CuO/ZnO catalyst with Ga2O₃ extremely enhances the stability of the catalyst as even after four consecutive experiments over a Cu/ZnO/Ga₂O₃ catalyst no deactivation is observed. The catalysts were characterized by temperature-programmed reduction, powder X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy coupled with energy-dispersive X-ray analysis, and inductively coupled plasma optical emission spectrometry. As the Cu/ZnO/Ga₂O₃ catalyst is stable even under harsh reaction conditions of 220 °C and in the presence of water, a space-time-yield as high as 22.1 gpropylene glycol/(gCu h) can be obtained.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Bienholz, Arne ; Blume, Raoul ; Knop-Gericke, Axel ; Giergsdies, Frank ; Behrens, Malte ; Claus, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Prevention of Catalyst Deactivation in the Hydrogenolysis of Glycerol by Ga₂O₃-Modified Copper/Zinc Oxide Catalysts |
| Sprache: | Englisch |
| Publikationsjahr: | 3 Februar 2011 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physical Chemistry C |
| Jahrgang/Volume einer Zeitschrift: | 115 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1021/jp104925k |
| Kurzbeschreibung (Abstract): | Copper/zinc oxide catalysts prepared by coprecipitation were proved to be highly active and selective in the hydrogenolysis of glycerol. However, they suffer from strong deactivation in the course of reaction. Modifying the CuO/ZnO catalyst with Ga2O₃ extremely enhances the stability of the catalyst as even after four consecutive experiments over a Cu/ZnO/Ga₂O₃ catalyst no deactivation is observed. The catalysts were characterized by temperature-programmed reduction, powder X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy coupled with energy-dispersive X-ray analysis, and inductively coupled plasma optical emission spectrometry. As the Cu/ZnO/Ga₂O₃ catalyst is stable even under harsh reaction conditions of 220 °C and in the presence of water, a space-time-yield as high as 22.1 gpropylene glycol/(gCu h) can be obtained. |
| 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: | 18 Okt 2010 13:48 |
| Letzte Änderung: | 05 Mär 2013 09:40 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum