Demirel, Séval ; Lehnert, Kerstin ; Lucas, Martin ; Claus, Peter (2007)
Use of renewables for the production of chemicals: Glycerol oxidation over carbon supported gold catalysts.
In: Applied Catalysis B: Environmental, 70 (1-4)
doi: 10.1016/j.apcatb.2005.11.036
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
As a renewable feedstock and due to its high functionality glycerol is an attractive reactant for the production of a large number of valuable compounds. We report on an environmentally friendly alternative to produce chemicals from the glycerol oxidation, which are currently produced either by stoichiometric oxidation processes or by enzymatic routes. We investigate the heterogeneously catalyzed liquid-phase oxidation of glycerol with carbon supported gold catalysts. The prepared nanosized gold catalysts are highly active, so that the reaction could be performed under atmospheric pressure. The influence of the preparation method of the catalysts has been investigated. Moreover, the support effect on the catalytic process has been studied and discussed in terms of pore structure of the investigated carbon materials. The promotor effect of platinum on Au/C catalysts was examined and it could be shown that the presence of Pt increases not only the catalyst activity but also the selectivity. By promoting the gold catalysts with platinum the selectivity to dihydroxyacetone could be increased from 26% (Au/C) to 36% (Au–Pt/C).
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Demirel, Séval ; Lehnert, Kerstin ; Lucas, Martin ; Claus, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Use of renewables for the production of chemicals: Glycerol oxidation over carbon supported gold catalysts |
| Sprache: | Englisch |
| Publikationsjahr: | 31 Januar 2007 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Catalysis B: Environmental |
| Jahrgang/Volume einer Zeitschrift: | 70 |
| (Heft-)Nummer: | 1-4 |
| DOI: | 10.1016/j.apcatb.2005.11.036 |
| Kurzbeschreibung (Abstract): | As a renewable feedstock and due to its high functionality glycerol is an attractive reactant for the production of a large number of valuable compounds. We report on an environmentally friendly alternative to produce chemicals from the glycerol oxidation, which are currently produced either by stoichiometric oxidation processes or by enzymatic routes. We investigate the heterogeneously catalyzed liquid-phase oxidation of glycerol with carbon supported gold catalysts. The prepared nanosized gold catalysts are highly active, so that the reaction could be performed under atmospheric pressure. The influence of the preparation method of the catalysts has been investigated. Moreover, the support effect on the catalytic process has been studied and discussed in terms of pore structure of the investigated carbon materials. The promotor effect of platinum on Au/C catalysts was examined and it could be shown that the presence of Pt increases not only the catalyst activity but also the selectivity. By promoting the gold catalysts with platinum the selectivity to dihydroxyacetone could be increased from 26% (Au/C) to 36% (Au–Pt/C). |
| Freie Schlagworte: | Glycerol; Liquid-phase oxidation; Gold catalysts; Carbon support; Support effect; Platinum; Promotor effect; Dihydroxyacetone |
| Zusätzliche Informationen: | Available online 22. Juni 2006 |
| 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 09:02 |
| Letzte Änderung: | 05 Mär 2013 09:18 |
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