Platinum-Promoted Ga/Al sub(2)O sub(3) as Highly Active, Selective, and Stable Catalyst for the Dehydrogenation of Propane

A novel catalyst material for the selective dehydrogenation of propane is presented. The catalyst consists of 1000ppm Pt, 3wt% Ga, and 0.25wt% K supported on alumina. We observed a synergy between Ga and Pt, resulting in a highly active and stable catalyst. Additionally, we propose a bifunctional ac...

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Veröffentlicht in:Angewandte Chemie International Edition 2014-08, Vol.53 (35), p.9251-9256
Hauptverfasser: Sattler, Jesper JHB, Gonzalez-Jimenez, Ines D, Luo, Lin, Stears, Brien A, Malek, Andrzej, Barton, David G, Kilos, Beata A, Kaminsky, Mark P, Verhoeven, Tiny WGM, Koers, Eline J, Baldus, Marc, Weckhuysen, Bert M
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Sprache:eng
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Zusammenfassung:A novel catalyst material for the selective dehydrogenation of propane is presented. The catalyst consists of 1000ppm Pt, 3wt% Ga, and 0.25wt% K supported on alumina. We observed a synergy between Ga and Pt, resulting in a highly active and stable catalyst. Additionally, we propose a bifunctional active phase, in which coordinately unsaturated Ga super(3+) species are the active species and where Pt functions as a promoter. Alkane activation: The selective dehydrogenation of propane is achieved with a catalyst material consisting of 1000ppm Pt, 3wt% Ga, and 0.25wt% K supported on alumina. The synergy between Ga and Pt results in a highly active and stable catalyst. A bifunctional active phase is proposed, in which coordinately unsaturated Ga super(3+) species are the active species and Pt functions as promoter.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201404460