Influence of the support composition and acidity on the catalytic properties of mesoporous SBA-15, Al-SBA-15, and Al2O3-supported Pt catalysts for cinnamaldehyde hydrogenation

Graphical abstract In liquid phase, the hydrogenation of the cinnamaldehyde C[double bond; length as m-dash]C bond is favored on Pt/SBA-15 and Pt/Al-SBA-15, but reaction rates are significantly higher on the latter catalyst. In contrast, on mesoporous Pt/Al2 O3 , C[double bond; length as m-dash]C an...

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Veröffentlicht in:	Journal of catalysis 2011-08, Vol.282 (1), p.228-236
Hauptverfasser:	HANDJANI, Soraya, MARCEAUA, Eric, BLANCHARD, Juliette, KRAFFT, Jean-Marc, CHE, Michel, MÄKI-ARVELA, Paivi, KUMAR, Narendra, WÄRNA, Johan, MURZIN, Dmitry Yu
Format:	Artikel
Sprache:	eng
Schlagworte:	Catalysis Catalysts Chemical bonds Chemical Sciences Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Hydrogenation Nanoparticles Physical and chemical studies. Granulometry. Electrokinetic phenomena Porous materials Surface physical chemistry Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Zusammenfassung:	Graphical abstract In liquid phase, the hydrogenation of the cinnamaldehyde C[double bond; length as m-dash]C bond is favored on Pt/SBA-15 and Pt/Al-SBA-15, but reaction rates are significantly higher on the latter catalyst. In contrast, on mesoporous Pt/Al2 O3 , C[double bond; length as m-dash]C and C[double bond; length as m-dash]O hydrogenations take place at the same rate. When metal particles are small enough (40%). Dramatic support effects on the particles electron density or morphology are assumed. Three Pt catalysts exhibiting similar metal particles size (
ISSN:	0021-9517 1090-2694
DOI:	10.1016/j.jcat.2011.06.017