Preparation and catalytic activity of nanostructured Pd catalysts supported on hydrogenotitanate nanotubes |
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| Authors: | Khaled Jabou Hafedh Kochkar Gilles Berhault Abdelhamid Ghorbel |
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| Affiliation: | 1.Laboratoire de Chimie des Matériaux et Catalyse,Faculté des Sciences de Tunis,ElManar, Tunis,Tunisie;2.Institut National de Recherche et d’Analyse Physico-Chimique,P?le Technologique,Sidi Thabet, Ariana,Tunisie;3.Institut de Recherches sur la Catalyse et l’Environnement de Lyon,UMR 5256 CNRS Université de Lyon,Villeurbanne,France |
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| Abstract: | Nanostructured palladium particles (nanorods, icosahedra, cubes) were synthesized in aqueous solution using a seeding-mediated approach with a structure-directing agent. These nanostructured Pd particles were then impregnated onto hydrogenotitanate nanotubes using two different impregnation procedures. The as-prepared catalysts were then tested in the selective hydrogenation of cinnamaldehyde at 323 K under 10 bars of H2. The selectivity is influenced by the morphology of the Pd nanostructured particles with a higher selectivity into saturated alcohols when the proportion of (111) Pd sites increases. |
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