| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Especel, Catherine
University of Poitiers
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2015Hydrocarbon fuel synthesis from sorbitol over bifunctional catalysts: Association of tungstated titania with platinum, palladium or iridiumcitations
- 2015Selective ring opening of methylcyclohexane and decalin over Rh-Pd supported catalysts: Effect of the preparation methodcitations
- 2012Selective hydrogenation of citral to unsaturated alcohols over mesoporous Pt/Ti-Al2O3 catalysts. Effect of the reduction temperature and of the Ge additioncitations
- 2012Citral hydrogenation on high surface area mesoporous TiO2-SiO2 supported Pt nanocomposites: Effect of titanium loading and reduction temperature on the catalytic performancescitations
- 2011The relationship between the structural properties of bimetallic Pd-Sn/SiO2 catalysts and their performance for selective citral hydrogenation citations
- 2011Catalytic performances of large pore Ti-SBA15 supported Pt nanocomposites for the citral hydrogenation reaction citations
- 2010Control of titania nanodomain size as a route to modulate SMSI effect in Pt/TiO2 catalystscitations
- 2006Bimetallic Rh-Ge and Pt-Ge catalysts supported on TiO2 for citral hydrogenation I. Preparation and characterization of the catalysts citations
Places of action
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article
Catalytic performances of large pore Ti-SBA15 supported Pt nanocomposites for the citral hydrogenation reaction
Abstract
Pt/x% Ti-SBA15 catalysts (x corresponding to the wt.% TiO2 loading in the Ti-SiO2 composite, in the range 25-60%) were synthesized by titanium precursor grafting in preformed mesoporous silica. Materials were characterized by several techniques, including elemental analysis, XRD, TEM and N-2-sorption isotherms to achieve structural and textural properties description. Different pore sizes were obtained for the SBA15 materials, by using or not hexane as swelling agent. The catalytic performances of these original materials were evaluated for the selective hydrogenation of citral (alpha, beta-unsaturated aldehyde), and compared with those of Pt/SBA and Pt/TiO2 P25 reference catalysts. Pt/x% Ti-SBA15 catalysts present high specific surface, with TiO2 nanoparticles and Pt-0 clusters located inside the hexagonal mesopore structure of silica. During citral hydrogenation, the selectivity towards unsaturated alcohols (nerol and geraniol) varies as a function of the support nature as follows: Pt/x% Ti-SBA15 > Pt/TiO2 P25 >> Pt/SBA. The results are discussed in term of variable metal-support interaction (SMSI) generated by the partial reduction of TiO2 species, this SMSI effect being reported more important over anatase TiO2 nanoparticles dispersed inside the mesostructure than over large crystals encountered in the classical P25 support.