Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Blaise Didillon"'
Autor:
Jean-Marie Basset, R. Petroff Saint-Arroman, A. De Mallmann, Blaise Didillon, Frédéric Lefebvre
Publikováno v:
Applied Catalysis A: General. 337:78-85
Silica-supported alkoxo-tantalum complexes were used in the deperoxidation of cyclohexyl hydroperoxide into cyclohexanol and cyclohexanone. The effects of the number of bonds with the silica support and of the nature of the alkoxo ligands were studie
Publikováno v:
Oil & Gas Science and Technology - Revue de l'IFP. 61:405-413
Pt-M/Al2 O3 bimetallic catalysts with M = Ge , Au or Pd were prepared and characterised by H2 -O2 volumetric titration and IR(CO) spectroscopy. The effects of the second metal on the sulfur resistance of platinum were investigated by the hydrogenatio
Publikováno v:
Applied Catalysis A: General. 290:181-190
Silica-supported ( SiO) 3 MOR (M=Ti, Zr, Hf; R=H, t Bu) organometallic complexes of group 4, uniform in composition and in distribution, were synthesized via a molecular engineering approach of the construction of active sites. These catalysts were f
Autor:
Josette Olivier-Fourcade, Stephan Verdier, Jean-Claude Jumas, Denis Uzio, S. Morin, Blaise Didillon
Publikováno v:
Journal of Catalysis. 218:280-287
Colloidal oxide synthesis is a new technique for the preparation of bimetallic supported particles which provides the opportunity to control particle size distribution and interaction between both metals. It consists in synthesizing in aqueous medium
Publikováno v:
Catalysis Today. 65:201-208
Hydrogenation activity in presence of sulfur has been studied for bimetallic Pt–Ge/Al2O3 and Pt–Pd/Al2O3 systems. It has been shown that addition of germanium to platinum decreases the rate of aromatic hydrogenation whereas the palladium–platin
Publikováno v:
Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry. 3:423-427
L'elimination des composes de l'arsenic des fluides petroliers est un domaine d'investigation en plein essor, du fait de l'accroissement du traitement de condensat de gaz naturel moins cher et plus disponible que le naphta. Cependant, ces charges son
Publikováno v:
Journal of Catalysis. 185:462-478
The compositions of Pt complexes adsorbed on γ-alumina from acidic H2PtCl6 solutions and their transformations upon drying, rewetting, and calcination were studied using 195Pt NMR, UV–Vis diffuse reflectance, EXAFS, and Raman spectroscopy. Two aci
Publikováno v:
Journal of the American Chemical Society. 121:545-556
To understand the mechanism of Pt deposition during the synthesis of supported catalysts, liquid-phase 195Pt NMR spectroscopy was applied first to study the speciation of platinum complexes in aqueous solutions of H2PtCl6 as a function of pH and time
Etude in situ par EXAFS de la réaction de reformage sur les systèmes Pt/Al2O3 et PtRe/Al2O3 sulfurés
Publikováno v:
Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1996, 06 (C4), pp.C4-493-C4-500. ⟨10.1051/jp4:1996447⟩
Journal de Physique IV Proceedings, EDP Sciences, 1996, 06 (C4), pp.C4-493-C4-500. ⟨10.1051/jp4:1996447⟩
La technique EXAFS a ete utilisee pour suivre in situ dans les conditions de reformage (T=500°C, P(H 2 ) = 8 bars, H 2 : n-C 7 H 16 = 1:1 et T=300°C, P(H 2 ) = 3 bars H 2 : n-C 7 H 16 = 1:1), l'evolution de la structure des deux catalyseurs Pt/Al 2
Publikováno v:
Journal of Catalysis. 159:178-188
Pt–Sn/Al 2 O 3 bimetallic catalysts have been prepared using organometallic precursors and characterized. Two modelsdepending on average platinum particle size are proposed inorder to describe these solids. The catalyst obtained from ahighly disper