• Article dans une revue

TiO2-supported Rh nanoparticles: From green catalyst preparation to application in arene hydrogenation in neat water

Claudie Hubert, Audrey Denicourt-Nowicki, Patricia Beaunier, Alain Roucoux

TiO2-supported Rh(0) nanoparticles were prepd. by an easy method under mild conditions in neat water. They proved to be highly active catalysts for arene hydrogenation in water with TOFs up to 33 333 h-1. [on SciFinder(R)]

Green Chemistry, 2010, 12 (7), pp.1167-1170. ⟨10.1039/C004079G⟩. ⟨hal-00604723⟩

• Article dans une revue

Enhancement of the Photoinduced Oxidation Activity of a Ruthenium(II) Complex Anchored on Silica-Coated Silver Nanoparticles by Localized Surface Plasmon Resonance

Kohsuke Mori, Masayoshi Kawashima, Michel Che, Hiromi Yamashita

Angewandte Chemie International Edition, 2010, 49 (46), pp.8598-8601. ⟨10.1002/anie.201004942⟩. ⟨hal-00604784⟩

• Article dans une revue

Formation of heteropolymolybdates during the preparation of Mo and NiMo HDS catalysts supported on SBA-15: Influence on the dispersion of the active phase and on the HDS activity

Alvaro Sampieri, Stephane Pronier, Sylvette Brunet, Xavier Carrier, Catherine Louis, Juliette Blanchard, Katia Fajerwerg, Michele Breysse

Mo and Ni-Mo sulfides in SBA-15 and Al-SBA-15 catalysts were prepd. by incipient wetness co-impregnation of molybdenum and nickel precursors (followed by thermal treatment under He at 823 K) and sulfidation under 10% H2S/H2 at 673 K. Only incipient wetness impregnation of Mo on pure silica SBA-15…

Microporous and Mesoporous Materials, 2010, 130 (1-3), pp.130-141. ⟨10.1016/j.micromeso.2009.10.024⟩. ⟨hal-00604795⟩

• Article dans une revue

DFT study of the M segregation on MAu alloys (M = Ni, Pd, Pt) in presence of adsorbed oxygen O and O2

Adnene Dhouib, Hazar Guesmi

Segregation phenomena of group 10 (M = Ni, Pd, Pt) transition-metals substituted in Au (1 1 1) surface and sub-surface layers are investigated by DFT periodic calculations in presence of adsorbed atomic and molecular oxygen. In contrast with vacuum conditions, where the metal impurities M prefer to…

Chemical Physics Letters, 2011, 521, pp.98-103. ⟨10.1016/j.cplett.2011.11.050⟩. ⟨hal-00690803⟩

• Article dans une revue

Unravelling the enhanced reactivity of bulk CeO2 doped with gallium: A periodic DFT study

Paola Quaino, Olga Syzgantseva, Luca Siffert, Frederik Tielens, Christian Minot, Monica Calatayud

Doping CeO2 with gallium leads to promising materials with application in hydrogen purification processes for fuel cells. The bulk ceria-gallia is investigated by ab initio calculations. The outstanding reactivity is explained by important relaxations induced by gallium in the ceria host, having a…

Chemical Physics Letters, 2011, 519-520, pp.69-72. ⟨10.1016/j.cplett.2011.11.022⟩. ⟨hal-00690790⟩

• Article dans une revue

Influence of the Ticontent on the photocatalyticoxidation of 2-propanol and CO on TiSiBEA zeolites

Stanislaw Dzwigaj, Jean-Philippe Nogier, Michel Che, M. Saito, Takuya Hosokawa, Estelle Thouverez, Masay Matsuoka, M. Anpo

TixSiBEA (x = 1.5, 3.2 and 5.8 Ti wt.%) zeolites were prepared by a two-step postsynthesis method reported earlier (Chem. Commun. 1998, 87). Diffuse reflectance (DR) UV-vis and photoluminescence data suggest that mainly isolated tetrahedral framework Ti ions are present in Ti1.5SiBEA and Ti3.2SiBEA…

Catalysis Communications, 2012, 19, pp.17-20. ⟨10.1016/j.catcom.2011.12.010⟩. ⟨hal-00687271⟩

• Article dans une revue

Contribution to the understanding of the formation mechanism of bimodal mesoporous MCM41-type silica with large defect cavities

Claudia Bernal, Monica Mesa, Maguy Jaber, Jean-Louis Guth, Ligia Sierra

The formation mechanism of large defect cavities (∅ 11-23 nm) beside the MCM41 mesopores (∅ ∼ 2.3 nm), was studied from mixtures of sodium silicate, cetyl trimethyl ammonium bromide (CTAB) and ethyl acetate (EtAc) with the molar composition 1 SiO2; 1 Na2O; x CTAB; y EtAc: 237 H2O (with x = 0.33 or…

Microporous and Mesoporous Materials, 2011, 153, pp.217-226. ⟨10.1016/j.micromeso.2011.12.049⟩. ⟨hal-00688611⟩

• Article dans une revue

Mononuclear pseudo-tetrahedral V species of VSiBEA zeolite as the active sites of the selective oxidative dehydrogenation of propane

Karolina Chalupka, Cyril Thomas, Yannick Millot, Frédéric Averseng, Stanislaw Dzwigaj

This work reports on the investigation of the influence of the nature of the V species in the ODH of propane. For this purpose, VSiBEA catalysts, including framework and/or extra-framework V species, were synthesized via the two-step method by controlling the speciation of the V species of the…

Journal of Catalysis, 2013, 305, pp.46-55. ⟨10.1016/j.jcat.2013.04.020⟩. ⟨hal-00907796⟩

• Article dans une revue

Bimetallic Au-Pd catalysts for selective hydrogenation of butadiene: Influence of the preparation method on catalytic properties

N. El Kolli, L. Delannoy, C. Louis

Supported Au catalysts modified by the addition of small amount of Pd (Au/Pd atomic ratio (10) were prepared according to three different methods, co-deposition-precipitation with urea (DPU), deposition of colloids stabilised either by polyvinyl alcohol (PVA) or by tetrakis (hydroxypropyl)…

Journal of Catalysis, 2012, 297, pp.79-92. ⟨10.1016/j.jcat.2012.09.022⟩. ⟨hal-00809388⟩

• Article dans une revue

DFT study of the adsorption of microsolvated glycine on a hydrophilic amorphous silica surface

Dominique Costa, Asma Tougerti, Frederik Tielens, Christel Gervais, Lorenzo Stievano, Jean-François Lambert

Physical Chemistry Chemical Physics, 2008, 10 (42), pp.6360-6368. ⟨10.1039/B806501B⟩. ⟨hal-00799212⟩