Intrinsic potential of alumina-supported CoMo catalysts in HDS: Comparison between γc, γT, and δ-alumina

Autor: Dorothée Laurenti, Anne-Agathe Quoineaud, Michel Vrinat, L. Massin, Karin Marchand, Elodie Devers, Cristèle Legens, Charbel Roukoss, Laurent Lemaitre, Bo Phung-Ngoc

Publikováno v: Journal of Catalysis. 297:165-175

MoS2 catalysts were firstly prepared over three different alumina supports gamma c-Al2O3, gamma T-Al2O3, and delta-Al2O3 with the same Mo loading per nm(2). Then, using various deposition methods and different Co-precursors as Co(NO3)(2), Co(acac)(2)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b614b4665ec3b691e4fb158e78053906
https://doi.org/10.1016/j.jcat.2012.10.006

Solid-State NMR of a Paramagnetic DIAD-FeII Catalyst: Sensitivity, Resolution Enhancement, and Structure-Based Assignments

Autor: Charbel Roukoss, Christophe Copéret, Lyndon Emsley, Eberhardt Herdtweck, Eric Oldfield, Emile Kuntz, Gwendal Kervern, Jean Marie Basset, Yong Zhang, Guido Pintacuda, Anne Lesage, Sylvian Cadars

Publikováno v: Journal of the American Chemical Society
Journal of the American Chemical Society, 2006, 128 (41), pp.13545-13552. ⟨10.1021/ja063510n⟩
Journal of the American Chemical Society, American Chemical Society, 2006, 128 (41), pp.13545-13552. ⟨10.1021/ja063510n⟩

A general protocol for the structural characterization of paramagnetic molecular solids using solid-state NMR is provided and illustrated by the characterization of a high-spin Fe(II) catalyst precursor. We show how good NMR performance can be obtain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b51afe9f21eba2190e8cc9cd5c0a8631
https://doi.org/10.1021/ja063510n

From Si nanowire to SiC nanotube

Autor: Gabriel Ferro, Hervé Roussel, Charbel Roukoss, Didier Chaussende, Edwige Bano, Arnaud Mantoux, Thierry Baron, Geoffroy Auvert, F. Dhalluin, Bernard Pelissier, Eirini Sarigiannidou, Laurence Latu-Romain, Nikoletta Jegenyes, Maelig Ollivier, Bassem Salem, Odette Chaix-Pluchery

Publikováno v: Journal of Nanoparticle Research
Journal of Nanoparticle Research, 2011, 13 (10), pp.5425-5433. ⟨10.1007/s11051-011-0530-9⟩
Journal of Nanoparticle Research, Springer Verlag, 2011, 13 (10), pp.5425-5433. ⟨10.1007/s11051-011-0530-9⟩

International audience; Si nanowires (NWs), with diameters of about 800 nm and lengths of about 10 lm, previously synthesized by the VLS method with gold catalyst, were carburized at 1,100 C under methane for conversion into SiC nanostructures. These

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8de9e1628ab21cb05abcda6ffc5721d0
https://hal.science/hal-00629242

Quantitative depth profiling of ultrathin high-k stacks with full spectrum time of flight–secondary ion mass spectrometry

Autor: Kenji Kimura, Rachid Boujamaa, Matthieu Py, Narciso Gambacorti, Charbel Roukoss, Kaoru Nakajima, Michael Gros-Jean, Bernard Pelissier, Jean-Paul Barnes

Publikováno v: Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena. 29:032208

Elemental concentration depth profiles of high-k material stacks for 32 nm node devices and below were acquired by high resolution backscattering spectrometry (HRBS), parallel angle resolved-x-ray photoelectron spectroscopy (pAR-XPS), and time of fli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1d727de808d1cc193638a79a152b573
https://doi.org/10.1116/1.3589806

Access to well-defined isolated Fe(ii) centers on silica and their use in oxidation.

Autor: Charbel Roukoss, Steven Fiddy, Aimery de Mallmann, Nuria Rendón, Jean-Marie Basset, Emile Kuntz, Christophe Copéret

Publikováno v: Dalton Transactions: An International Journal of Inorganic Chemistry; Nov2007, Vol. 2007 Issue 47, p5546-5548, 3p