A MAS NMR and DRIFT study of the Ga species in Ga/H-ZSM5 catalysts and their effect on propane ammoxidation

Autor: Sharifah Bee Abd Hamid, Jacques C. Vedrine, Prem Pal, Juliette Quartararo, Eric G. Derouane, Bruce G. Anderson, Pieter C. M. M. Magusin

Publikováno v: Canadian Journal of Chemistry, 83(6-7), 574-580. National Research Council of Canada

71Ga, 27Al, and 29Si MAS NMR and DRIFT spectroscopies were used to characterize the state of gallium in Ga/H-ZSM5 catalysts tested for their ability to catalyse the ammoxidation of propane. Ga species were observed in two different possible environme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f46bdbe23c7b3bdc4df5560c0935577
https://doi.org/10.1139/v05-073

Fries rearrangement of aryl esters catalysed by heteropoly acid

Autor: Ivan V. Kozhevnikov, Juliette Quartararo, Elena F. Kozhevnikova

Publikováno v: Applied Catalysis A: General. 245:69-78

Heteropoly acids (HPAs) are active catalysts for the Fries rearrangement of aryl esters (phenyl acetate, phenyl benzoate, and p-tolyl acetate) to yield the acylated phenols and esters together with phenols in homogeneous or heterogeneous liquid-phase

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0311edddb8f001c60c7620297cdf1f8
https://doi.org/10.1016/s0926-860x(02)00618-x

Étude par RMN à l'état solide de catalyseurs oxydes du type Mo-P-Al

Autor: Jean-Paul Amoureux, Michel Guelton, Monique Rigole, Jean Grimblot, Juliette Quartararo

Publikováno v: Journal de Chimie Physique et de Physico-Chimie Biologique. 96:1536-1542

La RMN du solide et notamment la methode « MQMAS » de 27 Al est utilisee pour caracteriser en detail les catalyseurs d'hydrotraitement du type Mo-P-Al sous forme oxyde. Cette application montre que la RMN est un outil efficace pour determiner la st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5c78ce3cb8b44c347444218f8d1c21b
https://doi.org/10.1051/jcp:1999230

Sol–gel synthesis of alumina modified by phosphorus: a solid state NMR characterization study

Autor: Monique Rigole, Michel Guelton, Christian Fernandez, Jean-Paul Amoureux, Jean Grimblot, Juliette Quartararo

Publikováno v: Journal of Materials Chemistry. 9:2637-2646

A sol–gel method using aluminium tri(sec-butoxide) and orthophosphoric acid, H 3 PO 4 , as the Al and P sources respectively, 2-butanol as the solvent and 1,3-butanediol as the chelating agent has been extensively used to prepare P-alumina catalyti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c7fc1cb46083ecc99d5db3205babfca
https://doi.org/10.1039/a903889b

Cyclodextrin silica-based materials: advanced characterizations and study of their complexing behavior by diffuse reflectance UV-Vis spectroscopy

Autor: Sébastien Abramson, Eric Monflier, Yolande Barbaux, Anne Ponchel, Juliette Quartararo, D. Bormann

Publikováno v: Microporous and Mesoporous Materials
Microporous and Mesoporous Materials, 2004, 75 (3), pp.261. ⟨10.1016/j.micromeso.2004.07.005⟩
Microporous and Mesoporous Materials, Elsevier, 2004, 75 (3), pp.261. ⟨10.1016/j.micromeso.2004.07.005⟩

International audience; The modification of a silica gel by beta-cyclodextrin has been performed in a two-step procedure, by grafting the epoxy functions on the silica gel following by the reaction with the alcoholate of beta-cyclodextrin. A detailed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4193ca2c073212e3da8385882c66620b
https://hal.science/hal-00169493