• Article dans une revue

Direct grafting of ethylene sulfide onto silicic acid magadiite

Michelle Menezes de Oliveira, Marcia Maria Fernandes, Maria Gardennia Fonseca, Edson Cavalcanti da Silva Filho, Antonio Gouveia de Souza, Fabrice Gaslain, Maguy Jaber

Acidic magadiite (HMag) was directly reacted with ethylene sulfide (ES) under various controlled conditions producing an intercalated hybrid silicate (MagS). The sodium, acidic and modified magadiites were characterized using elemental analysis, thermogravimetric analysis (TGA/DTG), infrared…

Microporous and Mesoporous Materials, 2014, 196, pp.292-299. ⟨10.1016/j.micromeso.2014.05.010⟩. ⟨hal-01018650⟩

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Conversion of xylene over mordenites: an operando infrared spectroscopy study of the effect of Na+

Pascale Massiani, Olivier Marie, Frédéric Thibault-Starzyk

A series of progressively proton-exchanged sodium mordenite samples was studied by operando infrared spectroscopy during xylene conversion. This unique, powerful tool allowed us to characterize the species adsorbed to the surface during catalysis and to follow the evolution of the active sites as…

Journal of Catalysis, 2004, 230, pp.28-37. ⟨hal-00126974⟩

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Remarkable effect of postsynthesis preparation procedures on catalytic properties of Ni-loaded BEA zeolites in hydrodechlorination of 1,2-dichloroethane

A. Śrębowata, R. Baran, D. Łomot, D. Lisovytskiy, T. Onfroy, S. Dzwigaj

Ni2.0SiBEA and Ni2.0HAlBEA zeolites were prepared by two different procedures: (i) a two-step postsynthesis method that consist of (1) creation of vacant T-atom sites by dealumination of HAlBEA (Si/Al = 17) with nitric acid and then (2) impregnation of as resulting SiBEA (Si/Al > 1300) with…

Applied Catalysis B: Environmental, 2014, 147, pp.208-220. ⟨10.1016/j.apcatb.2013.08.040⟩. ⟨hal-00960654⟩

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Profiling the Active Site of a Copper Enzyme through Its Far-Infrared Fingerprint

Laure Marboutin, Hugo Petitjean, Bertrand Xerri, Nicolas Vita, François Dupeyrat, Jean-Pierre Flament, Dorothée Berthomieu, C. Berthomieu

Angewandte Chemie International Edition, 2011, 50, pp.8062-8066. ⟨10.1002/anie.201102014⟩. ⟨hal-00806802⟩

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Inhalation of uranium nanoparticles: respiratory tract deposition and translocation to secondary target organs in rats.

Fabrice Petitot, Philippe Lestaevel, Elie Tourlonias, Charline Mazzucco, Sébastien Jacquinot, Bernadette Dhieux, Olivia Delissen, Benjamin B. Tournier, Charline Gendarmes, Patricia Beaunier, Isabelle Dublineau

Uranium nanoparticles (<100 nm) can be released into the atmosphere during industrial stages of the nuclear fuel cycle and during remediation and decommissioning of nuclear facilities. Explosions and fires in nuclear reactors and the use of ammunition containing depleted uranium can also produce…

Toxicol Lett., 2013, 217, pp.217-225. ⟨10.1016/j.toxlet.2012.12.022⟩. ⟨hal-00913386⟩

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Combined effect of magnesium and amino glutamic acid on the structure of hydroxyapatite prepared by hydrothermal method

Sana Ben Moussa, Afef Mehri, Michel Gruselle, Patricia Beaunier, Guylene Costentin, Béchir Badraoui

Magnesium modified calcium hydroxyapatite of different Mg/Ca compositions have been synthesized using the hydrothermal method in the presence of glutamic acid. The resulting materials have been characterized by X-ray powder diffraction, chemical analysis, IR Spectroscopy and Transmission Electron…

Materials Chemistry and Physics, 2018, 212, pp.21-29. ⟨10.1016/j.matchemphys.2018.03.017⟩. ⟨hal-01741085⟩

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Controlling the Nanocontact Nature and the Mechanical Properties of a Silica Nanoparticle Assembly

J. Avice, C. Boscher, G. Vaudel, G. Brotons, V. Juvé, M. Edely, C. Methivier, Vitali Goussev, P. Belleville, H. Piombini, P. Ruello

Elaborating advanced nanomaterials based on the assembly of nanoparticles (NPs) is a versatile route for targeting and tuning a wide variety of properties like optical, magnetic, and electrical properties or sensing. This route usually employs a so-called soft chemistry which has the advantage of…

Journal of Physical Chemistry C, 2017, 121 (42), pp.23769-23776. ⟨10.1021/acs.jpcc.7b08404⟩. ⟨hal-02536813⟩

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Urea electro-oxidation byproducts impact on NiO/NiOOH anode performance studied by operando electrochemical impedance spectroscopy

Sophia Akkari, Vincent Vivier, Carlos Sánchez-Sánchez

With significant quantities of urea (CO(NH2)2) being worldwide produced and its presence at high concentration in urine, simultaneous treatment of urea effluents and hydrogen production by paired electrolysis represents a very attractive approach in circular economy. Urea electro-oxidation on Ni-…

Electrochimica Acta, 2024, 474, pp.143526. ⟨10.1016/j.electacta.2023.143526⟩. ⟨hal-04740774⟩

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Thermal Behavior of d -Ribose Adsorbed on Silica: Effect of Inorganic Salt Coadsorption and Significance for Prebiotic Chemistry

Mariame Akouche, Maguy Jaber, Emilie-Laure Zins, Marie-Christine Maurel, Jean-Francois Lambert, Thomas Georgelin

Understanding ribose reactivity is a crucial step in the “RNA world” scenario because this molecule is a component of all extant nucleotides that make up RNA. In solution, ribose is unstable and susceptible to thermal destruction. We examined how ribose behaves upon thermal activation when adsorbed…

Chemistry - A European Journal, 2016, 22 (44), pp.15834 - 15846. ⟨10.1002/chem.201601418⟩. ⟨hal-01564220⟩

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Magnetic Traits in CoO‐Core@CoFe 2 O 4 ‐shell Like Nanoparticles

Nancy Flores-Martinez, Margot Roemer, Sarra Gam-Derouich, Patricia Beaunier, David Habrovsky, Souad Ammar

Antiferromagnetic (AF) CoO pseudo-single crystals 125±20 nm in diameter were prepared by forced hydrolysis in polyol and used as seeds to grow a poly- and nano-crystalline (5 nm in diameter) ferrimagnetic (F) CoFe2O4 shell. Transmission electron microscopy (TEM) showed a certain epitaxy between the…

ChemNanoMat, 2019, 5 (4), pp.514-524. ⟨10.1002/cnma.201800544⟩. ⟨hal-04022347⟩