• Article dans une revue

Investigation of the role of stabilizingagentmolecules in the heterogeneousnucleation of rhodium(0) nanoparticles onto Al-SBA-15 supports

Rita Sassine, E. Bilé-Guyonnet, Thomas Onfroy, Audrey Denicourt-Nowicki, Alain Roucoux, Franck Launay

Interactions of stabilizingagentmolecules (HEA16Cl) with Rh(0) particles and mesoporous aluminosilic supports were studied in rhodium(0) catalysts obtained by heterogeneousnucleation. HEA16Cl/Rh(0) proximity was indirectly demonstrated by monitoring the CO coverage of metal surface using FTIR…

Studies in Surface Science and Catalysis, 2010, 175, pp.145-152. ⟨10.1016/S0167-2991(10)75018-7⟩. ⟨hal-00759090⟩

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Total Oxidation of Methane on Oxide and Mixed Oxide Ceria-Containing Catalysts

Marius Stoian, Vincent Rogé, Liliana Lazar, Thomas Maurer, Jacques C Védrine, Ioan-Cezar Marcu, Ioana Fechete

Methane, discovered in 1766 by Alessandro Volta, is an attractive energy source because of its high heat of combustion per mole of carbon dioxide. However, methane is the most abundant hydrocarbon in the atmosphere and is an important greenhouse gas, with a 21-fold greater relative radiative…

Catalysts, 2021, 11 (4), pp.427. ⟨10.3390/catal11040427⟩. ⟨hal-03236104⟩

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Experimental and theoretical evidences of the influence of hydrogen bonding on the catalytic activity of a series of 2-hydroxy substituted quaternary ammonium salts in the styrene oxide/CO2 coupling reaction

Catarina Carvalho Rocha, Thomas Onfroy, Julien Pilmé, Audrey Denicourt-Nowicki, Alain Roucoux, Franck Launay

Among industrial applications of CO2, the formation of cyclic carbonates from epoxides offers relevant chemical potentialities. Here, various N,N-dimethyl-N-cetyl-N-(2-hydroxyethyl)ammonium salts (HEA16X) associated with different counter-anions (X−) have been investigated as catalysts of the…

Journal of Catalysis, 2016, 333, pp.29--39. ⟨10.1016/j.jcat.2015.10.014⟩. ⟨hal-01231145⟩

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Comparing Al-SBA-15 Support and Pt/Al-SBA-15 Catalyst: Changes in Al Speciation and Acidic Properties Induced by the Introduction of Pt via Aqueous Medium

Soraya Handjani, Stanislaw Dzwigaj, Juliette Blanchard, E. Marceau, Jean-Marc Krafft, Michel Che

Topics in Catalysis, 2009, 52 (4), pp.334-343. ⟨10.1007/s11244-008-9177-x⟩. ⟨hal-03032175⟩

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Scabiose de l'appareil unguéal chez un nourrisson, Scabies of the nail unit in an infant

A Finon, Guillaume Desoubeaux, M. Nadal, G Georgescou, R. Baran, A. Maruani

Introduction.-La prise en charge de la gale du nourrisson n'est pas codifiée et les récidives sont fréquentes à cet âge. Nous rapportons un cas exceptionnel d'atteinte sous-unguéale et d'onychopathie des pieds, séquellaires d'une gale commune chez un nourrisson. Observation.-Un…

Annales de Dermatologie et de Vénéréologie, 2016, ⟨10.1016/j.annder.2016.09.043⟩. ⟨hal-02443849⟩

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Bimetallic Phosphide (Ni,Cu) 2 P Nanoparticles by Inward Phosphorus Migration and Outward Copper Migration

Anh-Minh Nguyen, Mounib Bahri, Sébastien Dreyfuss, Simona Moldovan, Antoine Miche, Christophe Méthivier, Ovidiu Ersen, Nicolas Mézailles, Sophie Carenco

Bimetallic phosphide nanoparticles are drawing a great interest as a family of nanomaterials. Controlling their fine features such as surface composition, core crystal structure and overall composition is a key to further application. Copper and nickel are particularly interesting first-raw metals…

Chemistry of Materials, 2019, 31 (16), pp.6124-6134. ⟨10.1021/acs.chemmater.9b01505⟩. ⟨hal-02273119⟩

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Control of the hierarchical self-assembly of polyoxometalate-based metallomacrocycles by redox trigger and solvent composition

Madeleine Piot, Benjamin Abécassis, Dalil Brouri, Claire Troufflard, Anna Proust, Guillaume Izzet

Proceedings of the National Academy of Sciences of the United States of America, 2018, 115 (36), pp.8895 - 8900. ⟨10.1073/pnas.1808445115⟩. ⟨hal-01889517⟩

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Hierarchical Self-Assembly of Polyoxometalate-Based Organo Palladium(II) Metallomacrocycles via Electrostatic Interactions

Raphaël Salles, Benjamin Abécassis, Etienne Derat, Dalil Brouri, Aurélie Bernard, Qichun Zhang, Anna Proust, Christophe Desmarets, Guillaume Izzet

The design and synthesis of a supramolecular square composed of polyoxometalate-based hybrid donors and ethylenediamine palladium(II) nodes are reported. The structure of the metallomacrocycle scaffold was inferred by diffusion NMR, small-angle X-ray scattering (SAXS), and molecular modeling. The…

Inorganic Chemistry, 2020, 59 (4), pp.2458--2463. ⟨10.1021/acs.inorgchem.9b03333⟩. ⟨hal-02887768⟩

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Dispersion and hydrogenation activity of surfactant-stabilized Rh(0) nanoparticles prepared on different mesoporous supports

Maya Boutros, Guillaume Shirley, Thomas Onfroy, Franck Launay

Supported Rh(0) colloidal particles were prepared by the reduction of Rh(III) ions by sodium borohydride in the presence of N-N-dimethyl-N-cetyl-N-(2-hydroxyethyl) ammonium chloride (HEA16Cl), usually used as a stabilizing agent in solution. Tested supports were Na-Al-SBA-15, SBA-15 and CMK-3. In…

Applied Catalysis A : General, 2011, 394 (1-2), pp.158-165. ⟨10.1016/j.apcata.2010.12.035⟩. ⟨hal-00602935⟩

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Incorporation of Nb(V) into BEA zeolite investigated by XRD, NMR, IR, DR UV-vis, and XPS

Stanislaw Dzwigaj, Yannick Millot, Christophe Methivier, Michel Che

Nb(x)SiBEA (x = 1.0, 1.5 Nb wt%) zeolites are prepared by a two-step postsynthesis method involving first the creation of vacant T-atom sites associated with silanol groups by dealumination of BEA zeolite by nitric acid solution and then by impregnation of the resulting SiBEA zeolite with the…

Microporous and Mesoporous Materials, 2010, 130 (1-3), pp.162-166. ⟨10.1016/j.micromeso.2009.10.027⟩. ⟨hal-00604714⟩