• Article dans une revue

Incorporation of vanadium into the framework of hydroxyapatites: importance of the vanadium content and pH conditions during the precipitation step

Sarah Petit, Thrimurthulu Gode, Cyril Thomas, Stanislaw Dzwigaj, Yannick Millot, Dalil Brouri, Jean-Marc Krafft, Gwenaelle Rousse, Christel Laberty-Robert, Guylène Costentin

Even though vanadium-modified hydroxyapatite (V-HAp) samples are very promising systems for oxidative dehydrogenation of propane, the incorporation of vanadium into the hydroxyapatite framework was reported to be limited and to lead to over-stoichiometric compounds. Here, the synthesis of a Ca10(…

Physical Chemistry Chemical Physics, 2017, 19 (14), pp.9630 - 9640. ⟨10.1039/C6CP08782E⟩. ⟨hal-01522440⟩

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Copper Zinc Aluminate Synthesized by Sol-Gel Method with Polyacrylic Acid as Catalysts for Glycerol Hydrogenolysis

L. Omar, T. Onfroy, S. Daniele, N. Perret

This study describes the use of novel Cu/ZnO/ZnAl2O4/PAAH (PAAH=polyacrylic acid) hybrid nanomaterials for glycerol hydrogenolysis. Their elaboration by sol-gel process either in one step or in two steps allowed to modulate their structural properties in terms of specific surface area, Lewis…

ChemCatChem, 2023, 15 (4), ⟨10.1002/cctc.202201297⟩. ⟨hal-03999405⟩

• Article dans une revue

Evidence for an H2 promoting effect in the selective catalytic reduction of NO(x) by propene on Au/Al2O3.

Tesnim Chaieb, Laurent Delannoy, Sandra Casale, Catherine Louis, Cyril Thomas

This work provides the first experimental evidence of an H2 effect in C3H6-SCR over an Au/Al2O3 catalyst. This effect could only be observed when the number of Au catalytic sites was decreased. The N2 turnover rate estimated for the first time for the Au catalytic sites for H2–C3H6-SCR was found to…

Bulgarian Chemical Communications, 2015, 51 (4), pp.796-9. ⟨10.1039/c4cc07349e⟩. ⟨hal-01121184⟩

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Selectivities in Adsorption and Peptidic Condensation in the (Arginine and Glutamic Acid)/Montmorillonite Clay System

Maguy Jaber, Thomas Georgelin, Houssein Bazzi, France Costa-Torro, Jean-François Lambert, Gérard Bolbach, Gilles Clodic

The present study examines the selective adsorption and polymerization of two amino acids, glutamic acid (Glu) and arginine (Arg), on a cationic clay mineral, montmorillonite (Mt). Two experimental procedures were used: selective adsorption and wet impregnation. In the first case, an adsorption…

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 2014, 118 (44), pp.25447-25455. ⟨10.1021/jp507335e⟩. ⟨hal-01121644⟩

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Solvent effects on the vibrational spectrum of 3-hydroxyflavone

Ari Paavo Seitsonen, Abdenacer Idrissi, Stefano Protti, Alberto Mezzetti

3-hydroxyflavone (3HF) is a widely studied molecule that acts as a simplified prototype of biological, more complex flavonoids. Its solvation mechanism is still under investigation. Here we report a joint experimental and simulation study of the vibrational properties of 3HF in gas phase and in…

Journal of Molecular Liquids, 2019, 275, pp.723-728. ⟨10.1016/j.molliq.2018.11.020⟩. ⟨hal-02404703⟩

• Article dans une revue

Plasmonic Properties of Gold Nanostructures on Gold Film

Médéric Lequeux, David Mele, Priyamvada Venugopalan, Raymond Gillibert, Souhir Boujday, Wolfgang Knoll, Jakub Dostalek, Marc Lamy de La Chapelle

This paper reports on a systematic study of the plasmonic properties of periodic arrays of gold cylindrical nanoparticles in contact with a gold thin film. Depending on the gold film thickness, it observes several plasmon bands. Using a simple analytical model, it is able to assign all these modes…

Plasmonics, 2020, 15 (6), pp.1653-1660. ⟨10.1007/s11468-020-01185-9⟩. ⟨hal-03044556⟩

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A New Nanocomposite: L-DOPA/Laponite

Maguy Jaber, Jean-Francois Lambert

A simple procedure is reported to obtain original nanocomposite materials combining the smectite Laponite and melanin-like polymers. Aq. polymn. of L-DOPA is considerably accelerated in the presence of suspended Laponite particles, and its mechanism is significantly modified with respect to…

Journal of Physical Chemistry Letters, 2010, 1 (1), pp.85-88. ⟨10.1021/jz900020m⟩. ⟨hal-00604726⟩

• Communication dans un congrès

Preparation of SiO2-supported Ni-Fe nanoparticles exhibiting a Fe gradient for the hydrogenation of sugars in water

Francois Robert, Achraf Sadier, Catherine Amiens, Karine Philippot, Robert Wojcieszak, E. Marceau

13th International Symposium on the Preparation of Heterogeneous Catalysts (PREPA13), Jul 2023, Louvain-la-Neuve, Belgium. ⟨hal-04523325⟩

• Communication dans un congrès

Silica-supported iron-nickel nanoparticles for the hydrogenation of xylose

Francois Robert, Pierre Lecante, V. Collière, Achraf Sadier, Robert Wojcieszak, Jean Sébastien Girardon, Valérie Briois, E. Marceau, Catherine Amiens, Karine Philippot

SCF'23, Jun 2023, Nantes, France. ⟨hal-04523384⟩

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What Do the Niobium Framework Sites Look Like in Redox Zeolites? A Combined Theoretical and Experimental Investigation

Frederik Tielens, Tetsuya Shishido, Stanislaw Dzwigaj

Ab initio periodic DFT calculations oil the structural and energy properties of different model niobium framework sites ill niobium-substituted zeolites containing sodalite cavities are presented and related to experimental FTIR measurements oil Nb containing SiBEA zeolite. The niobium framework…

Journal of Physical Chemistry C, 2010, 114 (7), pp.3140-3147. ⟨10.1021/jp910956j⟩. ⟨hal-00604809⟩