• Article dans une revue

HRTEM and STEM-HAADF characterisation of Au-TiO2 and Au-Al2O3 catalysts for a better understanding of the parameters influencing their properties in CO oxidation

L. Delannoy, R.L. Chantry, S. Casale, Z.Y. Li, Yves Borensztein, C. Louis

Gold catalysts supported on titania (Au-TiO2) and alumina (Au-Al2O3) were prepared by deposition- precipitation with urea and then activated before characterisation and reaction in CO oxidation, either by calcination in air at 500 1C or reduction under H2 at 300 1C. Gold nanoparticles with average…

Physical Chemistry Chemical Physics, 2013, 15, pp.3473-3479. ⟨10.1039/c2cp44157h⟩. ⟨hal-00811527⟩

• Article dans une revue

Spectroscopie d'absorption X et catalyse hétérogène

Edmond Payen, Laurent Barthe, Elise Berrier, Juliette Blanchard, Valérie Briois, Xavier Carrier, Michel Che, Sylvain Cristol, Anne Griboval-Constant, Jingping Hong, Yves Joly, Andrei Y. Khodakov, Camille La Fontaine, Eric Marceau, Pascale Massiani, Asma Tougerti

La connaissance détaillée des mécanismes de réaction en catalyse hétérogène nécessite une description précise de la géométrie et de l'environnement local des sites actifs qui sont déterminants pour les performances catalytiques (conversion, sélectivité). La spectroscopie d'absorption X (…

L'Actualité Chimique, 2011, 356-357, pp.20-28. ⟨hal-00667490⟩

• Article dans une revue

Contributions of photochemistry to bio-based antibacterial polymer materials

Davy-Louis Versace, Louise Breloy, Estelle Palierse, Thibaud Coradin

Surgical site infections constitute a major health concern that may be addressed by conferring antibacterial properties to surgical tools and medical devices via functional coatings. Bio-sourced polymers are particularly well-suited to prepare such coatings as they are usually safe and can exhibit…

Journal of materials chemistry‎ B, In press, ⟨10.1039/D1TB01801A⟩. ⟨hal-03450996⟩

• Article dans une revue

Toward new proton exchange batteries based on ionic liquid electrolyte: Metal hydride electrode / electrolyte coupling

Nesrine Chaabene, J. Zhang, Mireille Turmine, E. Kurchavova, Vincent Vivier, F. Cuevas, M. Mateos, M. Latroche, J. Monnier

The voltage of an alkaline electrolyte-based battery is limited by the narrow electrochemical stability window of water. As an alternative to water, protic ionic liquid (IL)-based electrolytes have shown excellent conducting properties as well as a wide electrochemical stability window, and can…

Journal of Power Sources, 2023, 574, pp.233176. ⟨10.1016/j.jpowsour.2023.233176⟩. ⟨hal-04129101⟩

• Article dans une revue

Effect of nanocrystallization on the structure and the magnetic properties of Nd–Fe–Co–Al–B glassy alloy

Lotfi Bessais, C. Djéga-Mariadassou, P. Beaunier

Nd 40 Fe 30 Co 15 Al 10 B 5 bulk amorphous prepared by high energy milling shows a coercivity of 650kA∕m with a Curie temperature of 645K. The controlled nanocrystallization enhances the coercivity to 1600kA∕m and the remanence ratio is equal to 0.59. The coexistence of two crystalline magnetic…

Journal of Applied Physics, 2006, 99 (9), ⟨10.1063/1.2195367⟩. ⟨hal-04232420⟩

• Article dans une revue

From Al2O3-supported Ni(II)-ethylenediamine complexes to CO hydrogenation catalysts: Characterization of the surface sites and catalytic properties

Eric Marceau, Axel Löfberg, Jean-Marc Giraudon, Fabien Négrier, Michel Che, Lucien Leclercq

Applied Catalysis A : General, 2009, 362, pp.34-39. ⟨10.1016/j.apcata.2009.04.029⟩. ⟨hal-00412330⟩

• Article dans une revue

Alternated p-Conjugated Polymers Based on a 1,2- Diiminocyclohexane Chiral Unit for Nitroaromatics Sensing

Simon Clavaguera, Olivier J. Dautel, Lionel Hairault, Christophe Méthivier, Pierre Montméat, Eric Pasquinet, Claire-Marie Pradier, Françoise Serein-Spirau, Salem Wakim, Florian Veignal, Joël J.E. Moreau, Jean-Pierre Lère-Porte

The detection of 2,4-dinitrotoluene (DNT) by fluorescence quenching of a new class of polyimines consisting in p-conjugated segments regularly alternated with chiral C2 symmetry units has been studied for solutions and thin films. Their photophysical properties and their sensitivity towards DNT…

Journal of Polymer Science Part A: Polymer Chemistry, 2009, pp.xxx, xxx. ⟨10.1002/pola.23474⟩. ⟨hal-00394190⟩

• Article dans une revue

Rheo-SAXS study of a shear-thinning hydrogel containing clay nanoplatelets

Claire Hotton, Guylaine Ducouret, Juliette Sirieix-Plénet, Thomas Bizien, Clément Guibert, Pierre Levitz, Laurent Michot, Natalie Malikova

Shear-induced orientation of clay nanoplatelets within a physically cross-linked hydrogel based on ionenes, positively charged polyelectrolytes, is studied here. Small angle X-ray scattering measurements (SAXS) are performed under shear within a Couette cell cylinder (rheo-SAXS). As the SAXS signal…

Applied Clay Science, 2024, 255 (107392), ⟨10.1016/j.clay.2024.107392⟩. ⟨hal-04440893v2⟩

• Article dans une revue

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⟩

• Communication dans un congrès

A microGC study of the deactivation process during conversion of methylbutynol on basic zeolites

Pascale Massiani, Jean-François Groust, Guylène Costentin, Laurent Teyssier

The initial deactivation occurring during conversion of methylbutunol on basic alkali-faujasite catalysts was studied by microGC. Both the product selectivity and the formation of water during the first minutes of run permit to conclude on the deactivation process and on the nature of the adsorbed…

Feb 2006, pp.167-172. ⟨hal-00127087⟩