• Article dans une revue

Low temperature dry reforming of methane on rhodium and cobalt based catalysts: active phase stabilization by confinement in the mesoporous SBA-15

N. El Hassan, M.N. Kaydouh, H. Geagea, H. Elein, Karam Jabbour, S. Casale, H El Zakhem, Pascale Massiani

Two silica supports either non porous (SiO2) or mesoporous (SBA-15) were impregnated with cobalt (12 wt%) in order to study the confinement effect on catalytic performances in dry reforming of methane. Further increase of activity was obtained by adding small amounts of rhodium (0.2 and 0.5 wt%) to…

Applied Catalysis A : General, 2016, 520, pp.114-121. ⟨10.1016/j.apcata.2016.04.014⟩. ⟨hal-01305526⟩

• Thèse

Sensibilité de la réaction de conversion de l'éthanol en n-butanol à la structure des hydroxyapatites : mode de fonctionnement, Sensitivity of the ethanol conversion in n-butanol to the hydroxyapatite structure

Manel Ben Osman

Les hydroxyapatites (HAps) sont des matériaux basiques qui présentent des propriétés catalytiques atypiques, notamment une sélectivité importante en butanol à partir de l’éthanol. Leur versatilité en termes de composition et de morphologie, facilement contrôlée par la synthèse, s’accompagne d’une…, StructureHydroxyapatites (HAps) are basic materials which exhibit atypical catalytic properties, particularly a high selectivity in n-butanol from ethanol’s conversion. Versatility in terms of composition and morphology, easily tuned by synthesis, is accompanied by a high modularity of acid-base…

Science des matériaux [cond-mat.mtrl-sci]. Université Pierre et Marie Curie - Paris VI, 2014. Français. ⟨NNT : 2014PA066567⟩. ⟨tel-01231353⟩

• Poster de conférence

Influence of the preparation routes of NiMgAl-mixed oxides on their CO2 methanation catalytic activities

Michel Obeid, Christophe Poupin, Madona Labaki, Samer Aouad, François Delattre, Eric M. Gaigneaux, Josefine Schnee, Edmond Abi-Aad

18th International Congress on Catalysis, Jul 2024, Lyon (FRANCE), France. ⟨hal-04658846⟩

• Article dans une revue

Design of Mixed PEO/PAA Brushes with Switchable Properties Toward Protein Adsorption

M.F. Delacroix, G.L. Huet, T. Conard, S. Demoustier-Champagne, Filip E. Du Prez, Jessem Landoulsi, C.C. Dupont-Gillain

Adsorption of proteins at interfaces is an ubiquitous phenomenon of prime importance. Layers of poly(ethylene oxide) (PEO) are widely used to repel proteins. Conversely, proteins were shown to adsorb deeply into brushes of poly(acrylic acid) (PAA), and their subsequent partial release could be…

Biomacromolecules, 2012, 14, pp.215-225. ⟨10.1021/bm301637h⟩. ⟨hal-00917091⟩

• Article dans une revue

Building of an immunosensor : how can the composition and structure of the thiol attachment layer affect the immunosensor efficiency ?

Elisabeth Briand, Michèle Salmain, Jean-Marie Herry, Hubert Perrot, Chantal Compere, Claire-Marie Pradier

Immunosensors, based on the immobilsation of model rabbit antibodies on a mixed self assembled monolyaers and Protein A as a linking agent on gold transducers, were elaborated and characterised at each step by Modulated polarisation- Infrared Spectroscopy (PM-IRRAS) and punctually by Atomic Force…

Biosensors & bioelectronics, 2006, 22 (3), pp.440-448. ⟨10.1016/j.bios.2006.05.018⟩. ⟨hal-00111673⟩

• Article dans une revue

In Situ Solid–Gas Reactivity of Nanoscaled Metal Borides from Molten Salt Synthesis

Guillaume Gouget, Damien P. Debecker, Ara Kim, Giorgia Olivieri, Jean-Jacques Gallet, Fabrice Bournel, Cyril Thomas, Ovidiu Ersen, Simona Moldovan, Clément Sanchez, Sophie Carenco, David Portehault

Metal borides have mostly been studied as bulk materials. The nanoscale provides new opportunities to investigate the properties of these materials, e.g., nanoscale hardening and surface reactivity. Metal borides are often considered stable solids because of their covalent character, but little is…

Inorganic Chemistry, 2017, 56 (15), pp.9225 - 9234. ⟨10.1021/acs.inorgchem.7b01279⟩. ⟨hal-01739853⟩

• Article dans une revue

On the promotional effect of Pd on the propene-assisted decomposition of NO on chlorinated Ce0.68 Zr0.32 O2

Cyril Thomas, Olivier Gorce, Céline Fontaine, Jean-Marc Krafft, Françoise Villain, Gérald Djéga-Mariadassou

The selective catalytic reduction (SCR) of NOx assisted by propene is investigated on Pd/Ce0.68 Zr0.32 O2 catalysts (Pd/CZ), and is compared, under identical experimental conditions, with that found on a Pd/SiO2 reference catalyst. Physico-chemical characterisation of the studied catalysts along…

Applied Catalysis B: Environmental, 2006, 63, pp.201-214. ⟨hal-00181040⟩

• Article dans une revue

Methane dry reforming over hydrotalcite-derived Ni–Mg–Al mixed oxides: the influence of Ni content on catalytic activity, selectivity and stability

Radosław Dębek, Monika Motak, Dorota Duraczyska, Franck Launay, Maria Elena Galvez, Teresa Grzybek, Patrick da Costa

Ni-containing hydrotalcite-derived catalysts were prepared using different Ni loadings (from ca. 4 to 60 wt%) at the same MII/MIII ratio equal to 3. The influence of the Ni content on the physico-chemical features of these catalysts was studied, as well as the influence of this parameter on their…

Catalysis Science & Technology, 2016, 6 (17), pp.6705 - 6715. ⟨10.1039/C6CY00906A⟩. ⟨hal-01547978⟩

• Article dans une revue

Chemical Differentiation of Planets: A Core Issue

Hervé Toulhoat, Viacheslav Zgonnik

By plotting empirical chemical element abundances on Earth relative to the Sun and normalized to silicon versus their first ionization potentials, we confirm the existence of a correlation reported earlier. To explain this, we develop a model based on principles of statistical physics that predicts…

The Astrophysical Journal, 2022, 924 (2), pp.83. ⟨10.3847/1538-4357/ac300b⟩. ⟨hal-03536637⟩

• Article dans une revue

How does CO capture process on microporous NaY zeolites? A FTIR and DFT combined study

Olivier Cairon, Hazar Guesmi

Reliable experimental IR and theoretical approaches, both investigating CO adsorption on NaY faujasites, are supporting that CO capture occurs through the completion of the vacant coordination of Na+ cations located in the accessible SII sites. As a result, carbonyl adsorbed species are formed by…

Physical Chemistry Chemical Physics, 2012, 13, pp.11430-11437. ⟨10.1039/C1CP20086K⟩. ⟨hal-00668329⟩