• 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

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⟩

• Article dans une revue

Copper and Nickel Nanoparticles Prepared by Thermal Treatment of Their Respective Cations Confined in Nanopores through High-Pressure Synthesis

Nancy Brodie-Linder, Johnny Deschamps, Marianne Bombled, Nicolas Pasternak, Fabrice Audonnet, Patricia Beaunier, Christiane Alba-Simionesco

A new and simple method for preparing confined copper and nickel nanoparticles by thermal treatment of their respective cations inside Mobil Composition of Matter 41 (MCM–41) hydrophobic nanopores is presented here. Surface modified MCM–41 hydrophobic materials were impregnated by using high-…

Applied Nano, 2021, 2 (3), pp.278-288. ⟨10.3390/applnano2030020⟩. ⟨hal-03351411⟩

• Article dans une revue

Investigation of the collapse of bubbles after the impact of a piston on a liquid free surface

Maya Mounir Daou, Elena Igualada, Hugo Dutilleul, Jean-Marie Citerne, Javier Rodríguez-Rodríguez, Stéphane Zaleski, Daniel Fuster

A novel technique based on the impact of a piston on a liquid confined in a vessel is described. Pressure measurements reveal that strong pressure variations (up to 100 atmospheres) with a rich content of frequencies are efficiently transmitted to the liquid. High-speed camera visualizations show…

AIChE Journal, 2017, 63 (6), pp.2483-2495 ⟨10.1002/aic.15725⟩. ⟨hal-01510299⟩

• Communication dans un congrès

Formation of AlMo6 and NiMo6 heteropolymolybdates during the preparation of Mo(NiMo) supported on mesoporous materials: consequences on the properties of the sulphide phase.

A. Sampieri, Juliette Blanchard, Michèle Breysse, Katia Fajerwerg, C. Louis, Sylvette Brunet, Guy Perot, Stéphane Pronier

Europacat VII, 2005, Sofia, Bulgaria. ⟨hal-00293674⟩