• Article dans une revue

Identification of the OH groups responsible for kinetic basicity on MgO surfaces by 1H MAS NMR

Céline Chizallet, H. Petitjean, G. Costentin, H. Lauron-Pernot, J. Maquet, Christian Bonhomme, M. Che

Journal of Catalysis, 2009, pp.175-179. ⟨10.1016/J.jcat.2009.09.003⟩. ⟨hal-00446808⟩

• Article dans une revue

Surface IR immunosensors for label-free detection of benzo[a]pyrene

Souhir Boujday, Soumaya Nasri, Michele Salmain, Claire-Marie Pradier

Polycyclic aromatic hydrocarbons (PAHs) are a family of contaminants originating from the incomplete combustion of organic compounds, present in the urban air, water, soil and also foodstuff. Due to their recognised carcinogenicity, their concentration in urban air is routinely monitored and…

Biosensors & bioelectronics, 2010, 26 (4), pp.1750-1754. ⟨10.1016/j.bios.2010.08.031⟩. ⟨hal-00604705⟩

• Article dans une revue

Salt concentration and pH-dependent adsorption of two polypeptides on planar and divided alumina surfaces; in situ IR investigations.

Claire-Marie Pradier, Vincent Humblot, Lorenzo Stievano, Christophe Méthivier, Jean-François Lambert

The adsorption of proteins is the first process to take place when a solid is immersed in a biological fluid; though not yet thoroughly understood at a molecular level, this process is also known to be strongly influenced by the presence of salt in solution or by pH changes. In the present work,…

Langmuir, 2007, 23, pp.2463-2471. ⟨10.1021/la062208p⟩. ⟨hal-00138685⟩

• Article dans une revue

Search for confinement effects in mesoporous supports: hydrogenation of o-xylene on Pt /MCM-41

Franck Letellier, Juliette Blanchard, Katia Fajerwerg, Catherine Louis, Michele Breysse, Denis Guillaume, Denis Uzio

The occurrence in meso-porous supports of a confinement effect related to the adsorption strength of a reaction intermediate on a metallic phase dispersed in the meso pores is examd., as well as its effect on the activity and selectivity. A model is proposed in order to det. the catalyst…

Catalysis Letters, 2006, 110, pp.115-124. ⟨10.1007/s10562-006-0093-z⟩. ⟨hal-00111995⟩

• Article dans une revue

Influence of the texturalproperties of porousaluminas on the reducibility of Ni/Al2O3 catalysts

Faiza Bentaleb, Eric Marceau

Temperature-programmed reduction (TPR) profiles recorded on calcined Ni/Al2O3 catalysts exhibiting the same Ni(II) surface density (3 Ni2+ nm−2) suggest that nickel speciation and reducibility are significantly influenced by the specific surface area and texturalproperties of aluminas, and by their…

Microporous and Mesoporous Materials, 2012, 156, pp.40-44. ⟨10.1016/j.micromeso.2012.02.018⟩. ⟨hal-00686937⟩

• Article dans une revue

Impact of sorbitol addition on the structure and performance of silica-supported cobalt catalysts for Fischer-Tropsch synthesis

Hong Jingping, Eric Marceau, Andrei Y. Khodakov, Anne Griboval-Constant, Camille La Fontaine, Françoise Villain, Valérie Briois, P.A. Chernavskii

The paper focuses on the impact of sorbitol addition on the genesis of cobalt active phases in silica-supported catalysts and on their performance in Fischer-Tropsch synthesis. The catalysts were characterized by ex situ and in situ diffuse reflectance spectroscopy in the ultraviolet and visible…

Catalysis Today, 2011, 175 (1), pp.Pages 528-533. ⟨10.1016/j.cattod.2011.03.007⟩. ⟨hal-00663000⟩

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Mesostructured or Alumina-mesostructured Silica SBA-16 as Potential Support for NOx Reduction and Ethanol Oxidation

Maya Boutros, Thomas Onfroy, Patrick da Costa

Synthesis of some meso-structured SiO2 or aluminosilica (SBA-16 and Al-SBA-16) with a 3-dimensional cubic structure is reported. Structural and porosity properties of these materials were studied by x-ray diffraction, N2 sorption, and transmission electron microscopy imaging.; Al insertion was detd…

Catalysis Letters, 2010, 139 (1-2), pp.50-55. ⟨10.1007/s10562-010-0391-3⟩. ⟨hal-00604706⟩

• Article dans une revue

Mechanism and deactivation process of the conversion of methylbutynol on basic faujasite monitored by operando DRIFTS

Jean-Francois Groust, Guylene Costentin, Jean-Marc Krafft, Pascale Massiani

The successive steps occurring during conversion of methylbutynol (MBOH) on a basic NaX zeolite catalyst were characterized by combined micro-GC and operando DRIFT spectroscopy, assocd. to TPD-MS expts. These techniques permit to reveal a very strong and fast initial decrease in MBOH consumption,…

Physical Chemistry Chemical Physics, 2010, 12 (4), pp.937-946. ⟨10.1039/b919733h⟩. ⟨hal-00604717⟩

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Genesis of supported carbon-coated Co nanoparticles with controlled magnetic properties, prepared by decomposition of chelate complexes

Konstantin Tarasov, Patricia Beaunier, Michel Che, Eric Marceau, Yanling Li

Following procedures formerly developed for the prepn. of supported heterogeneous catalysts, carbon-coated cobalt nanoparticles dispersed on porous alumina have been prepd. by impregnation of γ-Al2O3 with (NH4)2[Co(EDTA)] and thermal decompn. in inert atm. Below 350 °C, Co(II) ions are complexed…

Journal of Nanoparticle Research, 2011, 13 (5), pp.1873-1887. ⟨10.1007/s11051-010-9938-x⟩. ⟨hal-00602952⟩

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Synergy between XANES spectroscopy and DFT to Elucidate the Amorphous Structure of Heterogeneous Catalysts: TiO2-Supported Molybdenium Oxide Catalysts

Asma Tougerti, Elise Berrier, Anne-Sophie Mamede, Camille La Fontaine, Valérie Briois, Yves Joly, Edmond Payen, Sylvain Cristol, J.F. Paul

Angewandte Chemie International Edition, 2013, 52, pp.6440. ⟨10.1002/ange.201300538⟩. ⟨hal-00855400⟩