• Article dans une revue

NOx-TPD as a Tool to Estimate the Accessible Zirconia Surface of ZrO2-Containing Materials

Hiu Ying Law, Juliette Blanchard, Xavier Carrier, Cyril Thomas

NOx adsorption-desorption experiments were carried out on a series of W-free and W-containing ZrO2 samples. To the best of our knowledge, this study establishes for the first time NOx-TPD (temperature-programmed desorption of NOx) as a reliable method to estimate the accessible ZrO2 surface of…

Journal of Physical Chemistry C, 2010, 114 (21), pp.9731-9738. ⟨10.1021/jp9089535⟩. ⟨hal-00604772⟩

• Article dans une revue

Supported gold catalysts for the decomposition of VOC: Total oxidation of propene in low concentration as model reaction

Laurent Delannoy, Katia Fajerwerg, Pandian Lakshmanan, Claude Potvin, Christophe Methivier, Catherine Louis

Supported gold catalysts prepared by deposition-precipitation with urea were studied in the reaction of oxidation of propene in low concentration in a large excess of oxygen, so as to mimic the conditions of catalytic decomposition of a volatile organic compound of hydrocarbon-type (1200 ppm C3H6,…

Applied Catalysis B: Environmental, 2010, 94 (1-2), pp.117-124. ⟨hal-00604712⟩

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Self-assembled multilayers based on native or denatured collagen: mechanism and synthesis of size-controlled nanotubes

Jessem Landoulsi, Sophie Demoustier-Champagne, Christine Dupont-Gillain

The mechanism of layer-by-layer (LbL) assembly using collagen, the major protein of the extracellular matrix, was investigated on flat substrates and in nanoporous templates, with a view to synthesize collagen-contg. nanotubes. The effect of parameters related to geometrical constraints (flat…

Soft Matter, 2011, 7 (7), pp.3337-3347. ⟨10.1039/C0SM00918K⟩. ⟨hal-00602942⟩

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An expeditious synthesis of early transition metal carbide nanoparticles on graphitic carbons

Debora Ressnig, Simona Moldovan, Ovidiu Ersen, Patricia Beaunier, David Portehault, Clément Sanchez, Sophie Carenco

An expeditious synthesis of metal carbide nanoparticles onto various carbon supports is demonstrated. The procedure is versatile and readily yields TiC, VC, Mo2C and W2C nanoparticles on different types of carbons. The reaction is initiated at room temperature and proceeds within seconds. This…

Chemical Communications, 2016, 52 (61), pp.9546-9549. ⟨10.1039/c6cc04157d⟩. ⟨hal-01346258v2⟩

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Formation of Activated Biomolecules by Condensation on Mineral Surfaces – A Comparison of Peptide Bond Formation and Phosphate Condensation

Thomas Georgelin, Maguy Jaber, Houssein Bazzi, Jean-François Lambert

Many studies have reported condensation reactions of prebiotic molecules, such as the formation of peptide bonds between amino acids, to occur to some degree on mineral surfaces. We have studied several such reactions on the same divided silica. When drying steps are applied, the equilibria of…

Origins of Life and Evolution of the Biosphere, 2013, 43 (4-5), pp.429-43. ⟨10.1007/s11084-013-9345-2⟩. ⟨hal-01121640⟩

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Impact of Collagen Crosslinking on Dislocated Human Shoulder Capsules—Effect on Structural and Mechanical Properties

Pauline Cornette, Ilhem Jaabar, Vincent Dupres, Jean-David Werthel, Francis Berenbaum, Xavier Houard, Jessem Landoulsi, Geoffroy Nourissat

Classical treatments of shoulder instability are associated with recurrence. To determine whether the modification of the capsule properties may be an alternative procedure, the effect of crosslinking treatment on the structure and mechanical properties of diseased human shoulder capsules was…

International Journal of Molecular Sciences, 2022, 23 (4), pp.2297. ⟨10.3390/ijms23042297⟩. ⟨hal-03617260⟩

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Acid–base characterization of heterogeneous catalysts: an up-to-date overview

Jacques C. Védrine

Research on Chemical Intermediates, 2015, 41 (12), pp.9387 - 9423. ⟨10.1007/s11164-015-1982-9⟩. ⟨hal-01451681⟩

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Rational design of a CO2-resistant toluene hydrogenation catalyst based on FT-IR spectroscopy studies

Julien Scalbert, Cécile Daniel, Yves Schuurman, Cyril Thomas, Frédéric C. Meunier

Rhodium highly dispersed on alumina becomes partly poisoned by strongly bound CO when used for toluene hydrogenation at 348 K in the presence of CO2. Operando FT-IR analysis enabled to observed CO(ads) build up over the sample, while no CO(gas) could be measured in the reactor effluent. Analyses…

Journal of Catalysis, 2014, 318, pp.61-66. ⟨10.1016/j.jcat.2014.07.013⟩. ⟨hal-01065000⟩

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On the origin of the changes in color of Ag/Al2O3 catalysts during storage

Tesnim Chaieb, Dalil Brouri, Sandra Casale, Jean-Marc Krafft, Tiago da Silva, Cyril Thomas, Laurent Delannoy, Catherine Louis

Despite the large number of catalytic studies involving Ag/Al2O3 catalysts, especially in deNOx reactions, the phenomenon of ageing observed during catalysts storage after preparation by impregnation followed by a calcination treatment, has not been reported earlier and rises questions. The present…

Research on Chemical Intermediates, 2019, 45 (12), pp.5877 - 5905. ⟨10.1007/s11164-019-04007-8⟩. ⟨hal-02407541⟩

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Ordered Nanostructures on a Hydroxylated Aluminum Surface through the Self-Assembly of Fatty Acids.

Irma Liascukiene, Nesrine Aissaoui, Svajus J. Asadauskas, Jessem Landoulsi, Jean-François Lambert

We investigate the mechanism of self-assembly of fatty acids (FA) and methyl oleate on an Al oxy-hydroxide surface with a view to deciphering the role and nature of interfacial processes (adsorption, chemical binding, molecular organization, etc.). For this purpose, we focus on parameters related…

Langmuir, 2012, 28, pp.5116-5124. ⟨10.1021/la2051542⟩. ⟨hal-00688636⟩