• 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⟩

• Article dans une revue

The Synthesis of Different Series of Cobalt BEA Zeolite Catalysts by Post-Synthesis Methods and Their Characterization

Renata Sadek, Karolina Chalupka-Spiewak, Jean-Marc Krafft, Yannick Millot, Laetitia Valentin, Sandra Casale, Jacek Gurgul, Stanislaw Dzwigaj

Three series of zeolite catalysts Co all-silica and Co Al-containing zeolites beta were prepared for use in the selective oxidative dehydrogenation of propane to propylene. Two series of zeolite catalysts Co all-silica were prepared by a two-step postsynthesis method at pH = 2.5 and pH = 3.0-9.0,…

Catalysts, 2022, 12 (12), pp.1644. ⟨10.3390/catal12121644⟩. ⟨hal-04030832⟩

• 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

Real-time colorimetric hydration sensor for sport activities

Yubin Zhou, Htet Han, Hnin Pwint Phyuson Naw, Alice Venecia Lammy, Chee Hong Goh, Souhir Boujday, Terry W.J. Steele

Dehydration and over-hydration are a serious health concern in endurance sport activities, especially in tropical climates. Current methods for detection are inconvenient and not widely applied. Point-of-care hydration monitoring during a sport event is an ideal preventative therapy, as it allows…

Materials & Design, 2016, 90, pp.1181 - 1185. ⟨10.1016/j.matdes.2015.06.078⟩. ⟨hal-01548066⟩

• Article dans une revue

Silk Bionanocomposites for Organic Dye Absorption and Degradation

Cristina Belda Marín, Christophe Egles, Jessem Landoulsi, Erwann Guénin

Organic dyes are extensively used in the textile, paper and paint industries, among others. However, the lack of efficient treatment of disposals leads to the release of these toxic molecules into the environment, which has an enormous impact on living organisms. Dye absorption is the most common…

Applied Sciences, 2022, 12 (18), pp.9152. ⟨10.3390/app12189152⟩. ⟨hal-04030762⟩

• 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

Silica-Supported Au-Ag Catalysts for the Selective Hydrogenation of Butadiene

Nazila Masoud, Laurent Delannoy, Christophe Calers, Jean-Jacques Gallet, Fabrice Bournel, Krijn P. de Jong, Catherine Louis, Petra E. de Jongh

Gold and silver are miscible over the entire composition range, and form an attractive combination for fundamental studies on bimetallic catalysts. Au–Ag catalysts have shown synergistic effects for different oxidation and liquid-phase hydrogenation reactions, but have rarely been studied for gas-…

ChemCatChem, 2017, 9 (12), pp.2418-2425. ⟨10.1002/cctc.201700127⟩. ⟨hal-01547372⟩

• Article dans une revue

Selectivity in the gas-phase hydrogenation of 4-nitrobenzaldehyde over supported Au catalysts

Noémie Perret, Xiaodong Wang, Thomas Onfroy, Christophe Calers, Mark A Keane

The effects of Au particle size and support properties have been examined in the gas-phase hydrogenation of 4-nitrobenzaldehyde over Au/ZrO2, Au/TiO2 and Au/Al2O3. Gold particle size was varied using deposition-precipitation and impregnation syntheses. The catalysts have been characterised in terms…

Journal of Catalysis, 2014, 309, pp.333-342. ⟨10.1016/j.jcat.2013.10.011⟩. ⟨hal-00982883⟩

• 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

In-situ monitoring of transition metal complex adsorption on oxide surfaces during the first stages of supported metal catalyst preparation

Juliette Blanchard, Antoine Hervier, Guylène Costentin, John Regalbuto, Catherine Louis, Souhir Boujday

In the preparation of supported catalysts by deposition, in solution, of a transition metal complex (TMC) on an oxide support, the interactions occurring at the solid/liquid interface between the TMC and the oxide have a crucial impact on the properties of the final catalyst. However, these…

Catalysis Today, 2014, 235, pp.245-249. ⟨10.1016/j.cattod.2014.03.031⟩. ⟨hal-01077975⟩