• Article dans une revue

Preparation of thin film gold based catalysts for oxidation reactions in liquid and gas phases

Anne-Félicie Lamic-Humblot, Philippe Barthe, Guillaume Guzman, Laurent Delannoy, Catherine Louis

This work deals with the preparation of gold on titania catalysts to make catalytic films in the less than 100 nm thickness area and its comparison with usual powder catalyst in catalytic oxidation reactions in gas and liquid phases. Titania was coated on glass plates with different thicknesses,…

Thin Solid Films, 2012, 527, pp.96-101. ⟨10.1016/j.tsf.2012.11.096⟩. ⟨hal-00906344⟩

• Article dans une revue

Conversion of syngas-derived C 2 + mixed oxygenates to C 3 –C 5 olefins over Zn x Zr y O z mixed oxide catalysts

Colin Smith, Vanessa Lebarbier Dagle, Matthew Flake, Karthikeyan K. Ramasamy, Libor Kovarik, Mark Bowden, Thomas Onfroy, Robert A. Dagle

In this study we report on a ZnxZryOz mixed oxide type catalyst capable of converting a syngas-derived C2+ mixed oxygenate feedstock to isobutene-rich olefins. Aqueous model feed comprising of ethanol, acetaldehyde, acetic acid, ethyl acetate, methanol, and propanol was used as representative…

Catalysis Science & Technology, 2015, 6 (7), pp.2325 - 2336. ⟨10.1039/C5CY01261A⟩. ⟨hal-01547866⟩

• Article dans une revue

LRS-1, a new delaminated phyllosilicate material with high acidity », Chem. Mater., 18(1), 34-40 (2006).

Bachar Zebib, Jean-François Lambert, Juliette Blanchard, Michèle Breysse

Well-crystallized samples of the phyllosilicate magadiite have been synthesized in their sodic form, both purely silicic and with an Al/Si ratio of 30. They have been delaminated by a procedure consisting of CTMA+ swelling in the presence of TPAOH, sonication, and calcination at 700°C to remove the…

Chemistry of Materials, 2006, 18 (1), pp.34-40. ⟨hal-00022068⟩

• Article dans une revue

Hydrodeoxygenation of Furfural over Unsupported, SiO 2 ‐supported or Metal‐promoted Mo Carbides: Tunning the Selectivity between 2‐Methylfuran and C 10 Furoins Diesel Precursors

Letícia Sosa, Priscilla de Souza, Raphaela Rafael, Robert Wojcieszak, E. Marceau, Sébastien Paul, Valérie Briois, Fabio Noronha, Fabio Toniolo

Abstract The hydrodeoxygenation of furfural (FF) over Mo carbides in liquid phase at 200 °C, 30 bar of H 2 for 4 h in 2‐butanol was investigated. Unsupported and SiO 2 ‐supported Mo carbide with different crystallographic phases (β‐Mo 2 C/SiO 2 and α‐MoC/SiO 2 ), and in the presence of Cu and Ni as…

ChemCatChem, 2023, 16 (2), ⟨10.1002/cctc.202300890⟩. ⟨hal-04786694⟩

• Article dans une revue

Controlling Magnesium Silicates Coprecipitation Conditions: A Tool to Tune Their Surface Acid–Base Reactivity

François Payan, Albert Issa, Jean-Marc Krafft, Yannick Millot, Thomas Onfroy, Capucine Sassoye, Jean-François Hochepied, Guillaume Laugel, Hélène Lauron-Pernot

Magnesium silicates combining acidic and basic surface properties are known to be interesting as heterogeneous catalysts. Nevertheless, their catalytic performances are highly dependent on the synthesis method used. In this study, a series of magnesium silicates was synthesized for the first time…

Catalysts, 2023, 13 (11), pp.1393. ⟨10.3390/catal13111393⟩. ⟨hal-04391661⟩

• Article dans une revue

A fullerene helical peptide: synthesis, characterization and formation of self-assembled monolayers on gold surfaces

Houssein Nasrallah, Jad Rabah, Van Bui-Thi-Tuyet, Krystyna Baczko, Hélène Fensterbank, Flavien Bourdreux, Anne-Marie Goncalves, Valérie Declerck, Souhir Boujday, Vincent Humblot, Karen Wright, Anne Vallée, Emmanuel Allard

The synthesis of a C60-peptide using "clickable" fullerene and peptide derivatives is described. The peptide is composed of a repeating sequence of -aminoisobutyric acid (Aib) and two L-Alanine (Ala) residues, promoting the formation of a helical conformation, which has been confirmed by…

New Journal of Chemistry, 2018, 42 (24), pp.19423-19432. ⟨10.1039/c8nj04599b⟩. ⟨hal-02348881⟩

• Article dans une revue

A simple way to graft a bioactive polymer – Polystyrene sodium sulfonate on silicone surfaces

Mylan Lam, Vivien Moris, Vincent Humblot, Veronique Migonney, Céline Falentin-Daudre

Silicone-based materials are largely used in plenty of fields, especially in the biomedical field as implantable devices for surgery purposes. However, due to recent issues, the safety of the material has been reconsidered. In this work, we aim to graft a bioactive polymer on silicone breast…

European Polymer Journal, 2020, 128, pp.109608. ⟨10.1016/j.eurpolymj.2020.109608⟩. ⟨hal-03012696⟩

• Article dans une revue

Role of nitrite species during the formation and transformation of the Fe(II–III) hydroxycarbonate green rust

Ph. Refait, M. Reffass, J. Landoulsi, R. Sabot, Marc Jeannin

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014, 459, pp.225-232. ⟨10.1016/j.colsurfa.2014.07.004⟩. ⟨hal-02478379⟩

• Thèse

Synthèse prébiotique de Ribonucléotides sur des surfaces minérales, Prebiotic synthesis of Ribonucleotides on mineral surfaces

Mariame Akouche

Dans le contexte prébiotique du " monde ARN ", les ribonucléotides sont considérés comme étant les premières espèces à avoir émergé sur Terre. En milieu aqueux, leur formation est défavorable thermodynamiquement. Les voies de synthèse de nucléotides décrites en phase homogène impliquent l…, In the « RNA world» prebiotic scenario, ribonucleotide polymers are considered as the first biochemical species to have emerged. However, in aqueous solution, their formation through conventional mechanisms of condensation is thermodynamically forbidden. Several synthesis pathways of nucleotides…

Chimie-Physique [physics.chem-ph]. Université Pierre et Marie Curie - Paris VI, 2016. Français. ⟨NNT : 2016PA066609⟩. ⟨tel-01547822⟩

• Pré-publication, Document de travail

Preparation of Supported Gold Nanoparticles by a Modified Incipient Wetness Impregnation Method

Laurent Delannoy, Nissrine El Hassan, Andrea Musi, Nga Nguyen Le To, Jean-Marc Krafft, Catherine Louis

In this work, we show that if the mere procedure of impregnation of oxide supports with chloroauric acid, which is well-known to lead to large gold particles, is followed by a step of washing with ammonia, small gold particles (3-4 nm) can be obtained after a treatment of calcination at 300 °C on…

2006. ⟨hal-00115962⟩