• Article dans une revue

Bifunctional Polyoxometalates for Planar Gold Surface Nanostructuration and Protein Immobilization

Dimitri Mercier, Souhir Boujday, Cyrine Annabi, Richard Villanneau, Claire-Marie Pradier, Anna Proust

Surface nanostructuration was successfully achieved by binding the polyoxometalate (POM) (NBu4)3[PW11O39{(SiC6H4NH2)2O}] covalently onto planar gold surfaces. To do so, POMs functionalized with two terminal amino groups were synthesized and reacted with a mercaptoundecanoic acid self-assembled…

Journal of Physical Chemistry C, 2012, 116 (24), pp.13217-13224. ⟨10.1021/jp3031623⟩. ⟨hal-04564848⟩

• Article dans une revue

Heterogeneous catalyst preparation in ionic liquids: Titania supported gold nanoparticles

Camella Oumahi, Jean Lombard, Sandra Casale, Christophe Calers, Laurent Delannoy, Catherine Louis, Xavier Carrier

This work reports the use of ionic liquids (ILs) as solvent for the synthesis of Au/TiO2 heterogeneous catalysts. It is shown that the versatility of the physico-chemical properties of ILs makes them interesting solvents for a broad control of supported metal nanoparticles (NPs) size and for a fine…

Catalysis Today, 2014, 235, pp.58-71. ⟨10.1016/j.cattod.2014.03.029⟩. ⟨hal-01077978⟩

• Article dans une revue

Influence of the Ageing and Drying Steps of a CoMoP/γ‐Al2O3 Catalyst onto the Multi‐Scale Molybdenum Active Phase Organization

Candice Cottrez, Séverine Humbert, Anne‐sophie Gay, Elodie Devers, Frédéric de Geuser, Xavier Carrier, Alexandra Chaumonnot

To study the influence of ageing and drying steps onto the multiscale Mo active phase arrangement (i. e. MoS2 slabs and slab aggregates), a series of highly loaded CoMoP/γ-Al2O3 catalysts aged, unaged, dried or freeze-dried were prepared and tested in toluene hydrogenation. Electron Probe Micro…

ChemCatChem, 2023, 15 (6), pp.e202201432. ⟨10.1002/cctc.202201432⟩. ⟨hal-04179985⟩

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Surface-generated copper ions induce multilayer growth of small peptides

Jessem Landoulsi, Vincent Dupres, Christophe Méthivier, Ivan Leteyi Mfiban, Pauline Cornette, Elodie Colaço, Claire-Marie Pradier

Herein, we investigate the adsorption behavior of a small peptide, Glu-Cys-Gly, in aqueous solution onto copper surface and unravel a mechanism of growth of a hybrid peptide-copper multilayer the thickness of which may exceed a hundred of nanometers. Thanks to a combined set of surface…

Applied Surface Science, 2020, 507, pp.145105. ⟨10.1016/j.apsusc.2019.145105⟩. ⟨hal-03489696⟩

• Communication dans un congrès

Transversal elasticity of TIEG1 KO muscle fibers probed by atomic force microscopy

Malek Kammoun, Vincent Dupres, Jessem Landoulsi, Malayannan Subramaniam, John Hawse, Sabine Bensamoun

8th World Congress of Biomechanics, Jul 2018, Dublin, Ireland. ⟨hal-01982831⟩

• Article dans une revue

Hierarchical collagen-hydroxyapatite nanostructures designed through layer-by-layer assembly of crystal-decorated fibrils

Elodie Colaço, Dalil Brouri, Nesrine Aissaoui, Pauline Cornette, Vincent Dupres, Rute F Domingos, Jean-François Lambert, Emmanuel Maisonhaute, Karim El Kirat, Jessem Landoulsi

A comprehensive understanding of the mechanism by which type I collagen (Col) interacts with hydroxyapatite nanoparticles (Hap NPs) in aqueous solutions is a pivotal step for guiding the design of biologically relevant nanocomposites with controlled hierarchical structure. In this paper we use a…

Biomacromolecules, 2019, 20, pp.4522-4534. ⟨10.1021/acs.biomac.9b01299⟩. ⟨hal-02361539⟩

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Time-resolved infrared absorption spectroscopy applied to photoinduced reactions: how and why

Alberto Mezzetti, Josefine Schnee, Andrea Lapini, Mariangela Di Donato

Photochemical & Photobiological Sciences , 2022, 21 (4), pp.557-584. ⟨10.1007/s43630-022-00180-9⟩. ⟨hal-04025534⟩

• Article dans une revue

Kinetic study of the hydrodesulfurization of dibenzothiophene over molybdenum carbides supported on functionalized carbon black composite Influence of indole

A. Hynaux, Celine Sayag, S. Suppan, J. Trawczynski, M. H. Lewandowski, A. Szymanska-Kolasa, G. Djéga-Mariadassou

Different carbon black composite (CBC) supported molybdenum carbides were synthesized. The support was functionalized with nitric acid at different pH of the impregnation solution (pH 5.2; 0), in order to improve the active phase dispersion. After characterization of these supported catalysts, the…

Applied Catalysis B: Environmental, 2006, 72, pp.62-70. ⟨10.1016/j.apcatb.2006.09.019⟩. ⟨hal-00128025⟩

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Hydrodenitrogenation of indole over Mo2C catalyst: Insights into mechanistic events through DFT modeling

Witold Piskorz, Grzegorz Adamski, Andrzej Kotarba, Zbigniew Sojka, Céline Sayag, G. Djéga-Mariadassou

The molecular reaction mechanism of hydrodenitrogenation of indole was studied using density-functional theory calculations of the adsorbed o-ethylaniline surrounded by mobile hydrogen atoms. It was found that the hydrogenation of o-ethylaniline occurs through two steps: consisting in…

Catalysis Today, 2006, 119, pp.39-43. ⟨10.1016/j.cattod.2006.08.050⟩. ⟨hal-00128043⟩

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Evidence for Rh electron-deficient atoms (Rhdelta+) as the catalytic species for CO oxidation when supported on Ce0.68Zr0.32O2: a combined N2-FTIR, benzene hydrogenation and kinetic study

Céline Fontaine-Gautrelet, Jean-Marc Krafft, Gérald Djéga-Mariadassou, Cyril Thomas

The characterization of two low-loaded Rh(wt%)/Ce0.68Zr0.32O2 samples (Rh(0.29)/CZ and Rh(0.32)/CZ) was performed via N2-FTIR and benzene hydrogenation before being investigated for CO oxidation activity and kinetics. N2-FTIR allows characterization of both RhΔ+ (νN2 = 2295 cm-1) and Rh0 (νN2 =…

Journal of Catalysis, 2007, 247, pp.34-42. ⟨10.1016/j.jcat.2007.01.005⟩. ⟨hal-00157019⟩