• Article dans une revue

Chiral self-assemblies of amino-acid molecules: D- and L-methionine on Au(111) surface

Ahmed Naitabdi, Vincent Humblot

Spontaneous self-assembly into chiral well-ordered two-dimensional molecular film at room temperature has been evidenced using the scanning tunneling microscopy for the growth of two enantiomerically pure L- and D-methionine on Au(111) surface. From the x-ray photoelectron spectroscopy measurements…

Applied Physics Letters, 2010, 97 (22), pp.223112-1-223112-3. ⟨10.1063/1.3524229⟩. ⟨hal-00604785⟩

• Rapport

Chapitre 5 « Qu’en pensent les citoyens ? » Dossier thématique "Déprogrammation

Cyril Hazif-Thomas, Laetitia Marcucci, Jacques Lagarrigue

• Article dans une revue

Experimental evidence of NO SCR mechanism in the presence of the BEA zeolite with framework and extra-framework cobalt species

Paweł Boroń, Lucjan Chmielarz, Barbara Gil, Bartosz Marszałek, Stanislaw Dzwigaj

Temperature-programmed desorption (TPD), temperature-programmed surface reaction (TPSR) and stop flow-TPD techniques as well as FT-IR spectroscopy of pre-adsorbed NH3 and NO are applied to characterize active sites present in Co-containing BEA zeolites. Cobalt is introduced into BEA zeolite by…

Applied Catalysis B: Environmental, 2016, 198, pp.457-470. ⟨10.1016/j.apcatb.2016.06.012⟩. ⟨hal-01329568⟩

• Article dans une revue

Complementarity of Density Functional Theory and Nuclear Magnetic Resonance Tools To Probe the Nano-Layered Silicates Surface Chemistry and Morphology

Mathilde Poirier, Yannick Millot, Elisa Silva Gomes, Maguy Jaber, Virginie Herledan, Guillaume Laugel, Pierre Micoud, François Martin, Hélène Lauron-Pernot, Hervé Toulhoat

By combining experimental, spectroscopic, structural, and physical characterizations and extensive density functional theory simulations, unprecedented insight is gained on the local surface properties of synthetic talc nanoparticles, their structure, morphology and particle size distribution.…

Journal of Physical Chemistry C, 2020, 124 (1), pp.267-286. ⟨10.1021/acs.jpcc.9b05903⟩. ⟨hal-02457727⟩

• Article dans une revue

Ethylene production from diluted bioethanol solutions

Ilenia Rossetti, Matteo Compagnoni, Giorgia de Guido, Laura A. Pellegrini, Gianguido Ramis, Stanislaw Dzwigaj

Ethylene production by ethanol dehydration has been investigated over a set of zeolites with BEA structure in acidic form (HAlBEA). The effect on Ni addition (up to 0.03 g/g (3 mass%)) is explored as a means to improve ethylene selectivity limiting the formation of heavier byproducts. The reaction…

Canadian Journal of Chemical Engineering, 2017, 95 (9), pp.1752 - 1759. ⟨10.1002/cjce.22828⟩. ⟨hal-01651993⟩

• Article dans une revue

Deciphering pathological remodelling of the human cartilage extracellular matrix in osteoarthritis at the supramolecular level

Ilhem Lilia Jaabar, Pauline Cornette, Antoine Miche, Kristell Wanherdrick, Vincent Dupres, François-Paul Ehkirch, Adeline Cambon Binder, Francis Berenbaum, Xavier Houard, Jessem Landoulsi

Osteoarthritis induces a combination of chemical, structural and nanomechanical changes to collagen fibrils and aggrecan aggregates, the main building blocks of cartilage ECM, that may be mimicked by specific enzymatic reactions.

Nanoscale, 2022, 14 (24), pp.8691-8708. ⟨10.1039/d2nr00474g⟩. ⟨hal-03986333⟩

• Article dans une revue

Catalytic activity and thermostability of enzymes immobilized on silanized surface: Influence of the crosslinking agent

Nesrine Aissaoui, Jessem Landoulsi, Latifa Bergaoui, Souhir Boujday, Jean-François Lambert

In this work, we investigate the influence of crosslinkers on the operational and heat stability of immobilized enzymes on a silanized silicon surface. To this end, glucose-6-phosphate dehydrogenase (G6PDH), a model multimeric enzyme, was attached through bifunctional crosslinkers able to bind…

Enzyme and Microbial Technology, 2013, 52 (6-7), pp.336-43. ⟨10.1016/j.enzmictec.2013.02.018⟩. ⟨hal-01132676⟩

• Article dans une revue

What do vanadium framework sites look like in redox model silicate zeolites?

Frederik Tielens, Monica Calatayud, Stanislaw Dzwigaj, Michel Che

Ab initio periodic DFT Calculations on the structural and energy properties of different model vanadium framework sites in vanadium-substituted zeolites containing sodalite cavities are presented and related to experimental FTIR measurements on V containing SiBEA zeolite. The vanadium framework…

Microporous and Mesoporous Materials, 2009, 119 (1-3), pp.137-143. ⟨10.1016/j.micromeso.2008.10.007⟩. ⟨hal-01361361⟩

• Article dans une revue

Nature of vanadium species in V substituted zeolites: A combined experimental and theoretical study

M. Trejda, M. Ziolek, S. Dzwigaj, Frederik Tielens

The nature of vanadium species in V substituted zeolites is determined by combined experimental (XRD, FTIR, DR UV-vis) and theoretical (periodic DFT Calculations) Study. The introduction of V ions in lattice sites of SiBEA zeolite is evidenced by XRD and FTIR spectroscopy. The state of vanadium is…

Catalysis Today, 2008, 139 (3), pp.221-226. ⟨10.1016/j.cattod.2008.04.007⟩. ⟨hal-01361370⟩

• Article dans une revue

Reactivity of gas-phase, crystal and supported V2O5 systems studied using density functional theory based reactivity indices

M. Calatayud, Frederik Tielens, F. de Proft

The existence of stable V2O5 compounds as gas-phase cluster, single crystal or as supported catalyst has motivated the present work aiming at characterizing the chemical reactivity of the different aggregated moieties. We apply the concepts of electrostatic potential and Fukui function, based on…

Chemical Physics Letters, 2008, 456 (1-3), pp.59-63. ⟨10.1016/j.cplett.2008.03.007⟩. ⟨hal-01361372⟩