• 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⟩

• Communication dans un congrès

Photochemistry of organic molecules in the Solar System: experimental studies outside the International Space Station. The cases of glycine, and nucleobases

Hervé Cottin, Giovanni Strazzulla, M. Dobrijevic, Frances Westall, Gaelle Coussot, A. Le Postollec, Nicolas Fray, Didier Chaput, Richard C. Quinn, . Andrew Mattioda, Giuseppe Baratta, Mario Accolla, Thomas Georgelin, Fabien Stalport, Laura Rouquette, Cyril Szopa, Kafila Saiagh, Jodie Bellila, Katia Grira, Andreas Elsaesser, Nathalie Carrasco, Avinash-Vicholous Dass, M. E. Palumbo

Solar UV radiation is a major source of energy for initiating chemical evolution towards complex organic structures, but it can also photo-dissociate even the most complex molecules. Thus, solar UV can erase the organic traces of past life at the surface of planets, such as Mars, destroy organic…

42nd COSPAR Scientific Assembly, Jul 2018, Pasadena, Californie, United States. ⟨hal-01901917⟩

• Article dans une revue

Potential Role of Inorganic Confined Environments in Prebiotic Phosphorylation

Avinash Vicholous Dass, Maguy Jaber, André Brack, Frédéric Foucher, Terence P Kee, Thomas Georgelin, Frances Westall

A concise outlook on the potential role of confinement in phosphorylation and phosphate condensation pertaining to prebiotic chemistry is presented. Inorganic confinement is a relatively uncharted domain in studies concerning prebiotic chemistry, and even more so in terms of experimentation.…

Life, 2018, 8 (1), pp.7. ⟨10.3390/life8010007⟩. ⟨hal-01733453⟩

• Article dans une revue

A Hydrothermal-Sedimentary Context for the Origin of Life

Frances Westall, Keyron Hickman-Lewis, Nancy Hinman, Pascale Gautret, Kathleen A Campbell, Jean-Gabriel Bréhéret, Frédéric Foucher, Axelle Hubert, Stephanie Sorieul, Avinash Vicholous Dass, Terence P. Kee, Thomas Georgelin, André Brack

Critical to the origin of life are the ingredients of life, of course, but also the physical and chemical conditions in which prebiotic chemical reactions can take place. These factors place constraints on the types of Hadean environment in which life could have emerged. Many locations, ranging…

Astrobiology, 2018, 18 (3), pp.259-293. ⟨10.1089/ast.2017.1680⟩. ⟨hal-01740060⟩

• 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⟩