• Article dans une revue

Characterisation and Reactivity of Oxygen Species at the Surface of Metal Oxides

M. Anpo, Guylène Costentin, E. Giamello, H. Lauron-Pernot, Z. Sojka

Surface reactive oxygen species play a fundamental role in selective oxidation and combustion reactions catalyzed by metal oxides. Unravelling the nature of these transient species, and understanding the details of both their electronic structure and reactivity has been for decades one of the prime…

Journal of Catalysis, 2021, 393, pp.259-280. ⟨10.1016/j.jcat.2020.10.011⟩. ⟨hal-03223789⟩

• 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⟩

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Atomic Scale Observation of the Structural Dynamics of Supported Gold Nanocatalysts under 1,3‐Butadiene by in situ Environmental Transmission Electron Microscopy

Abdallah Nassereddine, Laurent Delannoy, Christian Ricolleau, Catherine Louis, Alloyeau D., Guillaume Wang, Qing Wang, Hazar Guesmi, Jaysen Nelayah

Supported gold catalysts have been reported to exhibit exceptional selectivity towards the desirable product, an alkene, in chemoselective hydrogenation of highly unsaturated alkynes and alkadienes. However, insights on the interactions between the gold nanoparticles and the 1,3‐butadiene…

ChemCatChem, 2023, 15 (15), pp.e202300434. ⟨10.1002/cctc.202300434⟩. ⟨hal-04210993⟩

• 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⟩

• 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

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⟩

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CO2-assisted Dehydrogenation of Propane to Propene over Zn-BEA Zeolites: Impact of Acid-Base Characteristics on Catalytic Performance

Svitlana Orlyk, Pavlo Kyriienko, Andriy Kapran, Valeriy Chedryk, Dmytro Balakin, Jacek Gurgul, Yannick Millot, Stanislaw Dzwigaj

The research results about the influence of BEA zeolite preliminary dealumination on the acid-base characteristics and catalytic performance of 1%Zn-BEA compositions in propane dehydrogenation with CO2 are presented. The catalyst samples, prepared by a two-step post-synthesis procedure, involving…

Catalysts, 2023, 13 (4), pp.681. ⟨10.3390/catal13040681⟩. ⟨hal-04201435⟩

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Influence of Cu on the catalytic activity of FeBEA zeolites in SCR of NO with NH 3

Paweł Boroń, Lucjan Chmielarz, Stanislaw Dzwigaj

Two series of Fe and/or Cu containing BEA zeolites were prepared by different procedures: two-step postsynthesis method (FexSiBEA, CuxSiBEA and FexCuxSiBEA) and conventional wet impregnation (FexHAlBEA, CuxHAlBEA and FexCuxHAlBEA) (x = 1.0 Fe or Cu wt%). Modification of BEA zeolite resulted in the…

Applied Catalysis B: Environmental, 2015, 168-169, pp.377-384. ⟨10.1016/j.apcatb.2014.12.052⟩. ⟨hal-01110190⟩

• Communication dans un congrès

Hydrothermal stability of alumina: role of inorganic dopants and identification of reactive sites

Jane Abi Aad, Fabrice Diehl, Mathieu Michau, Philippe Courty, Dominique Decottignies, E. Marceau, Xavier Carrier

12th International Symposium on the Preparation of Heterogeneous Catalysts (PREPA12), Jul 2018, Louvain-la-Neuve, Belgium. ⟨hal-03515126⟩

• Communication dans un congrès

Mesoporous alumina of controlled pore size obtained by surface alumination of pure silica SBA 15

Emmanuel de La Rochefoucauld, Xavier Carrier, Jean-Marc Krafft, Juliette Blanchard

Silica-alumina oxide supports were synthesized by surface alumination of mesoporous silica SBA-15 with Al isopropoxide in organic solvents. These materials were characterised by N2 adsorption-desorption isotherms, XRD, 27Al NMR and cumene cracking. The chemical nature of the surface was probed by…

Scientific Bases for the Preparation of Heterogeneous Catalysts, Proceedings of the 9th International Symposium, 2006, France. pp.13-20. ⟨hal-00096788⟩