• Article dans une revue

TiO2-supported Rh nanoparticles: From green catalyst preparation to application in arene hydrogenation in neat water

Claudie Hubert, Audrey Denicourt-Nowicki, Patricia Beaunier, Alain Roucoux

TiO2-supported Rh(0) nanoparticles were prepd. by an easy method under mild conditions in neat water. They proved to be highly active catalysts for arene hydrogenation in water with TOFs up to 33 333 h-1. [on SciFinder(R)]

Green Chemistry, 2010, 12 (7), pp.1167-1170. ⟨10.1039/C004079G⟩. ⟨hal-00604723⟩

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Investigation of the role of stabilizingagentmolecules in the heterogeneousnucleation of rhodium(0) nanoparticles onto Al-SBA-15 supports

Rita Sassine, E. Bilé-Guyonnet, Thomas Onfroy, Audrey Denicourt-Nowicki, Alain Roucoux, Franck Launay

Interactions of stabilizingagentmolecules (HEA16Cl) with Rh(0) particles and mesoporous aluminosilic supports were studied in rhodium(0) catalysts obtained by heterogeneousnucleation. HEA16Cl/Rh(0) proximity was indirectly demonstrated by monitoring the CO coverage of metal surface using FTIR…

Studies in Surface Science and Catalysis, 2010, 175, pp.145-152. ⟨10.1016/S0167-2991(10)75018-7⟩. ⟨hal-00759090⟩

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Life on Minerals: Binding Behaviors of Oligonucleotides on Zirconium Silicate and its Inhibitory Activity for the Self-Cleavage of Hammerhead Ribozyme

Kunio Kawamura, Jean-François Lambert, Louis Ter-Ovanessian, Jacques Vergne, Guy Hervé, Marie-Christine Maurel

The role of minerals in the chemical evolution of RNA molecules is an important issue when considering the early stage of the Hadean Earth. In particular, the interaction between functional ribozymes and ancient minerals under simulated primitive conditions is a recent research focus. We are…

Life, 2022, The Origin and Early Evolution of Life: Prebiotic Systems Chemistry Perspective, 12 (11), pp.1689. ⟨10.3390/life12111689⟩. ⟨hal-03828234⟩

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Understanding of the oxygen activation on ceriaand ceria/alumina-supported gold catalysts: a study combining 18O/16O isotopic exchange and EPR spectroscopy

Pandian Lakshmanan, Frédéric Averseng, Nicolas Bion, Laurent Delannoy, Jean-Michel Tatibouet, Catherine Louis

Gold supported on ceria or ceria-alumina mixed oxides are very active catalysts for total oxidation of a variety of molecules. The key step of the oxygen activation on such catalysts is still a matter of debate. Gold-ceria (Au/CeO2) and gold-ceria-alumina (Au/CeO2/Al2O3) catalysts were prepared by…

Gold bulletin : a quarterly review of research on gold and its applications in industry, 2013, 46, pp.233-242. ⟨10.1007/s13404-013-0103-z⟩. ⟨hal-00961263⟩

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Hierarchical Self-Assembly of Polyoxometalate-Based Organo Palladium(II) Metallomacrocycles via Electrostatic Interactions

Raphaël Salles, Benjamin Abécassis, Etienne Derat, Dalil Brouri, Aurélie Bernard, Qichun Zhang, Anna Proust, Christophe Desmarets, Guillaume Izzet

The design and synthesis of a supramolecular square composed of polyoxometalate-based hybrid donors and ethylenediamine palladium(II) nodes are reported. The structure of the metallomacrocycle scaffold was inferred by diffusion NMR, small-angle X-ray scattering (SAXS), and molecular modeling. The…

Inorganic Chemistry, 2020, 59 (4), pp.2458--2463. ⟨10.1021/acs.inorgchem.9b03333⟩. ⟨hal-02887768⟩

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Control of the hierarchical self-assembly of polyoxometalate-based metallomacrocycles by redox trigger and solvent composition

Madeleine Piot, Benjamin Abécassis, Dalil Brouri, Claire Troufflard, Anna Proust, Guillaume Izzet

Discrete metallomacrocycles are attractive scaffolds for the formation of complex supramolecular architectures with emergent properties. We herein describe the formation of hierarchical nanostructures using preformed metallomacrocycles by coordination-driven self-assembly of a covalent organic–…

Proceedings of the National Academy of Sciences of the United States of America, 2018, 115 (36), pp.8895 - 8900. ⟨10.1073/pnas.1808445115⟩. ⟨hal-01889517⟩

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A Study of Cobalt Speciation in Co/Al2O3 Catalysts Prepared from Solutions of Cobalt-Ethylenediamine Complexes

François Dumond, Eric Marceau, Michel Che

The thermal reduction of Co/Al2O3 catalysts prepared by impregnation of Co(II) nitrate generally leads to migration of cobalt ions into alumina with formation of cobalt aluminate. In order to prevent the latter, it is attempted to reduce cobalt by decomposition of supported precursor salts…

Journal of Physical Chemistry C, 2007, 111 (12), pp.4780-4789. ⟨10.1021/jp067781w⟩. ⟨hal-00143721⟩

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A systematic study of the interactions between chemical partners (metal, ligands, counterion and support) involved in the design of Al2O3-supported nickel catalysts from diamine-Ni(II) chelates

Axel Löfberg, Fabien Négrier, Eric Marceau, Michel Che, Jean-Marc Giraudon, Léon Gengembre

Journal of Physical Chemistry B, 2005, 109, pp.2836-2845. ⟨10.1021/jp0403745⟩. ⟨hal-00082980⟩

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On the reactivity of NO/N2 mixtures with aluminum surfaces: a combined PM-IRRAS and QCM investigation

Aude Delebecque, Cyril Thomas, Claire-Marie Pradier, Christophe Methivier, Hervé Paoli, Martine Carré, Eric Coffre

Abstract. The interaction of NO, and the further reactivity of oxygen, with water-passivated aluminum surfaces are investigated for the first time by in situ Polarization Modulation Infrared Reflexion Absorption Spectroscopy (PM-IRRAS) coupled with Quartz Crystal Microbalance (QCM). Chemical and…

Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2007, 602, pp.283-290. ⟨10.1016/j.susc.2007.10.035⟩. ⟨hal-00202695⟩

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Influence of the nature of the reducible support on CO oxidation kinetics of supported Rhd+ catalysts: SnO2 versus Ce0.68Zr0.32O2

Céline Fontaine-Gautrelet, Cyril Thomas, Gérald Djéga-Mariadassou

CO-O2 kinetics was studied on Rh(0.3wt%)/SnO2 and compared with that reported previously on Rh/Ce0.68Zr0.32O2. The lower oxygen mobility on SnO2 and the stronger bonding of CO with the RhΔ+ sites of Rh/SnO2, are suggested to account for the lower CO oxidation activity of Rh/SnO2 compared with that…

Topics in Catalysis, 2007, 42-43, pp.363-366. ⟨10.1007/s11244-007-0206-y⟩. ⟨hal-00157011⟩