Laboratoire de réactivité de surface

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  • Article dans une revue

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⟩

  • Article dans une revue

Selective Formation of Epoxylimonene Catalyzed by Phosphonyl/Arsonyl Derivatives of Trivacant Polyoxotungstates at Low Temperature

Ourania Makrygenni, Louise Vanmairis, Sabrina Taourit, Franck Launay, Alain Shum Cheong Sing, Anna Proust, Hélène Gérard, Richard Villanneau

The catalytic performances of three organophosphonyle/arsonyle derivatives of POMs were evaluated for the epoxidation of limonene in acetonitrile, using aqueous H2O2 as the oxidant. All three W-based POMs catalysts operated without any additional transition-metal ions and displayed excellent…

European Journal of Inorganic Chemistry, 2019, 2020 (7), pp.605-612. ⟨10.1002/ejic.201901152⟩. ⟨hal-02426557⟩

  • Article dans une revue

Spatially Controlled Reduction and Growth of Silver in Hollow Gold Nanoshell Particles

Lu Zhang, Peng Chen, Alexis Loiseau, Dalil Brouri, Sandra Casale, Michèle Salmain, Souhir Boujday, Bo Liedberg

Spatially controlled reactions at the nanoscale have attracted increasing interest for fundamental chemistry and for the engineering of novel functional materials. Herein, we demonstrate that pH-triggered reduction of silver ions preferentially occurs at the inner walls of porous and citrate-capped…

Journal of Physical Chemistry C, 2019, 123 (16), pp.10614-10621. ⟨10.1021/acs.jpcc.8b11864⟩. ⟨hal-02284528⟩

  • Article dans une revue

Nature of the active sites in CO oxidation on FeSiBEA zeolites

Ireneusz Kocemba, Jacek Rynkowski, Jacek Gurgul, Robert P. Socha, Kazimierz Łątka, Jean-Marc Krafft, Stanislaw Dzwigaj

FeSiBEA zeolites containing 1 wt% of iron were prepared by a two-step postsynthesis method in acidic (pH = 2.6) (Fe1.0SiBEA(w)) and alkaline (pH = 10) (Fe1.0SiBEA(p)) conditions. The structure of the studied materials, their acidity as well as the nature and environment of iron present in the…

Applied Catalysis A : General, 2016, 519, pp.16-26. ⟨10.1016/j.apcata.2016.03.025⟩. ⟨hal-01297494⟩

  • Article dans une revue

Going through the wine fining: Intimate dialogue between organics and clays

Pollyana Trigueiro, Silvia Pedetti, Baptiste Rigaud, Sebastien Balme, Jean-Marc Janot, Ieda M G Dos Santos, Régis Gougeon, Maria G Fonseca, Thomas Georgelin, Maguy Jaber

Wine chemistry inspires and challenges with its complexity and intriguing composition. In this context, the composites based on the use of a model protein, a polyphenol of interest and montmorillonite in a model hydroalcoholic solution have been studied. A set of experimental characterization…

Colloids and Surfaces B: Biointerfaces, 2018, 166, pp.79 - 88. ⟨10.1016/j.colsurfb.2018.02.060⟩. ⟨hal-01744266⟩

  • Article dans une revue

BSA and lysozyme adsorption on homoionic montmorillonite: Influence of the interlayer cation

Mathilde Lepoitevin, Maguy Jaber, Régis Guégan, Jean-Marc Janot, Philippe Dejardin, Francois Henn, Sébastien Balme

This study aims to investigate the influence of interlayer cation alkali metal series (Li+, Na+, K+, Rb+, Cs+) and alkali earth metal (Mg2 +, Ca2 +, Ba2 +) on adsorption of model proteins (lysozyme and bovine serum albumin). The localizations of both proteins and their conformational modifications…

Applied Clay Science, 2014, 95, pp.396-402. ⟨10.1016/j.clay.2014.05.003⟩. ⟨insu-01017005⟩

  • 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⟩

  • Article dans une revue

Experimental and theoretical evidences of the influence of hydrogen bonding on the catalytic activity of a series of 2-hydroxy substituted quaternary ammonium salts in the styrene oxide/CO2 coupling reaction

Catarina Carvalho Rocha, Thomas Onfroy, Julien Pilmé, Audrey Denicourt-Nowicki, Alain Roucoux, Franck Launay

Among industrial applications of CO2, the formation of cyclic carbonates from epoxides offers relevant chemical potentialities. Here, various N,N-dimethyl-N-cetyl-N-(2-hydroxyethyl)ammonium salts (HEA16X) associated with different counter-anions (X−) have been investigated as catalysts of the…

Journal of Catalysis, 2016, 333, pp.29--39. ⟨10.1016/j.jcat.2015.10.014⟩. ⟨hal-01231145⟩

  • Article dans une revue

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⟩

  • Article dans une revue

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⟩