Laboratoire de réactivité de surface

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  • Article dans une revue

An Anthropocene-Framed Transdisciplinary Dialog at the Chemistry-Energy Nexus

Mathieu S Prévot, Valeria Finelli, Xavier Carrier, Gabriele Deplano, Margherita Cavallo, Elsje Alessandra Quadrelli, Juliette Michel, Marie-Hélène Pietraru, Clément Camp, Giulia Forghieri, Anna Gagliardi, Sebastian Seidel, Antoine Missemer, Bertrand Reuillard, Barbara Centrella, Silvia Bordiga, María Grace Salamanca González, Vincent Artero, Keanu V. A. Birkelbach, Niklas von Wolff

At the energy-chemistry nexus, key molecules include carbon dioxide (CO2), hydrogen (H2), methane (CH4), and ammonia (NH3). The position of these four molecules and that of the more general family of synthetic macromolecular polymer blends (found in plastics) were cross-analyzed with the planetary…

Chemical Science, 2024, 15, pp.9054-9086. ⟨10.1039/d4sc00099d⟩. ⟨hal-04611454⟩

  • Article dans une revue

Toward redox framework single site zeolite catalysts

Stanislaw Dziwag, Michel Che

This paper concerns heterogeneous single site catalysts which are difficult to prepare because of speciation problems related to the two starting components, the solid and the metal precursor solution. A two-step post-synthesis method is used to prepare the V-SiBEA reference system, with vanadium…

Catalysis Today, 2011, 169, pp.232-241. ⟨10.1016/j.cattod.2011.01.035⟩. ⟨hal-00664504⟩

  • Article dans une revue

Active Site Design in a Core-Shell Nanostructured Catalyst for a One-Pot Oxidation Reaction

Shusuke Okada, Kohsuke Mori, Takashi Kamegawa, Michel Che, Hiromi Yamashita

Designing an active site: A new type of core-shell structured catalyst was prepared, with a uniform SiO2 core supporting Pd nanoparticles (NPs) covered with a Ti-containing mesoporous silica shell. Generated H2O2 on the inner Pd NP site could interact with the Ti oxide moieties within the mesopores…

Chemistry - A European Journal, 2011, 17 (33), pp.9047-9051. ⟨10.1002/chem.201101241⟩. ⟨hal-00663357⟩

  • Article dans une revue

Basic reactivity of CaO: investigating active sites under operating conditions

Hugo Petitjean, Celine Chizallet, Jean-Marc Krafft, Michel Che, Helene Lauron-Pernot, Guylene Costentin

A set of CaO samples was prepared from thermal decomposition of several precursors, leading to very different surface properties. During storage, CaO samples rehydrated quickly but reversibly. Before characterization, the samples were pre-treated at 1023 K under nitrogen flow to obtain CaO as the…

Physical Chemistry Chemical Physics, 2010, 12 (44), pp.14740-14748. ⟨10.1039/c0cp00855a⟩. ⟨hal-00604790⟩

  • Article dans une revue

Investigation of oxide catalysts activity in the NOx neutralization with organic reductants

W. Turek, A. Plis, Patrick da Costa, A. Krzton

Temp.-programmed desorption of NO (TPD) and temp.-programmed redn. of NO by propene and ethanol (TPSR) over the catalyst with redox properties and the structure of spinels - Co3O4 and CoFe2O4 - were investigated. The TPD expts. can det. the temp. range in which the deNOx proceeds and provide…

Applied Surface Science, 2010, 256 (17), pp.5572-5575. ⟨10.1016/j.apsusc.2009.12.149⟩. ⟨hal-00604810⟩

  • Article dans une revue

Probing acid-base sites in vanadium redox zeolites by DFT calculation and compared with FTIR results

Frederik Tielens, Stanislaw Dzwigaj

Ab initio periodic DFT calculations in combination with experimental FTIR of adsorption pyridine investigations have been used to study the acid-base properties of vanadium doped zeolite materials. It is evidenced that VO-H groups of V(V) and V(IV) framework sites are more acidic than SiO-H groups…

Catalysis Today, 2010, 152 (1-4), pp.66-69. ⟨10.1016/j.cattod.2009.09.006⟩. ⟨hal-00604806⟩

  • Article dans une revue

Advances in the preparation of supported gold catalysts: Mechanism of deposition, simplification of the procedures and relevance of the elimination of chlorine

Antoine Hugon, Nadia El Kolli, Catherine Louis

The paper focuses on the chem. mechanisms involved during the prepn. of gold catalysts supported on alumina and titania and on attempts to simplify the procedures of prepn. Three methods involving the same gold loading (1 wt%) and the same precursor, HAuCl4, were studied: impregnation in excess of…

Journal of Catalysis, 2010, 274 (2), pp.239-250. ⟨10.1016/j.jcat.2010.07.008⟩. ⟨hal-00604725⟩

  • Article dans une revue

Elaboration of antibiofilm materials by chemical grafting of an antimicrobial peptide

Jean-Fabrice Yala, Pascal Thebault, Arnaud Hequet, Vincent Humblot, Claire-Marie Pradier, Jean-Marc Berjeaud

A peptide antibiotic, gramicidin A, was covalently bound to cystamine self-assembled monolayers on gold surfaces. Each step of the surface functionalization was characterized by polarization modulation infrared reflection absorption spectroscopy and X-ray photoelectron spectroscopy. The…

Applied Microbiology and Biotechnology, 2011, 89 (3), pp.623-634. ⟨10.1007/s00253-010-2930-7⟩. ⟨hal-00602954⟩

  • Article dans une revue

A versatile approach for the immobilization of amines via copper-free "click" reaction between azido self-assembled monolayer and alkynyl Fischer carbene complex. Application to the detection of staphylococcal enterotoxin A antibody

Pratima Srivastava, Amithaba Sarkar, Sudeshna Sawoo, Amarnath Chakraborty, Piyali Dutta, Othman Bouloussa, Christophe Methivier, Claire-Marie Pradier, Souhir Boujday, Michele Salmain

A copper-free "click" reaction between an azido-terminated self-assembled monolayer (SAM) chemisorbed on planar gold-coated glass sensors and an alkynyl Fischer carbene complex yielded functionalized surfaces onto which facile and swift grafting of amine-containing molecules was achieved…

Journal of Organometallic Chemistry, 2011, 696 (5), pp.1102-1107. ⟨10.1016/j.jorganchem.2010.11.020⟩. ⟨hal-00602951⟩

  • Article dans une revue

Synthesis and grafting of a BTP derivative onto a quartz crystal microbalance for lanthanide detection

Dimitri Mercier, Nicolas Leconte, Christophe Methivier, Franck Suzenet, G?ld Guillaumet, Anne Wuillaume, Claire-Marie Pradier

The ability of bis-triazinylpyridine (BTP) molecules to complex lanthanides is well-known in solution and can be judiciously utilized to elaborate solid sensing surfaces. This was done by synthesizing a new BTP derivative and covalently anchoring it onto gold surfaces. The BTP grafting, its…

Physical Chemistry Chemical Physics, 2010, 12 (23), pp.6099-6106. ⟨10.1039/b921389a⟩. ⟨hal-00604780⟩