• Article dans une revue

One-pot synthesis of a new generation of hybrid bisphosphonate polyoxometalate gold nanoparticles as antibiofilm agents

S. Tomane, E. López-Maya, S. Boujday, V. Humblot, J. Marrot, N. Rabasso, J. Castells-Gil, C. Sicard, Anne Dolbecq, P. Mialane, A Vallée

A reduced polyoxovanadate functionalized with bisphosphonate molecules was synthesized and used to prepare in one step hybrid organic-inorganic polyoxometalate decorated gold nanoparticles. These new composites were shown to strongly inhibit P. aeruginosa and S. epidermidis biofilms growth, the…

Nanoscale Advances, 2019, 1 (9), pp.3400-3405. ⟨10.1039/c9na00401g⟩. ⟨hal-02335689⟩

• Article dans une revue

Preparation of Co 2+ /ZSM5 Catalysts by Solid-State Reaction: Influence of the Precursor on Cobalt Speciation

M. Mhamdi, E. Marceau, S. Khaddar-Zine, A. Ghorbel, M. Che, Y. Ben Taarit, F. Villain

Co2+/ZSM5 catalysts (Co/Al = 1, overstoichiometric ratio) have been prepd. by solid-state reaction at 500 ↓C in argon from H-ZSM5 and four Co(II) precursors: formate, nitrate, chloride and acetate. Co3O4 particles supported by the zeolite grains are the only cobalt-contg. phases detected when…

Zeitschrift für Physikalische Chemie, 2005, 219 (7-2005), pp.963-978. ⟨10.1524/zpch.219.7.963.67087⟩. ⟨hal-03032198⟩

• Article dans une revue

Direct d-Glucose Oxidation over Noble Metal Nanoparticles Introduced on Polymer and Inorganic Supports

Valentina Matveeva, Alexey Bykov, Valentin Doluda, Mikhail Sulman, Narendra Kumar, Stanislaw Dzwigaj, E. Marceau, Leonid Kustov, Olga Tkachenko, Esther Sulman

Topics in Catalysis, 2009, 52 (4), pp.387-393. ⟨10.1007/s11244-008-9171-3⟩. ⟨hal-03032168⟩

• Article dans une revue

Effect of nanocrystallization on the structure and the magnetic properties of Nd–Fe–Co–Al–B glassy alloy

Lotfi Bessais, C. Djéga-Mariadassou, P. Beaunier

Nd 40 Fe 30 Co 15 Al 10 B 5 bulk amorphous prepared by high energy milling shows a coercivity of 650kA∕m with a Curie temperature of 645K. The controlled nanocrystallization enhances the coercivity to 1600kA∕m and the remanence ratio is equal to 0.59. The coexistence of two crystalline magnetic…

Journal of Applied Physics, 2006, 99 (9), ⟨10.1063/1.2195367⟩. ⟨hal-04232420⟩

• Article dans une revue

Effect of iron impurities on the catalytic activity of BEA, MOR and MFI zeolites in the SCR of NO by ethanol

Stanislaw Dzwigaj, Janusz Janas, Wojciech Rojek, Lorenzo Stievano, F. E. Wagner, Frédéric Averseng, Michel Che

Applied Catalysis B: Environmental, 2009, 86 (1-2), pp.45-52. ⟨10.1016/j.apcatb.2008.07.017⟩. ⟨hal-00799213⟩

• Communication dans un congrès

Nanocastings" : silices nanoporeuses SBA en tant que moules pour obtenir des nano-objets (particules-fils) d'oxydes des métaux de transition

Marianne Imperor-Clerc, Dominique Bazin, Vincent Dupuis, Regine Perzynski, Virginie Escax, Anne Davidson

Colloque nanohybrides2 (GDR 2486), Jun 2005, Autrans, France. ⟨hal-00172347⟩

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Oxidative Dehydrogenation of Propane on Hydroxyapatite‐Supported Cobalt Catalysts

Corentin Reynaud, Cyril Thomas, Dalil Brouri, Josefine Schnee, Sandra Casale, Guylène Costentin

Hydroxyapatite (HAp)‐supported cobalt catalysts have been evaluated in the oxidative dehydrogenation of propane to propene (ODHP). The morphology of the HAp supports and the cobalt immobilization mechanisms strongly influence the surface accessibility of cobalt species and their dispersion. A…

ChemCatChem, 2025, 17 (10), pp.e202402100. ⟨10.1002/cctc.202402100⟩. ⟨hal-05370167⟩

• Article dans une revue

Influence of iron state and acidity of zeolites on the catalytic activity of FeHBEA, FeHZSM-5 and FeHMOR in SCR of NO with NH3 and N2O decomposition

Paweł Boroń, Lucjan Chmielarz, Jacek Gurgul, Kazimierz Łątka, Barbara Gil, Bartosz Marszałek, Stanislaw Dzwigaj

Microporous and Mesoporous Materials, 2015, 203, pp.73-85. ⟨10.1016/j.micromeso.2014.10.023⟩. ⟨hal-01128203⟩

• Article dans une revue

Monitoring of the Plasmon Resonance of Gold Nanoparticles in Au/TiO2 Catalyst under Oxidative and Reducing Atmospheres

Yves Borensztein, Laurent Delannoy, Anis Djedidi, Ruben G. Barrera, Catherine Louis

Diffuse optical reflectance of Au/TiO2 powder catalysts, prepared by the deposition-precipitation method, is measured in the UV-visible range in controlled atmosphere. An intense optical absorption observed around 550 nm is interpreted by the excitation of plasmon resonances in the 4 nm gold…

Journal of Physical Chemistry C, 2010, 114, pp.9008. ⟨10.1021/jp101248h⟩. ⟨hal-00490473⟩

• Article dans une revue

HRTEM and STEM-HAADF characterisation of Au-TiO2 and Au-Al2O3 catalysts for a better understanding of the parameters influencing their properties in CO oxidation

L. Delannoy, R.L. Chantry, S. Casale, Z.Y. Li, Yves Borensztein, C. Louis

Gold catalysts supported on titania (Au-TiO2) and alumina (Au-Al2O3) were prepared by deposition- precipitation with urea and then activated before characterisation and reaction in CO oxidation, either by calcination in air at 500 1C or reduction under H2 at 300 1C. Gold nanoparticles with average…

Physical Chemistry Chemical Physics, 2013, 15, pp.3473-3479. ⟨10.1039/c2cp44157h⟩. ⟨hal-00811527⟩