• Article dans une revue

Co–Ru Nanoalloy Catalysts for the Acceptorless Dehydrogenation of Alcohols

Brandon Azeredo, Tayssir Ben Ghzaiel, Ning Huang, Kamila Kaźmierczak, Wenjie Shen, Guillaume Wang, Delphine Schaming, Patricia Beaunier, Philippe Decorse, Noémie Perret, Jennifer Peron, Marion Giraud, Carine Michel, Lorette Sicard, Jean-Yves Piquemal

ACS Applied Nano Materials, 2022, 5 (4), pp.5733-5744. ⟨10.1021/acsanm.2c00764⟩. ⟨hal-03821692⟩

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Revealing Size Dependent Structural Transitions in Supported Gold Nanoparticles in Hydrogen at Atmospheric Pressure

Abdallah Nassereddine, Qing Wang, David Loffreda, Christian Ricolleau, Damien Alloyeau, Catherine Louis, Laurent Delannoy, Jaysen Nelayah, Hazar Guesmi

Small, 2021, pp.2104571. ⟨10.1002/smll.202104571⟩. ⟨hal-03367920⟩

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A Time-Resolved In Situ Quick-XAS Investigation of Thermal Activation of Fischer-Tropsch Silica-Supported Cobalt Catalysts

Hong Jingping, Eric Marceau, Andrei Y. Khodakov, Anne Griboval-Constant, Fontaine C. La, V. Briois

Chemistry - A European Journal, 2012, 18, pp.2802-2805. ⟨10.1002/chem.201103509⟩. ⟨hal-00687092⟩

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kinetics of the plasmon optical response of Au nanoparticles/TiO2 catalyst under O2 and H2 followed by differential diffuse reflectance spectroscopy

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

The changes in the optical properties of Au/TiO2 powder catalyst, prepared by the deposition-precipitation method, are measured in the visible range by use of a home-made diffuse differential reflectance spectrometer, when the ambient atmosphere is switched between H2 and O2. Two main features are…

The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2011, 63, pp.235. ⟨10.1140/epjd/e2011-10529-2⟩. ⟨hal-00648582⟩

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Influence of the state of iron on CO oxidation on FeSiBEA zeolite catalysts

Izabela Hnat, Ireneusz Kocemba, Jacek Rynkowski, Thomas Onfroy, Stanislaw Dzwigaj

The influence of the state of iron on the catalytic properties of FexSiBEA zeolite in the oxidation of CO was investigated. Various FexSiBEA zeolites (x = 0.6, 1.0, 4.0 and 10 wt%) were prepared by a two-step post synthesis method. The presence of Fe(III) in tetrahedral coordination for low Fe…

Catalysis Today, 2011, 176, pp.229-233. ⟨10.1016/j.cattod.2010.12.052⟩. ⟨hal-00664469⟩

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Optimized immobilization of gold nanoparticles on planar surfaces through alkyldithiols and their use to build 3D biosensors

Anne-Laure Morel, Rose-Marie Volmant, Christophe Methivier, Jean-Marc Krafft, Souhir Boujday, Claire-Marie Pradier

This paper describes a controlled way to immobilize gold nanoparticles on planar gold surfaces and the use of the resulting 3D platform to build up a 3D biosensor. The surface was first functionalized by grafting hexanedithiol, this molecule has 2 thiol end groups, which enables its chemical…

Colloids and Surfaces B: Biointerfaces, 2010, 81 (1), pp.304-312. ⟨10.1016/j.colsurfb.2010.07.021⟩. ⟨hal-00604782⟩

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N-Methylephedrium Salts as Chiral Surfactants for Asymmetric Hydrogenation in Neat Water with Rhodium(0) Nanocatalysts

Elodie Guyonnet Bile, Audrey Denicourt-Nowicki, Rita Sassine, Patricia Beaunier, Franck Launay, Alain Roucoux

Synthesis of a water-sol. family of optically active N-methylephedrium salts NMeEph12X I [X = Br, HCO3, (S)-lactate] that can be used as efficient protective agents of metallic nanoparticles in neat water was described. The resulting materials were evaluated in the asym. hydrogenation of…

ChemSusChem, 2010, 3 (11), pp.1276-1279. ⟨10.1002/cssc.201000206⟩. ⟨hal-00604720⟩

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Total oxidation of propene over Au/xCeO(2)-Al2O3 catalysts: Influence of the CeO2 loading and the activation treatment

Pandian Lakshmanan, Laurent Delannoy, Vincent Richard, Christophe Methivier, Claude Potvin, Catherine Louis

This study explores the reaction of oxidation of propene (1200 ppm) under excess oxygen (9%) over Au/xCeO(2)/Al2O3 catalysts (x = 1.5, 3, 5, and 10 wt% CeO2) to mimic the conditions of VOC decomposition. The present study reveals the influence of several factors that affect the oxidative…

Applied Catalysis B: Environmental, 2010, 96 (1-2), pp.117-125. ⟨10.1016/j.apcatb.2010.02.009⟩. ⟨hal-00604727⟩

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Surface Segregation of Pd from TiO2-Supported AuPd Nanoalloys under CO Oxidation Conditions Observed In situ by ETEM and DRIFTS

Laurent Delannoy, Suzanne Giorgio, Jean-Gabriel Mattei, Claude R. Henry, Nadia El Kolli, Christophe M Éthivier, Catherine Louis

A TiO2-supported AuPd bimetallic catalyst with an Au/Pd atomic ratio of 8 was prepared by deposition-precipitation with urea, and its activity in CO oxidation at room temperature was compared to the one of a monometallic Au/TiO2 catalyst. X-ray photoelectron spectroscopy (XPS) and diffuse…

ChemCatChem, 2013, pp.1-11. ⟨10.1002/cctc.201200618⟩. ⟨hal-00836230⟩

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Improved activity and stability in CO oxidation of bimetallic Au-Cu/TiO2 catalysts prepared by deposition-precipitation with urea

A. Sandoval, Catherine Louis, Rodolfo Zanello

Au-Cu bimetallic catalysts supported on TiO2 were prepared for the first time by sequential deposition-precipitation with the urea method, copper first then gold. Au-Cu catalysts with four different Au:Cu atomic ratios were synthesized (1:0.4 to 1:1.2). This method allowed quantitative deposition…

Applied Catalysis B: Environmental, 2013, 140-141, pp.363-377. ⟨10.1016/j.apcatb.2013.04.039⟩. ⟨hal-00911705⟩