Laboratoire de réactivité de surface

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  • Article dans une revue

Ce- and Y-Modified Double-Layered Hydroxides as Catalysts for Dry Reforming of Methane: On the Effect of Yttrium Promotion

Katarzyna Świrk, Magnus Rønning, Monika Motak, Patricia Beaunier, Patrick da Costa, Teresa Grzybek

Ce- and Y-promoted double-layered hydroxides were synthesized and tested in dry reforming of methane (CH4/CO2 = 1/1). The characterization of the catalysts was performed using X-ray fluorescence (XRF), X-ray diffraction (XRD), N2 sorption, temperature-programmed reduction in H2 (TPR-H2),…

Catalysts, 2019, 9 (1), pp.56. ⟨10.3390/catal9010056⟩. ⟨hal-02057457⟩

  • Article dans une revue

Phase selective synthesis of nickel silicide nanocrystals in molten salts for electrocatalysis of the oxygen evolution reaction

Ram Kumar, Mounib Bahri, Yang Song, Francisco Gonell, Cyril Thomas, Ovidiu Ersen, Clément Sanchez, Christel Laberty-Robert, David Portehault

We report phase selective synthesis of intermetallic nickel silicide nanocrystals in inorganic molten salts. NiSi and Ni2Si nanocrystals are obtained by reacting a nickel (II) salt and sodium silicide Na4Si4 in the molten LiI-KI inorganic eutectic salt mixture. We report that nickel silicide…

Nanoscale, 2020, 12 (28), pp.15209-15213. ⟨10.1039/D0NR04284F⟩. ⟨hal-02923099⟩

  • Article dans une revue

Catalytic behavior of copper–amine complex supported on mesoporous silica SBA-15 toward mono-Aza-Michael addition: role of amine groups

Aboubakr Hakiki, Riad Mustpha Kerbadou, Bouhadjar Boukoussa, Hadjira Habib Zahmani, Franck Launay, Alain Pailleret, Françoise Pillier, Salih Hacini, Abdelkader Bengueddach, Rachida Hamacha

This work concerns the preparation and modification of mesoporous silica SBA-15 with different amine-copper complexes in order to study their impact on the catalytic behavior via Aza Michael addition. Firstly, SBA-15 was prepared hydrothermally, then functionalized by mono-, di- and tri-amine, and…

Journal of Inorganic and Organometallic Polymers and Materials, 2019, 29 (5), pp.1773-1784. ⟨10.1007/s10904-019-01139-7⟩. ⟨hal-02280716⟩

  • Article dans une revue

Probing Acid Base Properties in Group V Aluminum Containing Zeolites

A. Wojtaszek, Maria Ziolek, Frederik Tielens

The stability and acid base properties of group V Al containing zeolites have been investigated using a combination of experiment and theory. Using periodic density functional theory for a systematic investigation on a series of model zeolites, it is shown that the XdO group is more stabilized for…

Journal of Physical Chemistry C, 2011, 116, pp.2462-2468. ⟨10.1021/jp208638k⟩. ⟨hal-00750009⟩

  • Chapitre d'ouvrage

Aerobic Selective Oxidation of Alcohols and Alkanes over Hydroxyapatite-Based Catalysts

Guylène Costentin, Franck Launay

Selective oxidation catalysis is of prime importance for the production of many key intermediates. The control of selectivity in the presence of gaseous oxygen is quite challenging and requires the development of efficient catalysts. Thanks to their large composition range, resulting from the…

Doan Pham Minh. Design and Applications of Hydroxyapatite-Based Catalysts, Wiley, 2022, ⟨10.1002/9783527830190.ch6⟩. ⟨hal-03727897⟩

  • Article dans une revue

Conversion of xylene over mordenites: an operando infrared spectroscopy study of the effect of Na+

Pascale Massiani, Olivier Marie, Frédéric Thibault-Starzyk

A series of progressively proton-exchanged sodium mordenite samples was studied by operando infrared spectroscopy during xylene conversion. This unique, powerful tool allowed us to characterize the species adsorbed to the surface during catalysis and to follow the evolution of the active sites as…

Journal of Catalysis, 2004, 230, pp.28-37. ⟨hal-00126974⟩

  • Communication dans un congrès

Comparing the mechanism of urea and ammonia electro-oxidation reactions on Ni-based catalysts

Sophia Akkari, Carlos M Sánchez-Sánchez, Vincent Vivier

In recent decades, special attention has been paid to the electrochemical oxidation of organic compounds, such as urea (H2NCONH2) from urine, in order to avoid their natural degradation into detrimental products, as well as to produce energy by using fuel cells [1]. Its presence in sewages and its…

Journées d' Electrochimie 2022 (JE2022), Société Chimique de France (SCF) subdivision électrochimie, Jul 2022, Mons, Belgium. ⟨hal-03954211⟩

  • Article dans une revue

Engineering of Antimicrobial Surfaces by Using Temporin Analogs to Tune the Biocidal/antiadhesive Effect

Pierre-Carl Oger, Christophe Piesse, Ali Ladram, Vincent Humblot

Proliferation of resistant bacteria on biomaterials is a major problem leading to nosocomial infections. Due to their broad-spectrum activity and their ability to disrupt bacterial membranes through a rapid membranolytic mechanism, antimicrobial peptides (AMPs) are less susceptible to the…

Molecules, 2019, 24 (4), pp.814. ⟨10.3390/molecules24040814⟩. ⟨hal-02052750⟩

  • Article dans une revue

Direct grafting of ethylene sulfide onto silicic acid magadiite

Michelle Menezes de Oliveira, Marcia Maria Fernandes, Maria Gardennia Fonseca, Edson Cavalcanti da Silva Filho, Antonio Gouveia de Souza, Fabrice Gaslain, Maguy Jaber

Acidic magadiite (HMag) was directly reacted with ethylene sulfide (ES) under various controlled conditions producing an intercalated hybrid silicate (MagS). The sodium, acidic and modified magadiites were characterized using elemental analysis, thermogravimetric analysis (TGA/DTG), infrared…

Microporous and Mesoporous Materials, 2014, 196, pp.292-299. ⟨10.1016/j.micromeso.2014.05.010⟩. ⟨hal-01018650⟩

  • Article dans une revue

EIS investigation of zinc dissolution in aerated sulphate medium. Part II: zinc coatings

Chantal Cachet, F. Ganne, Suzanne Joiret, Georges Maurin, J. Petitjean, Vincent Vivier, Robert Wiart

The kinetics of anodic dissolution and corrosion of zinc coatings deposited onto steel sheet either by electrodeposition or by hot dipping are investigated by electrochemical impedance spectroscopy in aerated sulfate medium. The results are compared with those obtained previously on pure bulk zinc…

Electrochimica Acta, 2002, 47 (21), pp.3409-3422. ⟨10.1016/S0013-4686(02)00277-3⟩. ⟨hal-04219844⟩