Laboratoire de réactivité de surface

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  • Article dans une revue

Comparison of molybdenum carbide and tungsten carbide for the hydrodesulfurization of dibenzothiophene

Agnieszka Szymanska-Kolasa, Marek Lewandowski, Celine Sayag, G. Djéga-Mariadassou

The molybdenum and tungsten carbides (Mo2C and W2C) were synthesized, characterized and tested in hydrodesulfurization (HDS) of dibenzothiophene (DBT). The phase purity of these catalysts was established by X-ray diffraction (XRD), and the surface properties were determined by N2 BET specific…

Catalysis Today, 2006, 119, pp.7-12. ⟨10.1016/j.cattod.2006.08.021⟩. ⟨hal-00128084⟩

  • Article dans une revue

PEDOT nanostructures synthesized in hexagonal mesophases

Srabanti Ghosh, Hynd Remita, Laurence Ramos, Alexandre Dazzi, Ariane Deniset-Besseau, Patricia Beaunier, Fabrice Goubard, Pierre-Henri Aubert, François Brisset, Samy Remita

We describe a single step preparation of nanostructures of poly(3,4-ethylenedioxythiophene), PEDOT, in the hydrophobic domains of cationic surfactant-based hexagonal mesophases via chemical oxidative polymerization of EDOT monomers using FeCl3 as an oxidizing agent. After polymerization, the…

New Journal of Chemistry, 2014, 38 (3), pp.1106-1115. ⟨10.1039/C3NJ01349A⟩. ⟨hal-01117164⟩

  • Article dans une revue

Iron topochemistry and surface reactivity of amphibole asbestos: relations with in vitro toxicity

A. Pacella, Giovanni B. Andreozzi, Jeanine Fournier, Lorenzo Stievano, F. Giantomassi, Guendalina Lucarini, Maria Rita Rippo, A. Pugnaloni

Chemical reactivity of asbestos tremolite from Italy and USA localities and Union Internationale Contre le Cancer (UICC) crocidolite was studied in relation to Fe content, oxidation state, and structural coordination. Direct correlation between amount of Fe2+ at the exposed M(1) and M(2) sites of…

Analytical and Bioanalytical Chemistry, 2011, 402, pp.871-881. ⟨10.1007/s00216-011-5525-y⟩. ⟨hal-00687590⟩

  • Article dans une revue

Design of model tokamak particles for future toxicity studies: Morphology and physical characterization

E. Bernard, F. Jambon, I. Georges, M. Sanles Sobrido, Jérôme Rose, N. Herlin-Boime, F. Miserque, P. Beaunier, D. Vrel, S. Dine, E. Hodille, J. Chêne, S. Garcia-Argote, G. Pieters, S. Peillon, F. Gensdarmes, G. Dinescu, T. Acsente, Chiara Uboldi, Thierry Orsière, Veronique Malard, B. Rousseau, G. Dine, Ph. Delaporte, C Grisolia

During ITER operation, it is expected that the large panel of plasma-wall interactions triggers the production of dust particles from the tungsten and beryllium first wall. These particles can be loaded with tritium (T) used as a fuel for the fusion reaction; T inventory is of prime importance for…

Fusion Engineering and Design, 2019, 145, pp.60-65. ⟨10.1016/j.fusengdes.2019.05.037⟩. ⟨hal-02169319⟩

  • Article dans une revue

Amplified plasmonic detection of DNA hybridization using doxorubicin-capped gold particles

Jolanda Spadavecchia, Ramesh Perumal, Alexandre Barras, Joël Lyskawa, Patrice Woisel, William Laure, Claire-Marie Pradier, Rabah Boukherroub, Sabine Szunerits

We show in this article that doxorubicin-modified gold nanoparticles (Au NP-DOX) can be used for the post-amplification of the wavelength shift of localized surface plasmon resonance (LSPR) signals after DNA hybridization events. We take advantage of the intercalation properties of DOX with guanine…

Analyst, 2013, 139, pp.157-164. ⟨10.1039/c3an01794j⟩. ⟨hal-01044451⟩

  • Article dans une revue

Influence of the nature and environment of manganese in Mn-BEA zeolites on NO conversion in selective catalytic reduction with ammonia

Rafal Baran, L. Valentin, J.-M. Krafft, T. Grzybek, P. Glatzel, Stanislaw Dzwigaj

Manganese-containing BEA zeolites, MnxSiBEA (x = 1–4 wt %) and Mn(I.E.)AlBEA, were prepared by a two-step postsynthesis method and a conventional wet ion-exchange, respectively, and applied as catalysts in the selective catalytic reduction of NO with ammonia (NH3-SCR). The physicochemical analysis…

Physical Chemistry Chemical Physics, 2017, 176 (1), pp.229-233. ⟨10.1039/C7CP02096A⟩. ⟨hal-01527245⟩

  • Article dans une revue

Importance, features and uses of metal oxide catalysts in heterogeneous catalysis

Jacques C. Védrine

This short review paper aims at assembling the present state of the art of the multiuses of metal oxides in heterogeneous catalysis, concerning liquid and gaseous phases of the reactant mixtures on solid catalysts. It includes the description of the main types of metal oxide catalysts, of their…

Chinese Journal of Catalysis, 2019, 40 (11), pp.1627-1636. ⟨10.1016/S1872-2067(18)63162-6⟩. ⟨hal-02405087⟩

  • Article dans une revue

Supramolecular chiral self-assemblies of Gly–Pro dipeptides on metallic fcc(110) surfaces

C. Methivier, H. Cruguel, C.-M. Pradier, V. Humblot

Adsorption of the Glycine-Proline (Gly-Pro) dipeptide has been investigated using surface science complementary techniques on Au(110) and Ag(110), showing some interesting differences both in the chemical form and surface organization of the adsorbed peptide. On Au(110), Gly-Pro mainly adsorbs in…

Faraday Discussions, 2017, 204, pp.69-81. ⟨10.1039/c7fd00116a⟩. ⟨hal-01651983⟩

  • Article dans une revue

Controlling C−OAryl Hydrogenolysis vs Aryl Hydrogenation in Lignin Model Depolymerization Using Ni‐, Rh‐ or Ni/Rh‐based Silica Catalysts

Rita Raachini, Ferdaous Ben Romdhane, Capucine Sassoye, Maya Boutros, Franck Launay

Abstract This paper focuses on the hydrogenolysis of 2‐phenoxy‐1‐phenylethanone, modelling a pre‐oxidized form of lignin using five catalysts of similar metal content, prepared by impregnation of Ni(II), Rh(III) and both metals onto Aerosil‐380 in the presence of NH 3 , followed by a reduction step…

ChemCatChem, 2023, ⟨10.1002/cctc.202300948⟩. ⟨hal-04391575⟩

  • Article dans une revue

Plastic waste recycling via pyrolysis: A bibliometric survey and literature review

Sabino Armenise, Wong Syieluing, José M Ramírez-Velásquez, Franck Launay, Daniel Wuebben, Norzita Ngadi, Joaquín Rams, Marta Muñoz

Plastic materials have been crucial to the development of science, technology, and almost all aspects of modern progress since the mid-twentieth century. However, the increasingly unsustainable culture of plastic consumption and the accumulation of plastics in landfills, oceans, and broader…

Journal of Analytical and Applied Pyrolysis, 2021, 158, pp.105265. ⟨10.1016/j.jaap.2021.105265⟩. ⟨hal-03351527⟩