Laboratoire de réactivité de surface

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  • Article dans une revue

Role of oxygen vacancies in the basicity of ZnO: From the model methylbutynol conversion to the ethanol transformation application

C. Drouilly, J.M. Krafft, F. Averseng, H. Lauron-Pernot, Delphine Bazer-Bachi, Céline Chizallet, V. Lecocq, Guylène Costentin

The parameters governing the basic reactivity of kadox and ex-carbonate zinc oxide samples towards alcohol conversion were investigated varying the atmosphere of pre-treatment for a model reaction, the methylbutynol (MBOH) conversion, and the ethanol conversion reaction, a transformation of…

Applied Catalysis A : General, 2012, 453, pp.121-129. ⟨10.1016/j.apcata.2012.11.045⟩. ⟨hal-00811509⟩

  • Article dans une revue

Real time monitoring of the evolution of Ni2+ environment in faujasite upon rehydration by in situ dispersive-EXAFS.

Jean-François Groust, Catherine Pommier, Lorenzo Stievano, François Villain, Christine Giorgetti, François Baudelet, Pascale Massiani

The evolution of both oxygen and framework tetrahedral shells around Ni2+ cations in faujasite upon rehydration can be described in real time thanks to in situ dispersive-EXAFS. Such type of analysis permits precise experimental description of the coordination environment of cations in zeolite…

Catalysis Letters, 2005, 102, pp.257-260. ⟨10.1007/s10562-005-5865-3⟩. ⟨hal-00020239⟩

  • Article dans une revue

Influence of the nature of the noble metal on the lean C3H6-assisted decomposition of NO on Ce0.68Zr0.32O2-supported catalysts

Cyril Thomas, Olivier Gorce, Françoise Villain, Gérald Djéga-Mariadassou

The Selective Catalytic Reduction (SCR) of NO assisted by C3H6 is investigated on Ce0.68Zr0.32O2 (CZ)-supported Platinum Group Metals (PGMs: Pd, Rh, Pt) catalysts. This study shows that the order of reactivity of the PGMs supported on CZ is: Pd Pt ≥Rh. The performances of the most active CZ-…

Journal of Molecular Catalysis A: Chemical, 2006, 249, pp.71-79. ⟨10.1016/j.molcata.2006.01.001⟩. ⟨hal-00067988⟩

  • Article dans une revue

Evidence for Rh electron-deficient atoms (Rhdelta+) as the catalytic species for CO oxidation when supported on Ce0.68Zr0.32O2: a combined N2-FTIR, benzene hydrogenation and kinetic study

Céline Fontaine-Gautrelet, Jean-Marc Krafft, Gérald Djéga-Mariadassou, Cyril Thomas

The characterization of two low-loaded Rh(wt%)/Ce0.68Zr0.32O2 samples (Rh(0.29)/CZ and Rh(0.32)/CZ) was performed via N2-FTIR and benzene hydrogenation before being investigated for CO oxidation activity and kinetics. N2-FTIR allows characterization of both RhΔ+ (νN2 = 2295 cm-1) and Rh0 (νN2 =…

Journal of Catalysis, 2007, 247, pp.34-42. ⟨10.1016/j.jcat.2007.01.005⟩. ⟨hal-00157019⟩

  • Article dans une revue

ZSM-5/SBA-15 microporous/mesoporous composites prepared by a microwave-assisted zeolitisation of Al-SBA-15 mesoporous solids

Sami Habib, Franck Launay, Henri El Zakhem, Matjaž Mazaj, Flavien Guenneau, Patricia Beaunier, Dalil Brouri, Nataša Novak Tušar, Venčeslav Kaučič, Antoine Gedeon

ZSM-5/SBA-15 composites with high textural properties were synthesised by a microwave-assisted zeolitisation of Al-SBA-15 in the presence of tetrapropylammonium bromide. The effect of the hydrothermal treatment temperature and of ammonium fluoride, often used as a catalyst, was studied. Resulting…

Materials Research Bulletin, 2013, 48, pp.1288-1295. ⟨10.1016/j.materresbull.2012.12.030⟩. ⟨hal-00912818⟩

  • Article dans une revue

UV irradiation study of a tripeptide isolated in an argon matrix: A tautomerism process evidenced by infrared and X-ray photoemission spectroscopies.

Eva Mateo-Marti, Claire-Marie Pradier

Matrix isolation is a powerful tool for studying photochemical processes occurring in isolated molecules. In this way, we characterized the chemical modifications occurring within a tri peptide molecule, IGF, when exposed to the influence of Ultraviolet (UV) irradiation. This paper first describes…

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-..], 2013, 109, pp.247-252. ⟨10.1016/j.saa.2013.02.034⟩. ⟨hal-00915960⟩

  • Communication dans un congrès

Ionic liquids as environmentally friendly corrosion inhibitors : the inhibition of mechanism of butylammonium nitrate for Al AA2024-T6

Oumaïma Gharbi, Abdelmoheiman Zakaria Benbouzid, Mai T.T. Tran, Mireille Turmine, Vincent Vivier

Ionic liquids are a promising class of solvent exhibiting a large panel of attractive physico-chemical properties, which can be of interest for energy, electrocatalysis or corrosion protection applications. Therefore, in the context of European restriction REACH regulation towards chromate-based…

72rd ISE Meeting, ISE, Aug 2021, Jeju Island, South Korea. ⟨hal-04013568⟩

  • Article dans une revue

Co-grafting of amino-poly(ethylene glycol) and Magainin I on a TiO2 surface: tests of antifouling and antibacterial activities.

Jessie Peyre, V. Humblot, C. Méthivier, J.M. Berjeaud, C.-M. Pradier

An antimicrobial peptide, Magainin I (Mag), was grafted to a titanium oxide surface, via an antiadhesive poly(ethylene glycol) (PEG) cross-linker. The latter plays a 2-fold part, being antiadhesive, and enabling the covalent immobilization of the peptide. The functionalization was characterized at…

Journal of Physical Chemistry B, 2012, 116, pp.13839-47. ⟨10.1021/jp305597y⟩. ⟨hal-00808576⟩

  • Article dans une revue

Binding mechanism of oligopeptides on solid surface: assessing the significance of single-molecule approach

Joanne Lê-Chesnais, Marie Steffenhagen, Christophe Méthivier, Dominique Costa, Daniela Rodriguez, Jean-François Lambert, Emmanuel Maisonhaute, Jessem Landoulsi

This paper addresses the complementarity and potential disparities between single-molecule and ensemble-average approaches to probe the binding mechanism of oligopeptides on inorganic solids. Specifically, we explore the peptide/gold interface owing to its significance in various topics and its…

Nanoscale, 2025, 17, pp.3460-3477. ⟨10.1039/d4nr04474f⟩. ⟨hal-04930701⟩

  • Article dans une revue

Skeletal Au prepared from Au-Zr amorphous alloys with controlled atomic compositions and arrangement for active oxidation of benzyl alcohol

Ai Nozaki, Yasutomo Tanihara, Yasutaka Kuwahara, Tetsutaro Ohmichi, Kohsuke Mori, Takeshi Nagase, Hiroyuki Y. Yasuda, Christophe Calers, Catherine Louis, Hiromi Yamashita

Skeletal (nanoporous) gold catalysts were prepared from Au–Zr amorphous alloys by immersion in HF solution to extract Zr moieties. The catalytic performance of the skeletal Au catalyst for the oxidation of benzyl alcohol to benzaldehyde was examined using O2 as an oxidant. The amount of…

Journal of Materials Chemistry A, 2016, 4 (21), pp.8458 - 8465. ⟨10.1039/C6TA01963C⟩. ⟨hal-01548324⟩