Laboratoire de réactivité de surface

Publications du LRS

Publications HAL

Recherche Avancée

  • Article dans une revue

Ex-nitrate Co/SBA-15 catalysts prepared with calibrated silica grains: Information given by TPR, TEM, SAXS and WAXS

F. Boubekr, A. Davidson, S. Casale, P. Massiani

The aim of the present work was to check for the presence of an ordered array of Co-based nanoparticles in catalysts prepared by impregnation and by using the two-solvents technique with pentane and cyclohexane on a single SBA-15 batch (prepared by precipitation in strongly acidic conditions (HCl 2…

Microporous and Mesoporous Materials, 2011, 141 (1-3), pp.157-166. ⟨10.1016/j.micromeso.2010.10.038⟩. ⟨hal-00602696⟩

  • Article dans une revue

Active Site Design in a Core-Shell Nanostructured Catalyst for a One-Pot Oxidation Reaction

Shusuke Okada, Kohsuke Mori, Takashi Kamegawa, Michel Che, Hiromi Yamashita

Designing an active site: A new type of core-shell structured catalyst was prepared, with a uniform SiO2 core supporting Pd nanoparticles (NPs) covered with a Ti-containing mesoporous silica shell. Generated H2O2 on the inner Pd NP site could interact with the Ti oxide moieties within the mesopores…

Chemistry - A European Journal, 2011, 17 (33), pp.9047-9051. ⟨10.1002/chem.201101241⟩. ⟨hal-00663357⟩

  • Article dans une revue

Piezoelectricimmunosensor for direct and rapiddetection of staphylococcal enterotoxin A (SEA) at the ng level

Michèle Salmain, Mahsa Ghasemi, Souhir Boujday, Jolanda Spadavecchia, Marie-Clarisse Techer, Florence Val, Vincent Le Moigne, M. Gautier, Romain Briandet, Claire-Marie Pradier

A direct, label-free immunosensor was designed for the rapiddetection and quantification of staphylococcal enterotoxin A (SEA) in buffered solutions using quartz crystal microbalance with dissipation (QCM-D) as transduction method. The sensing layer including the anti-SEA antibody was constructed…

Biosensors and Bioelectronics, 2011, 29 (1), pp.140-144. ⟨10.1016/j.bios.2011.08.007⟩. ⟨hal-00680966⟩

  • Article dans une revue

Silver species reduction upon exposure of Ag/Al2O3 catalyst to gaseous ethanol: An in situ Quick-XANES study

Elie Sayah, Camille La Fontaine, Valérie Briois, Dalil Brouri, Pascale Massiani

The evolution of supported silver species of a pre-calcined Ag/Al2O3 catalyst was monitored upon thermal treatment under an air flow enriched with 3000 ppm of ethanol (EtOH) using transmission electron microscopy and UV-visible and X-ray absorption spectroscopies. A special focus is put on the…

Catalysis Today, 2012, 189, pp.55-59. ⟨10.1016/j.cattod.2012.03.055⟩. ⟨hal-00745963⟩

  • Pré-publication, Document de travail

A common precursor to both prebiotic and biological pathways to RNA nucleotides

Andrea Pérez-Villa, Thomas Georgelin, Jean-François Lambert, Marie-Christine Maurel, François Guyot, A. Marco Saitta, Fabio Pietrucci

Understanding the mechanism of spontaneous formation of ribonucleotides under realistic prebiotic conditions is a key open issue of origins-of-life research. In cells, de novo and salvage nucleotide enzymatic synthesis combines 5-phospho-α-D-ribose-1-diphosphate (α-PRPP) and nucleobases.…

2023. ⟨hal-04015892⟩

  • Article dans une revue

Catalytic performances of platinum doped molybdenum carbide for simultaneous hydrodenitrogenation and hydrodesulfurization

Marek Lewandowski, Agnieszka Szymanska-Kolasa, Patrick da Costa, Celine Sayag

The hydrotreating activity of molybdenum carbide doped with platinum (0.3 wt.%) was studied and compared to that of a pure, non-modified Mo2C. 4,6-Dimethyldibenzothiophene (4,6-DMDBT, 300 ppm of S) and carbazole (100 ppm of N) were designated as model compounds and subjected to hydrodesufurization…

Catalysis Today, 2006, 119, pp.31-34. ⟨10.1016/j.cattod.2006.08.062⟩. ⟨hal-00128076⟩

  • Article dans une revue

Mesoporous materials from zeolite seeds as supports for nickel tungsten sulfide active phases Part 1. Characterization and catalytic properties in hydrocracking reactions

Shuangqin Zeng, Juliette Blanchard, Michèle Breysse, Dadong Li, Hong Nie, Yahua Shib, Xintian Su

MCM-41 aluminosilicate mesostructures (Si/Al = 18) with hexagonal long-range order were assembled from protozeolitic nanoclusters (zeolite seeds) that normally nucleate the crystn. of b-zeolite (BEA). Depending on the duration of the thermal treatment leading to the zeolite seeds, different acidic…

Applied Catalysis A : General, 2005, 294, pp.59-67. ⟨10.1016/j.apcata.2005.07.015⟩. ⟨hal-00080297⟩

  • Article dans une revue

Evaluation and application of a new scintillator‐based heat‐resistant back‐scattered electron detector during heat treatment in the scanning electron microscope

Renaud Podor, J. Mendonça, J. Lautru, H.P. Brau, D. Nogues, A. Candeias, P. Horodysky, A. Kolouch, M. Barreau, X. Carrier, N. Ramenatte, S. Mathieu, M. Vilasi

A new high-temperature detector dedicated to the collection of backscattered electrons is used in combination with heating stages up to 1050°C, in high-vacuum and low-vacuum modes in order to evaluate its possibilities through signal-to-noise ration measurements and different applications. Four…

Journal of Microscopy, 2021, 282 (1), pp.45-59. ⟨10.1111/jmi.12979⟩. ⟨hal-03336998⟩

  • Article dans une revue

Black Phosphorus-Based Compound with Few Layers for Photocatalytic Water Oxidation

Junqing Yan, Yujin Ji, Lingqiao Kong, Youyong Li, Miriam Navlani-García, Shengzhong Frank Liu, Yasutaka Kuwahara, Kohsuke Mori, Michel Che, Hiromi Yamashita

Although black phosphorus (BP) is an interesting 2D nanosheet material with a high hole mobility, its application in the photocatalytic water oxidation for O2 evolution is not reported yet. Herein the use of BP coupled with a reductive hydroxide, Ni(OH)2, is reported for the first time. The…

ChemCatChem, 2018, 10 (16), pp.3424-3428. ⟨10.1002/cctc.201800555⟩. ⟨hal-04015971⟩

  • Article dans une revue

Operando TEM study of working TiO 2 supported Au and Au–Cu catalysts during butadiene hydrogenation

Abdallah Nassereddine, Laurent Delannoy, Catherine Louis, Guillaume Wang, Damien Alloyeau, Christian Ricolleau, Axel Wilson, Jaysen Nelayah

Atomic-scale operUnderstanding the structural stability and chemical dynamics of supported metal nanoparticles under working conditions is essential for the rational design of selective hydrogenation catalysts. In this work, we investigate monometallic Au/TiO2 and bimetallic Au–Cu/TiO2 catalysts…

Nanoscale, 2026, 18 (27), pp.14362-14370. ⟨10.1039/d6nr00549g⟩. ⟨hal-05704299⟩