Laboratoire de réactivité de surface

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  • Article dans une revue

Detailed crystal chemistry and iron topochemistry of asbestos occurring in its natural setting: A first step to understanding its chemical reactivity

A. Pacella, G. B. Andreozzi, Jeanine Fournier

Five samples of tremolite asbestos from Italy and USA were fully characterized by ICP-MS, SEM, EMPA, FT-IR, MS, XRPD, to correlate crystal chemistry with chemical reactivity. Iron topochemistry was investigated in detail, due to the role of Fe in the aetiology of respiratory inflammatory diseases.…

Chemical Geology, 2010, 277 (3-4), pp.197-206. ⟨10.1016/j.chemgeo.2010.07.018⟩. ⟨hal-00604789⟩

  • Article dans une revue

Bioengineering of stainless steel surface by covalent immobilization of enzymes. Physical characterization and interfacial enzymatic activity

Anne Caro, Vincent Humblot, Christophe Methivier, Michel Minier, Lucica Barbes, Joachim Li, Michele Salmain, Claire-Marie Pradier

Two hydrolytic enzymes, namely lysozyme and trypsin, were covalently immobilized onto stainless steel surfaces using wet chemistry processes. The immobilization strategy took advantage of the spontaneous physisorption of the polymer poly(ethylene imine) (PEI) onto stainless steel to yield a firmly…

Journal of Colloid and Interface Science, 2010, 349 (1), pp.13-18. ⟨10.1016/j.jcis.2009.12.001⟩. ⟨hal-00604709⟩

  • Article dans une revue

Catalytic performance of platinum doped tungsten carbide in simultaneous hydrodenitrogenation and hydrodesulphurization

M. H. Lewandowski, Patrick da Costa, D. Benichou, Celine Sayag

The simultaneous hydrodesulphurization (HDS) and hydrodenitrogenation (HDN) reactions of refractory model compds. were performed for the first time over tungsten carbide doped with platinum before and after prepn. (0.3%). It was then compared to that of a pure non-modified W2C. The model compds.…

Applied Catalysis B: Environmental, 2010, 93 (3-4), pp.241-249. ⟨10.1016/j.apcatb.2009.09.035⟩. ⟨hal-00604775⟩

  • Article dans une revue

Highly porous and monodisperse magnetic silica beads prepared by a green templating method

Sebastien Abramson, Clementine Meiller, Patricia Beaunier, Vincent Dupuis, Laurent Perrigaud, Agnes Bee, Valerie Cabuil

We describe the prepn. of magnetic silica nanocomposite millimetric beads using alginate as a green biopolymer template. The simple and soft method which is used here is particularly suitable since the alginate template allows a multiscale control of the structure of the material, both its morphol…

Journal of Materials Chemistry, 2010, 20 (23), pp.4916-4924. ⟨10.1039/C000525H⟩. ⟨hal-00604697⟩

  • Article dans une revue

Exhaust gas recirculation for on-board hydrogen production by isooctane reforming: Comparison of performances of metal/ceria-zirconia based catalysts prepared through pseudo sol-gel or impregnation methods are described

Emmanuelle Ambroise, Claire Courson, Anne-Cecile Roger, Alain Kiennemann, Gilbert Blanchard, Severine Rousseau, Xavier Carrier, Eric Marceau, Camille La Fontaine, Francoise Villain

Isooctane reforming under conditions which are set by exhaust gas can be used to generate H on-board. Isooctane reforming reactivity tests have been performed with bimetallic catalysts Co-noble metal/ceria-zirconia, prepd. either by insertion of transition metal in a ceria-zirconia matrix, either…

Catalysis Today, 2010, 154 (1-2), pp.133-141. ⟨10.1016/j.cattod.2009.12.010⟩. ⟨hal-00604698⟩

  • Article dans une revue

Study of a chromium-free treatment on Hot-Dip Galvanized steel: Electrochemical behaviour and performance in a saline medium

S. Le Manchet, Jessem Landoulsi, C. Richard, D. Verchere

This paper focuses on the physicochemical characterization and on the electrochemical behaviour of a Cr-free treatment applied on Hot-Dip Galvanized (HDG) steel. The treatment is composed of fluorotitanic acid, manganese phosphate, phosphoric acid and an organic compound Effects of the two major…

Surface and Coatings Technology, 2010, 205 (2), pp.475-482. ⟨10.1016/j.surfcoat.2010.07.009⟩. ⟨hal-00604773⟩

  • Article dans une revue

On the clarification of the IR stretching vibration assignment of adsorbed N2 on Rh0 and Rhd+ surface atoms of supported Rh crystallites

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

The low temperature adsorption of N2 on Rh/SiO2 samples of various particle-size distributions was followed by FTIR. The addition of O2 pulses on Rh0 surfaces saturated with chemisorbed N2 allowed us to reassign stretching frequencies attributed originally to N2-Rh0 to N2-RhΔ+. The formation of the…

Journal of Physical Chemistry B, 2006, 110, pp.10075-10081. ⟨10.1021/jp061077y⟩. ⟨hal-00079961⟩

  • Article dans une revue

Experimental clues for detecting biosignatures on Mars

J.-C. Viennet, S. Bernard, Corentin Le Guillou, P. Jacquemot, E. Balan, L. Delbes, B. Rigaud, T. Georgelin, M. Jaber

Forthcoming exploration of Mars aims at identifying fossil biosignatures within ancient clay-rich formations. The subsurface of Mars has mostly acted as a giant freezer for the last 4 Gyr, thereby preserving potential remains of martian life. Yet, volcanism and impactors have periodically triggered…

Geochemical Perspectives Letters, 2019, Geochemical Perspectives Letters, 12, pp.28-33. ⟨10.7185/geochemlet.1931⟩. ⟨hal-02415460⟩

  • Article dans une revue

Carbonates thermal decomposition kinetics and their implications in using Rock-Eval ® analysis for carbonates identification and quantification

François Baudin, Nicolas Bouton, Adrien Wattripont, Xavier Carrier

In 2014, Pillot et al. [Identification and quantification of carbonate species using Rock-Eval pyrolysis, Oil Gas Sci. Technol. – Rev. IFP 69, 341–349. https://doi.org/10.2516/ogst/2012036] proposed to use the Rock- Eval® method as a reliable tool to identify and quantify carbonates in solid…

Science and Technology for Energy Transition, 2023, ⟨10.2516/ogst/2012036]⟩. ⟨hal-04390156⟩

  • Article dans une revue

Electrochemical and spectroscopic evidences of corrosion inhibition of bronze by a triazole derivative

Ahmed Dermaj, Najat Hajjaji, Suzanne Joiret, Kamal Rahmouni, Abdellah Srhiri, Hisasi Takenouti, Vincent Vivier

The electrochemical behavior of the bronze (Cu–8Sn in wt%) was investigated in 3% NaCl aqueous solution, in presence and in absence of a corrosion inhibitor, the 3-phenyl-1,2,4-triazole-5-thione (PTS). The inhibiting effect of the PTS was evidenced for concentrations higher than 1 mM for the…

Electrochimica Acta, 2007, 52 (14), pp.4654-4662. ⟨10.1016/j.electacta.2007.01.068⟩. ⟨hal-04152607⟩