Laboratoire de réactivité de surface

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  • 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

Optimized grafting of antimicrobial peptides on stainless steel surface and biofilm resistance tests

Arnaud Hequet, Vincent Humblot, Jean-Marc Berjeaud, Claire-Marie Pradier

Antibacterial peptides, magainin I and nisin were covalently bound to stainless steel surfaces. Several procedures of surface functionalisation processes have been investigated and optimized, each step being characterized by polarization modulation reflection absorption infrared spectroscopy (PM-…

Colloids and Surfaces B: Biointerfaces, 2011, 84 (2), pp.301-309. ⟨10.1016/j.colsurfb.2011.01.012⟩. ⟨hal-00602940⟩

  • Article dans une revue

New insights into the development of Brønsted acidity of niobic acid

Vanessa Lebarbier, Marwan Houalla, Thomas Onfroy

The development of Brønsted acidity and the relationship between acidity, catalytic performance and structure of niobium oxide were investigated for a series of samples prepared by calcination of niobic acid at temperatures between 423 and 823 K. All solids were active for propan-2-ol dehydration.…

Catalysis Today, 2012, 192, pp.123-129. ⟨10.1016/j.cattod.2012.02.061⟩. ⟨hal-00745977⟩

  • Article dans une revue

Surface plasmon resonance biosensors incorporating gold nanoparticles.

Erin Bedford, Jolanda Spadavecchia, Claire-Marie Pradier, Frank Gu

SPR biosensing is increasingly popular for the detection of a multitude of biomolecules. It offers label-free detection and study of proteins, nucleic acids, and other biomolecules in real time. A recent trend involves incorporation of AuNPs, either within the sensing surface itself or as signal…

Macromolecular Bioscience, 2012, 12, pp.724-739. ⟨10.1002/mabi.201100435⟩. ⟨hal-00745836⟩

  • Article dans une revue

Selective catalytic reduction of NO on single site FeSiBEA zeolite catalyst: Influence of the C1 and C2 reducing agents on the catalytic properties

Janusz Janas, Wojciech Rojek, Tetsuya Shishido, Stanislaw Dzwigaj

FeSiBEA zeolite with 0.8 Fe wt% is prepared in acidic condition (pH 2.5) by a two-step postsynthesis method which allows to incorporate iron into framework of zeolite as mononuclear distorted tetrahedral Fe(III) species, as evidenced by XRD, diffuse reflectance UV-vis and X-ray absorption…

Applied Catalysis B: Environmental, 2012, 123-124, pp.134-140. ⟨10.1016/j.apcatb.2012.04.026⟩. ⟨hal-00744653⟩

  • Article dans une revue

Bioconjugated gold nanorods to enhance the sensitivity of FT-SPR-based biosensors

Jolanda Spadavecchia, Sandra Casale, Souhir Boujday, Claire-Marie Pradier

n this paper, we report a feasible solvent-free approach for the synthesis and self-assembling of gold nanorods after bioconjugation to antibodies; scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images revealed a remarkable shape and size narrow distribution, as well…

Colloids and Surfaces B: Biointerfaces, 2012, 100, pp.1-8. ⟨10.1016/j.colsurfb.2012.03.035⟩. ⟨hal-00744490⟩

  • Article dans une revue

Controlling the reproducibility of Coulomb blockade phenomena for gold nanoparticles on an organic monolayer/silicon system

L Caillard, S Sattayaporn, A-F Lamic-Humblot, S Casale, P Campbell, y J Chabal, Olivier Pluchery

Two types of highly ordered organic layers were prepared on silicon modified with an amine termination for binding gold nanoparticles (AuNPs). These two grafted organic monolayers (GOMs), consisting of alkyl chains with seven or 11 carbon atoms, were grafted on oxide-free Si(111) surfaces as tunnel…

Nanotechnology, 2015, 26 (6), pp.065301. ⟨10.1088/0957-4484/26/6/065301⟩. ⟨hal-01114456⟩

  • Article dans une revue

The Synthesis of Different Series of Cobalt BEA Zeolite Catalysts by Post-Synthesis Methods and Their Characterization

Renata Sadek, Karolina Chalupka-Spiewak, Jean-Marc Krafft, Yannick Millot, Laetitia Valentin, Sandra Casale, Jacek Gurgul, Stanislaw Dzwigaj

Three series of zeolite catalysts Co all-silica and Co Al-containing zeolites beta were prepared for use in the selective oxidative dehydrogenation of propane to propylene. Two series of zeolite catalysts Co all-silica were prepared by a two-step postsynthesis method at pH = 2.5 and pH = 3.0-9.0,…

Catalysts, 2022, 12 (12), pp.1644. ⟨10.3390/catal12121644⟩. ⟨hal-04030832⟩

  • Article dans une revue

Modelling of a Lean NOx-Trap system with NO/NO2 differentiation and sulfur poisoning

Alexis Manigrasso, Pierre Darcy, Patrick da Costa

One of the challenges in the automotive industry is to develop new vehicles and new technologies with minimal costs. In this context, modeling becomes an important tool for the design of future technologies by reducing the number of tests needed to develop a new exhaust system. With the emergence…

SAE International Journal of Fuels and Lubricants, 2010, 3 (2), pp.414-424. ⟨hal-00604776⟩

  • Article dans une revue

The controlled synthesis of metal-acid bifunctional catalysts: Selective Pt deposition and nanoparticle synthesis on amorphous aluminosilicates

Jadid E. Samad, Juliette Blanchard, Celine Sayag, Catherine Louis, John R. Regalbuto

The rational synthesis of metal-acid bifunctional catalysts based on aluminosilicates will involve control over which domain – alumina or silica – the metal can be deposited on, as well as the control of particle size. These factors determine the ratio and proximity of the metal and acid sites. The…

Journal of Catalysis, 2016, 342, pp.213 - 225. ⟨10.1016/j.jcat.2016.08.002⟩. ⟨hal-01564217⟩