Laboratoire de réactivité de surface

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  • Article dans une revue

Oxidation of gold metal particles supported on TiO2: an FTIR study by means of low-temperature CO adsorption

Hr. Klimev, Katia Fajerwerg, K. Chakarova, L. Delannoy, C. Louis, K. Hadjiivanov

Two Au/TiO2 samples with different gold loadings (0.7 and 4.0 wt.% Au) were prepared by deposition-precipitation with urea and calcined at 673 K. TEM revealed gold particles of 3.2 and 3.9 nm for the 0.7 and 4.0 wt.% samples, respectively. The samples were subjected to different red-ox treatments…

Journal of Materials Science, 2007, 42 (10), pp.3299-3306. ⟨10.1007/s10853-006-0777-1⟩. ⟨hal-03663974⟩

  • Article dans une revue

A Rotaxane Scaffold Bearing Multiple Redox Centers: Synthesis, Surface Modification and Electrochemical Properties

Marie Steffenhagen, Alina Latus, Thi Minh Nguyet Trinh, Iwona Nierengarten, Ivan T. Lucas, Suzanne Joiret, Jessem Landoulsi, Béatrice Delavaux-Nicot, Jean-François Nierengarten, Emmanuel Maisonhaute

A rotaxane scaffold incorporating two dithiolane anchoring units for the modification of gold surfaces has been functionalized with multiple copies of a redox unit, namely ferrocene. Surface modification has been first assessed at the single molecule level by atomic force microscopy (AFM) and…

Chemistry - A European Journal, 2018, 24 (7), pp.1701-1708. ⟨10.1002/chem.201705245⟩. ⟨hal-01722802⟩

  • Article dans une revue

Mapping amine functions at nanosurfaces using colloidal gold conjugation

Nicolas Debons, Dounia Dems, Christophe Méthivier, Christophe Calers, Antoine Miche, Thibaud Coradin, Carole Aimé

The functionalization of the surface of nanomaterials is a key approach to improve their stability, tune their reactivity and confer them specific properties. However, the mapping of functional groups at the nanometer scale remains difficult to achieve. This concerns not only the chemical nature of…

Applied Surface Science, 2021, 566, pp.150689. ⟨10.1016/j.apsusc.2021.150689⟩. ⟨hal-03349845v2⟩

  • Article dans une revue

Deciphering pathological remodelling of the human cartilage extracellular matrix in osteoarthritis at the supramolecular level

Ilhem Lilia Jaabar, Pauline Cornette, Antoine Miche, Kristell Wanherdrick, Vincent Dupres, François-Paul Ehkirch, Adeline Cambon Binder, Francis Berenbaum, Xavier Houard, Jessem Landoulsi

Osteoarthritis induces a combination of chemical, structural and nanomechanical changes to collagen fibrils and aggrecan aggregates, the main building blocks of cartilage ECM, that may be mimicked by specific enzymatic reactions.

Nanoscale, 2022, 14 (24), pp.8691-8708. ⟨10.1039/d2nr00474g⟩. ⟨hal-03986333⟩

  • Article dans une revue

Design and Analytical Performances of a Diclofenac Biosensor for Water Resources Monitoring

Yacine Mazouzi, Antoine Miche, Alexis Loiseau, Bruno Beito, Christophe Méthivier, Dietmar Knopp, Michèle Salmain, Souhir Boujday

Because the broadly consumed pain killer diclofenac (DCF) is a recognized pollutant, monitoring of its concentration is routinely performed in surface waters. As a valuable alternative to chromatographic and immunochemical assays, we developed a piezoelectric immunosensor to quantify DCF, first in…

ACS Sensors, 2021, 6 (9), pp.3485-3493. ⟨10.1021/acssensors.1c01607⟩. ⟨hal-03351021⟩

  • Article dans une revue

Simple procedure for vacant POM-stabilized palladium (0) nanoparticles in water: structural and dispersive effects of lacunary polyoxometalates

Richard Villanneau, A. Roucoux, P. Beaunier, D. Brouri, A. Proust

Metallic palladium nanoparticles have been generated by hydrogenation in very mild conditions of aqueous solutions of non-organometallic PdII-derivatives of heteropolytungstates.

RSC Advances, 2014, 4 (50), pp.26491-26498. ⟨10.1039/C4RA03104K⟩. ⟨hal-04564836⟩

  • Article dans une revue

Ionic liquid redox flow membraneless battery in microfluidic system

Nesrine Chaabene, Kieu Ngo, Mireille Turmine, Vincent Vivier

Redox flow batteries (RFBs) often require the presence of a physical membrane to separate the two compartments of the battery. The objective of this work is to develop a membraneless microfluidic redox flow battery (RFB) by using 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (…

Journal of Energy Storage, 2023, 57, pp.106270. ⟨10.1016/j.est.2022.106270⟩. ⟨hal-03920525⟩

  • Article dans une revue

Physical techniques and catalyst preparation: Determining the interactions of transition-metal complexes with oxide surfaces

Xavier Carrier, Eric Marceau, Michel Che

This contribution presents the molecular approach used to investigate the different preparation steps of important catalytic systems, based on Mo, Ni, and Co. The first preparation step consists of impregnating oxide supports by aqueous solutions of transition-metal complexes (TMCs), called…

Pure and Applied Chemistry, 2006, 78, pp.1039-1055. ⟨10.1351/pac200678051039⟩. ⟨hal-00077133⟩

  • Article dans une revue

Preparation of Highly Anisotropic Cobalt Ferrite/Silica Microellipsoids Using an External Magnetic Field

Sébastien Abramson, Vincent Dupuis, Sophie Neveu, Patricia Beaunier, David Montero

Magnetic cobalt ferrite/silica microparticles having both an original morphology and an anisotropic nanostructure are synthesized through the use of an external magnetic field and nanoparticles characterized by a high magnetic anisotropy. The association of these two factors implies that the ESE (…

Langmuir, 2014, 30 (30), pp.9190-200. ⟨10.1021/la501547q⟩. ⟨hal-01121597⟩

  • Article dans une revue

Gold Nanoparticles on Oxide-Free Silicon-Molecule Interface for Single Electron Transport

Louis Caillard, Oliver Seitz, Philip M. Campbell, Rachel P. Doherty, Anne-Félicie Lamic-Humblot, Emmanuelle Lacaze, Yves J. Chabal, Olivier Pluchery

Two different organic monolayers were prepared on silicon Si(111) and modified for attaching gold nanoparticles. The molecules are covalently bound to silicon and form very ordered monolayers sometimes improperly called self-assembled monolayers (SAM). They are designed to be electrically…

Langmuir, 2013, 29, pp.5066-5073. ⟨10.1021/la304971v‎⟩. ⟨hal-00910966⟩