Laboratoire de réactivité de surface

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  • Article dans une revue

Polyol synthesis and magnetic study of Mn3O4 nanocrystals of tunable size

Lorette Sicard, Jean-Marc Le Meins, Christophe Methivier, Frederic Herbst, Souad Ammar

Nanosized manganese oxide particles were prepd. by the so-called polyol process. The av. diam. of the particles was controlled by the growth time. XRD, TEM and x-ray photon spectroscopy (XPS) show that the particles are well crystd., pure, stoichiometric Mn3O4 single crystals of uniform size…

Journal of Magnetism and Magnetic Materials, 2010, 322 (18), pp.2634-2640. ⟨10.1016/j.jmmm.2010.03.016⟩. ⟨hal-00604799⟩

  • 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⟩

  • Communication dans un congrès

Deciphering interfacial capacitance of passive electrode : contribution of the double layer

Oumaïma Gharbi, Mai T.T. Tran, Mark E Orazem, Bernard Tribollet, Mireille Turmine, Vincent Vivier

The analysis of the EIS response of passive film remains a difficult challenge since it usually results in a non-ideal behavior of the dielectric properties of the film and mainly relies on the assumption that the contribution of the double layer can be neglected. The later an approximation can be…

12th International Symposium on Electrochemical Impedance Analysis (EIA), ISE, Nov 2021, Online conference, Germany. ⟨hal-04013493⟩

  • Communication dans un congrès

On the graphical analysis of the impedance response of passive electrodes

Mai T.T. Tran, Oumaïma Gharbi, Mark E Orazem, Bernard Tribollet, Mireille Turmine, Vincent Vivier

The analysis of the capacitive behavior of a passive electrode is often a difficult subject because the response obtained by electrochemical impedance spectroscopy (EIS) is characterized by a non-ideal behavior that we try to model by using a constant phase element (CPE) [1, 2]. In doing so, both…

241st ECS Meeting of The Electrochemical Society, ECS, May 2022, Vancouver (CA), Canada. ⟨hal-03994070⟩

  • Article dans une revue

On-line inductively coupled plasma-atomic emission spectroelectrochemistry: Real-time element-resolved electrochemistry

Borhan Bin Mohamad Sultan, Oumaïma Gharbi, Kevin Ogle, Junsoo Han

Electrochemical techniques are coupled with inductively coupled plasma (ICP) atomic emission spectrometry for in-line electrolyte analyses. In this way, direct measurement of the elemental dissolution rates in real-time or element-resolved electrochemistry can be carried out, complementary to…

Current Opinion in Electrochemistry, 2023, 41, pp.101350. ⟨10.1016/j.coelec.2023.101350⟩. ⟨hal-04211090⟩

  • Article dans une revue

Design of model tokamak particles for future toxicity studies: Morphology and physical characterization

E. Bernard, F. Jambon, I. Georges, M. Sanles Sobrido, Jérôme Rose, N. Herlin-Boime, F. Miserque, P. Beaunier, D. Vrel, S. Dine, E. Hodille, J. Chêne, S. Garcia-Argote, G. Pieters, S. Peillon, F. Gensdarmes, G. Dinescu, T. Acsente, Chiara Uboldi, Thierry Orsière, Veronique Malard, B. Rousseau, G. Dine, Ph. Delaporte, C Grisolia

During ITER operation, it is expected that the large panel of plasma-wall interactions triggers the production of dust particles from the tungsten and beryllium first wall. These particles can be loaded with tritium (T) used as a fuel for the fusion reaction; T inventory is of prime importance for…

Fusion Engineering and Design, 2019, 145, pp.60-65. ⟨10.1016/j.fusengdes.2019.05.037⟩. ⟨hal-02169319⟩

  • Article dans une revue

Hollow Gold Nanoshells for Sensitive 2D Plasmonic Sensors

Daoming Sun, Ferdaous Ben Romdhane, Axel Wilson, Michèle Salmain, Souhir Boujday

The interaction of incident light with noble metal nanoparticles engenders a fascinating phenomenon known as localized surface plasmon resonance (LSPR). This results in the presence of single or multiple intense absorption bands in the visible to near-infrared spectral range whose position is…

ACS Applied Nano Materials, 2024, 7 (5), pp.5093-5102. ⟨10.1021/acsanm.3c05872⟩. ⟨hal-04477602⟩

  • Article dans une revue

Surface‐Dependent Activation of Model α‐Al2O3‐Supported P‐Doped Hydrotreating Catalysts Prepared by Spin Coating

Ricardo Garcia de Castro, Jérémy Bertrand, Baptiste Rigaud, Elodie Devers, Mathieu Digne, Anne‐félicie Lamic-Humblot, Gerhard Pirngruber, Xavier Carrier

Requirements for improved catalytic formulations is continuously driving research in hydrotreating (HDT) catalysis for biomass upgrading and heteroatom removal for cleaner fuels. The present work proposes a surface-science approach for the understanding of the genesis of the active (sulfide) phase…

Chemistry - A European Journal, 2020, 26 (64), pp.14623-14638. ⟨10.1002/chem.202001882⟩. ⟨hal-04025167⟩

  • Communication dans un congrès

Heterogeneous Fenton-like reactions in natural soils and sediments at neutral pH with O2 as oxidant

Elora Bourbon, Frederic Averseng, Thierry Allard, Pierre Le Pape, Sylvie Nélieu, Xavier Carrier, Guillaume Morin, Elodie Guigon, Fulvia Baratelli, Sophie Ayrault

Heterogeneous Fenton-like processes using O2 as oxidant and iron(II) minerals as substrate is a rapidly growing research field with important implications especially for in-situ organic pollutant degradation in natural media. These reactions can be conducted at neutral pH and several minerals are…

Goldschmidt 2023, Jul 2023, Lyon, France. ⟨hal-04390051⟩

  • Article dans une revue

Aqueous-Phase Preparation of Model HDS Catalysts on Planar Alumina Substrates: Support Effect on Mo Adsorption and Sulfidation

Cédric Bara, Lucie Plais, Kim Larmier, Elodie Devers, Mathieu Digne, Anne-Félicie Lamic-Humblot, Gerhard D. Pirngruber, Xavier Carrier

The role of the oxide support on the structure of the MoS2 active phase (size, morphology, orientation, sulfidation ratio, etc.) remains an open question in hydrotreating catalysis and biomass processing with important industrial implications for the design of improved catalytic formulations. The…

Journal of the American Chemical Society, 2015, 137 (50), pp.15915-15928. ⟨10.1021/jacs.5b10975⟩. ⟨hal-01263787⟩