Laboratoire de réactivité de surface

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  • Article dans une revue

Ruthenium sulfide clusters in acidic zeolites: in situ XAS characterization during sulfidation and reaction

Juliette Blanchard, Kyoko K. Bando, Takashi Matsui, Masaru Harada, Michèle Breysse, Yuji Yoshimura

In situ XAS at the Ru K edge was used to study the reductive sulfidation (15% H2S/H2) of Ru(NH3)63+ supported on HYd zeolite, and the evolution of the sulfided sample under working conditions (lower H2S partial pressure, addition of toluene to the feed). Sulfidation starts at room temperature and…

Applied Catalysis A : General, 2007, XX, pp.XX. ⟨hal-00112011⟩

  • Article dans une revue

On an additional promoting role of hydrogen in the H2-assistedC3H6-SCR of NOxon Ag/Al2O3: A lowering of the temperature offormation-decomposition of the organo-NOxintermediates?

Cyril Thomas

tThe addition of minute amounts of H2to the selective catalytic reduction of nitrogen oxides (NOx)by hydrocarbons (HC-SCR) has been shown to promote the reduction of NOxat remarkably lowerreaction temperatures on Ag/Al2O3catalysts. Despite extensive investigations, the origin of this remark-able…

Applied Catalysis B: Environmental, 2014, 162, pp.454-462. ⟨10.1016/j.apcatb.2014.07.021⟩. ⟨hal-01064983⟩

  • Communication dans un congrès

In situ XAFS study of the thioresistance of metallic Ru supported on HYd zeolite

Juliette Blanchard, K. Kyoko Bando, Christophe Geantet, Takashi Matsui, Michèle Breysse, Yuji Yoshimura

In situ XAFS at the Ru K edge was used to investigate the reduction of Ru(NH3)63+ supported on HYd zeolite, and the evolution of the reduced sample in the presence of sulfur (350 ppm and 2%H2S/H2) at 523K. After reduction at 673K very small Ru° nanoparticules are formed which interact strongly with…

TOCAT5, Jul 2006, Tokyo, Japan. ⟨hal-00112012⟩

  • Communication dans un congrès

Intérêt des revêtements N-halamines dans la lutte contre le développement des bactéries et du biofilm

Catherine Debiemme-Chouvy, Shan Gao, Hubert Cachet, Nadia Nazi, Vincent Humblot

L’enrayement du développement des biofilms ou de la prolifération de bactéries pathogènes est indispensable aussi bien pour des raisons de santé publique que pour des raisons économiques. Pour les milieux hydriques, à ces fins, des biocides oxydants sont fréquemment employés. Ils sont alors ajoutés…

Matériaux 2018, FFM; Société Chimique de France (SCF), Nov 2018, Strasbourg (67), France. ⟨hal-03978791⟩

  • Article dans une revue

Immobilisation of protein A on SAM's for the elaboration of immunosensors

Elisabeth Briand, Michèle Salmain, Chantal Compere, Claire-Marie Pradier

Binary mixtures of 11-mercaptoundecanoic acid (MUA) and other thiols of various lengths and terminal functions were chemisorbed on gold-coated surfaces via S-Au bonds to form mixed self-assembled monolayers (SAMs). Several values of the mole fraction of MUA in the thiol mixtures were tested and the…

Colloids and Surfaces, 2006, 53, pp.222-231. ⟨10.1016/j.colsurfb.2006.09.010⟩. ⟨hal-00111187⟩

  • Thèse

Towards a new concept of a proton battery, Vers un nouveau concept de batterie protonique

Ekaterina Kurchavova

Ni-MH battery is widely used energy storage systems, which are recognized for their good cyclability, competitive energy density, low memory effect, wide range of operating temperatures, low cost, and environmental friendliness. Despite these notable advantages, their widespread adoption is still…, Les batteries Ni-MH sont des systèmes de stockage d'énergie largement utilisés qui sont reconnues pour leur bonne cyclabilité, une densité énergétique compétitive, un faible effet mémoire, une large gamme de températures de fonctionnement, un faible coût et leur respect de l'environnement…

Analytical chemistry. Sorbonne Université, 2023. English. ⟨NNT : 2023SORUS448⟩. ⟨tel-05313648⟩

  • Article dans une revue

Self-Organization and/or Nanocrystallinity of Co Nanocrystals Effects on the Oxidation Process Using High-Energy Electron Beam

Ana Cazacu, Claudio Larosa, Patricia Beaunier, Guillaume Laurent, Paolo Nanni, Liliana Mitoseriu, Isabelle Lisiecki

We report the enhanced stability of Co nanocrystals (NCs) when they are highly ordered at both nanometer and micrometer scales. We show for the first time that both the crystalline structure of Co nanoparticles (NPs) and their 2D hexagonal organization have a significant impact on the oxidation…

Advanced Functional Materials, 2014, 24 (1), pp.164-170. ⟨10.1002/adfm.201301465⟩. ⟨hal-03744254⟩

  • Article dans une revue

Towards the synthesis of mixed oxides with controlled stoichiometry from Prussian blue analogues

Virgile Trannoy, Amélie Bordage, Jordan Dezalay, Romuald Saint-Martin, Eric Rivière, Patricia Beaunier, Cédric Baumier, Camille La Fontaine, Giulia Fornasieri, Anne Bleuzen

Controlling the synthesis of mixed oxides is of great interest since their stoichiometry influences the properties. We present here the transformation of the Co4[Fe(CN)6]2.7 Prussian blue analogue (PBA) into the mixed Co1.8Fe1.2O4 spinel oxide, with a detailed characterization of the final phase (…

CrystEngComm, 2019, 21 (23), pp.3634-3643. ⟨10.1039/c9ce00427k⟩. ⟨hal-02187860⟩

  • Article dans une revue

A new route for preparing nanoporous Cu–Zn–Ni–Co alloy by electrodeposition and dealloying: Application as electrocatalysts for water reduction

Yuelin Xie, Antoine Miche, Vincent Vivier, Mireille Turmine

<div><p>Nanoporous Cu-Zn-Ni-Co alloys have been prepared on Cu foils by a two-step electrodeposition mechanism in ethylammonium nitrate (EAN), a protic ionic liquid, and ethaline, a deep eutectic solvent (DES). A porous alloy was then produced using a dealloying step. The…

International Journal of Hydrogen Energy, 2025, 127, pp.95 - 106. ⟨10.1016/j.ijhydene.2025.04.067⟩. ⟨hal-05041651⟩

  • Article dans une revue

Non-destructive investigation of fibronectin adsorption on titanium surfaces using PM-RAIRS: effect of surface hydroxylation

Stéphanie Boudesocque, Olivier Dargaud, Lorenzo Stievano, Christophe Méthivier, Jean-Francois Lambert, T. Coradin, Claire-Marie Pradier

Polarisation-modulation reflection-absorption infrared spectroscopy (PM-RAIRS) is a useful non-destructive technique to study semi-quantitatively the adsorption of proteins on metal surfaces. In this work, we employed PM-RAIRS to study the effect of the degree of hydroxylation of the surface of…

Surface and Interface Analysis, 2010, 42 (6-7), pp.466-470. ⟨10.1002/sia.3295⟩. ⟨hal-00558207⟩