• Article dans une revue

Investigation of ion-selective electrodes with neutral ionophores and ionic sites by EIS. I. Theory

Claude Gabrielli, Patrick Hemery, Pierre Letellier, Michele Masure, Hubert Perrot, Marie-Isabelle Rahmi, Mireille Turmine

Models of an ion selective electrode involving an ionophore and mobile sites in a membrane are proposed. The first model, called the phase boundary potential model, supposed thermodynamic equilibrium; it allows the concentrations of the various species to be calculated. Then, a kinetic model, which…

Journal of Electroanalytical Chemistry, 2004, 570 (2), pp.275-289. ⟨10.1016/j.jelechem.2004.04.006⟩. ⟨hal-04197728⟩

• Article dans une revue

Revisiting Alkoxysilane Assembly on Silica Surfaces: Grafting versus Homo-Condensation in Solution

Yannick Millot, Antoine Hervier, Jihed Ayari, Naoures Hmili, Juliette Blanchard, Souhir Boujday

Silica surface functionalization is mandatory for a large variety of applications. This step is often done through the condensation of functional silanes on silanol, silica surfaces' terminal groups. Among these silanes, aminopropyltriethoxysilane (APTES) is widely used due to its assumed high…

Journal of the American Chemical Society, 2023, 145 (12), pp.6671-6681. ⟨10.1021/jacs.2c11390⟩. ⟨hal-04294801⟩

• Article dans une revue

Electrochemical and modelling study of ZrNbO alloys aged under high temperature and high pressure PWR simulated conditions

Duncan Peyret, Damien Kaczorowski, Milan Skocic, Bernard Tribollet, Vincent Vivier

This work proposes a kinetic study of Zirconium alloy when working under controlled temperature and pressure conditions to simulate pressurized water reactor (PWR) conditions. A detailed analysis of the experimental results allowed to describe each time constant observed on the impedance diagrams.…

Corrosion Science, 2023, 224, pp.111505. ⟨10.1016/j.corsci.2023.111505⟩. ⟨hal-04294174⟩

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The influence of the preparation procedures on the catalytic activity of Fe-BEA zeolites in SCR of NO with ammonia and N2O decomposition

Paweł Boroń, Lucjan Chmielarz, Jacek Gurgul, Kazimierz Łątka, Barbara Gil, Jean-Marc Krafft, Stanislaw Dzwigaj

Three series of Fe-containing BEA zeolites are prepared by two-step postsynthesis (PS), ion exchange (IE) and conventional wet impregnation (Imp) procedures with various Fe content (1.0–4.0 Fe wt.%). In these series of zeolites iron is mainly present as pseudo-tetrahedral Fe(III) as evidenced by…

Catalysis Today, 2014, 235, pp.210-225. ⟨10.1016/j.cattod.2014.03.018⟩. ⟨hal-01117136⟩

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Pulsed field gradient NMR studies of n-hexane diffusion in MCM-41 materials

Ziad Adem, Flavien Guenneau, Marie-Anne Springuel-Huet, Juliette Blanchard, Antoine Gedeon

The knowledge of transport properties in heterogeneous catalysis is of important interest since the selectivity and the activity depend significantly on diffusion. Pulsed Field Gradient (PFG) NMR has proved to be a valuable tool to probe the intracrystalline diffusion of molecules adsorbed in…

Studies in Surface Science and Catalysis, 2006, XX, pp.XXX. ⟨hal-00112009⟩

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Influence of Dealumination by Acetylacetone on Acidity and Activity of Amorphous Silica-Aluminas

Xiaojing Jin, Yannick Millot, Céline Sayag, Juliette Blanchard, Pascal Ping Man

The influence of dealumination of two commercial amorphous silica-aluminas (ASAs) with acetylacetone on their textural properties, acidity and catalytic activity was studied by N2-sorption, NH3-TPD, FTIR of adsorbed pyridine as well as 1 H and 27 Al MAS NMR. Acetylacetone treatment increases the…

ChemistrySelect, 2020, 5 (8), pp.2489-2495. ⟨10.1002/slct.201904712⟩. ⟨hal-02919070⟩

• Communication dans un congrès

Nanocastings" : silices nanoporeuses SBA en tant que moules pour obtenir des nano-objets (particules-fils) d'oxydes des métaux de transition

Marianne Imperor-Clerc, Dominique Bazin, Vincent Dupuis, Regine Perzynski, Virginie Escax, Anne Davidson

Colloque nanohybrides2 (GDR 2486), Jun 2005, Autrans, France. ⟨hal-00172347⟩

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Selectivities in Adsorption and Peptidic Condensation in the (Arginine and Glutamic Acid)/Montmorillonite Clay System

Maguy Jaber, Thomas Georgelin, Houssein Bazzi, France Costa-Torro, Jean-François Lambert, Gérard Bolbach, Gilles Clodic

The present study examines the selective adsorption and polymerization of two amino acids, glutamic acid (Glu) and arginine (Arg), on a cationic clay mineral, montmorillonite (Mt). Two experimental procedures were used: selective adsorption and wet impregnation. In the first case, an adsorption…

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 2014, 118 (44), pp.25447-25455. ⟨10.1021/jp507335e⟩. ⟨hal-01121644⟩

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Chromium-Salophen as a Soluble or Silica-Supported Co-Catalyst for the Fixation of CO2 Onto Styrene Oxide at Low Temperatures

Matthieu Balas, Ludivine K/bidi, Franck Launay, Richard Villanneau

Addition of a soluble or a supported Cr III-salophen complex as a co-catalyst greatly enhances the catalytic activity of Bu 4 NBr for the formation of styrene carbonate from styrene epoxide and CO 2. Their combination with a very low co-catalyst:Bu 4 NBr:styrene oxide molar ratio 1:2:112 (…

Frontiers in Chemistry, 2021, 9 (765108), ⟨10.3389/fchem.2021.765108⟩. ⟨hal-03443129⟩

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Photocatalytic Easy Recovery of Orthophosphates Contaminants in Water Using Amberlite‐732 Cationic‐Resin Exchanged by Ce 3+ and Ce 3+ ‐Au 3+ Species

Phds. Nawel Rahmoune, Siham Barama, Anne Davidson, David Montero, Mohamed Selmane, Antoine Miche, Fouad Benaliouche, Akila Barama

This report discusses the efficiency of photo-recovery of orthophosphate anions in water under visible irradiation using materials containing amorphous carbon, ceria and gold-ceria species. Catalysts were obtained by the exchange of Amberlite-732 polymeric-resin with isolated Ce(III) and co-mixing…

ChemistrySelect, 2022, 7 (13), ⟨10.1002/slct.202104577⟩. ⟨hal-04030648⟩