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Evolution of nickel speciation from aqueous solution to the surface of Ni/SiO2: effect of the number of chelating ligands in [Ni(en)x(H2O)6-2x]2+

Michel Che, Eric Marceau, Ke Qiang Sun

The evolution of nickel speciation during the successive preparation steps of Ni–SiO2 catalysts is studied by UV-Vis-NIR, FT-IR, DTG, TPR and TEM. The study focuses on the effect of the number of chelating ligands in the precursor complexes [Ni(en)x(H2O)(6 2x)]2+ (en = ethylenediamine, x = 1, 2, 3…

Physical Chemistry Chemical Physics, 2006, 8, pp.1731-1738. ⟨10.1039/b513319j⟩. ⟨hal-00109406⟩

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Transition-Metal-Free Catalysts for the Sustainable Epoxidation of Alkenes: From Discovery to Optimisation by Means of High Throughput Experimentation

Warunee Lueangchaichaweng, Inge Geukens, Annelies Peeters, Benjamin Jarry, Franck Launay, Jean-Luc Bonardet, Pierre A. Jacobs, Paolo P. Pescarmona

Abstract: Transition-metal-free oxides were studied as heterogeneous catalysts for the sustainable epoxidation of alkenes with aqueous H2O2 by means of high throughput experimentation (HTE) techniques. A full-factorial HTE approach was applied in the various stages of the development of the…

Combinatorial Chemistry and High Throughput Screening, 2012, 15, pp.140-151. ⟨10.2174/138620712798868338⟩. ⟨hal-00757239⟩

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Alternated p-Conjugated Polymers Based on a 1,2- Diiminocyclohexane Chiral Unit for Nitroaromatics Sensing

Simon Clavaguera, Olivier J. Dautel, Lionel Hairault, Christophe Méthivier, Pierre Montméat, Eric Pasquinet, Claire-Marie Pradier, Françoise Serein-Spirau, Salem Wakim, Florian Veignal, Joël J.E. Moreau, Jean-Pierre Lère-Porte

The detection of 2,4-dinitrotoluene (DNT) by fluorescence quenching of a new class of polyimines consisting in p-conjugated segments regularly alternated with chiral C2 symmetry units has been studied for solutions and thin films. Their photophysical properties and their sensitivity towards DNT…

Journal of Polymer Science Part A: Polymer Chemistry, 2009, pp.xxx, xxx. ⟨10.1002/pola.23474⟩. ⟨hal-00394190⟩

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From Al2O3-supported Ni(II)-ethylenediamine complexes to CO hydrogenation catalysts: Characterization of the surface sites and catalytic properties

Eric Marceau, Axel Löfberg, Jean-Marc Giraudon, Fabien Négrier, Michel Che, Lucien Leclercq

Applied Catalysis A : General, 2009, 362, pp.34-39. ⟨10.1016/j.apcata.2009.04.029⟩. ⟨hal-00412330⟩

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Surface chemistry and surface reactivity of fibrous amphiboles that are not regulated as asbestos

M. Fantauzzi, M. Pacella, J. Fournier, A. Gianfagna, G. B. Andreozzi, A. Rossi

Three fibrous amphiboles that are not regulated as asbestos--two from Biancavilla (Sicily, Italy) and one from Libby (MT, USA)--were studied in order to establish relationships between surface chemistry and surface reactivity. The three fibrous samples, plus one prismatic fluoro-edenite from…

Analytical and Bioanalytical Chemistry, 2012, 404, pp.821-833. ⟨10.1007/s00216-012-6190-5⟩. ⟨hal-00805738⟩

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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⟩

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Probing the Binding Mechanism of Peptides on a Copper Surface: Multi layer Self-Assembly Promoted by Glutamate Residues

Christophe Methivier, Victor Lebec, Jessem Landoulsi, Claire-Marie Pradier

Short peptides interact strongly with copper surfaces We report here a full characterization on the Interaction of Gly-Pto and the Cu(110) surface: By combining infrared analysis with X-ray photoelectron spectroscopy, two binding centers have been identified: the carboxylate and the amino groups…

Journal of Physical Chemistry C, 2011, 115 (10), pp.4041-4046. ⟨hal-00602943⟩

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A General Solution Route toward Metal Boride Nanocrystals

David Portehault, Sarala Devi, Patricia Beaunier, Christel Gervais, Cristina Giordano, Clément Sanchez, Markus Antonietti

Angewandte Chemie International Edition, 2011, 50 (14), pp.3262-3265. ⟨10.1002/anie.201006810⟩. ⟨hal-02923117⟩

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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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Crystalline Molybdenum Oxide Layers as Efficient and Stable Hole Contacts in Organic Photovoltaic Devices

Mehrad Ahmadpour, André Fernandes Cauduro, Christophe Méthivier, Birgit Kunert, Chiara Labanti, Roland Resel, Vida Turkovic, Horst-Günter Rubahn, Nadine Witkowski, Andreas K. Schmid, Morten Madsen

ACS Applied Energy Materials, 2018, 2 (1), pp.420-427. ⟨10.1021/acsaem.8b01452⟩. ⟨hal-02097260⟩