• Article dans une revue

EPR Characterization and Reactivity of Surface-Localized Inorganic Radicals and Radical Ions

Mario Chiesa, Elio Giamello, Michel Che

A review. The role of surface inorg. radicals and radical ions formed at the interface between a solid and a gas phase was discussed. The formation of such species is relevant to field such as electrochem., heterogeneous catalysts, photocatalysis and corrosion. The characterization of these…

Chemical Reviews, 2010, 110 (3), pp.1320-1347. ⟨10.1021/cr800366v⟩. ⟨hal-00604710⟩

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Investigating the DMPO-formate spin trapping method for the study of paper iron gall ink corrosion

Alice Gimat, Valeryia Kasneryk, Anne-Laurence Dupont, Sabrina Paris, Frederic Averseng, Jeanine Fournier, Pascale Massiani, Véronique Rouchon

Paper degradation by iron gall ink is a challenging issue for the conservation of ancient manuscripts. It is usually attributed to both FeII catalyzed oxidation and acid catalyzed hydrolysis of cellulose, yet the dominant degradation pathway remains an open question. In this work, electron spin…

New Journal of Chemistry, 2016, 40 (11), pp.9098-9110. ⟨10.1039/c6nj01480a⟩. ⟨hal-01502192⟩

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The antibacterial activity of Magainin I immobilized onto mixed thiols Self-Assembled Monolayers

Vincent Humblot, Jean-Fabrice Yala, Pascal Thebault, Kada Boukerma, Arnaud Héquet, Jean-Marc Berjeaud, Claire-Marie Pradier

An antibacterial peptide, Magainin I, was covalently bound to a mixed 11-mercaptoundecanoïc acid (MUA) and 6-mercaptohexanol (C6OH) (ratio 1:3) Self-Assembled Monolayer (SAM) on gold surfaces. Each step of the surface functionalization was characterized by Polarization Modulation Reflection…

Biomaterials, 2009, 30 (21), pp.3503-3512. ⟨10.1016/j.biomaterials.2009.03.025⟩. ⟨hal-04435299⟩

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Acidic zeolites and Al- SBA-15 as supports for sulfide phases: application to hydrotreating reactions.

Juliette Blanchard, Michèle Breysse, Katia Fajerwerg, Catherine Louis, Claude-Emmanuel Hédoire, Alvaro Sampieri, Shuangqin Zeng, Guy Perot, H. Nie, D. Li

Studies in Surface Science and Catalysis, 2005, 158, pp.1517-1524. ⟨10.1016/S0167-2991(05)80505-1⟩. ⟨hal-00288840⟩

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Controlled Formation of Native Defects in Ultrapure ZnO for the Assignment of Green Emissions to Oxygen Vacancies

Fredeŕic Averseng, Miao Zhang, Frederic Averseng, Jean-Marc Krafft, Patrizia Borghetti, Guylène Costentin, Slavica Stankic

Ultrapure ZnO nanopowders were synthesized via vapor-phase based methods under oxygen deficient conditions. The type and relative proportions of intrinsic point defects were studied by photoluminescence (PL) and EPR spectroscopies performed under strictly controlled conditions. Besides coupled PL/…

Journal of Physical Chemistry C, In press, 124 (23), pp.12696-12704. ⟨10.1021/acs.jpcc.0c01078⟩. ⟨hal-02896623⟩

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Microporous polyacrylate matrix containing hydrogen bonded nanotubular assemblies

Farid Ouhib, Emmanuelle Bugnet, Andrei Nossov, Jean-Luc Bonardet, Laurent Bouteiller

We report the straightforward photo-polymn. of polyacrylate films contg. bis-urea based self-assembled nanotubes. The obtained materials are characterized by gas adsorption measurements, 129Xe NMR spectroscopy and WAXS. The presence of the bis-ureas is shown by butane adsorption (at 273 K and…

Polymer, 2010, 51 (15), pp.3360-3364. ⟨10.1016/j.polymer.2010.05.047⟩. ⟨hal-00604788⟩

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Characterizations and performances of Ni/diatomite catalysts for dry reforming of methane

Karam Jabbour, Nissrine El Hassan, Anne Davidson, Pascale Massiani, Sandra Casale

Monometallic 5 wt% Ni containing catalysts were prepared by a two-solvent (cyclohexane/water) deposition method using cheap and widely available natural diatomites (Ni/AW2 and Ni/MN3) as supports. The fresh samples were characterized by SEM, EDX microanalysis, N2 adsorption–desorption isotherms,…

Journal Chemical Engineering, 2015, 264, pp.351-358. ⟨10.1016/j.cej.2014.11.109⟩. ⟨hal-01118933⟩

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Insights into bacteriophage T5 structure from analysis of its morphogenesis genes and protein components.

Yvan Zivanovic, Fabrice Confalonieri, Luc Ponchon, Rudi Lurz, Mohamed Chami, Ali Flayhan, Madalena Renouard, Alexis Huet, Paulette Decottignies, Alan R Davidson, Cécile Breyton, Pascale Boulanger

Bacteriophage T5 represents a large family of lytic Siphoviridae infecting Gram-negative bacteria. The low-resolution structure of T5 showed the T=13 geometry of the capsid and the unusual trimeric organization of the tail tube, and the assembly pathway of the capsid was established. Although major…

Journal of Virology, 2014, 88 (2), pp.1162-74. ⟨10.1128/JVI.02262-13⟩. ⟨hal-01130612⟩

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Amine degradation in CO₂ capture. 3. New degradation products of MEA in liquid phase: Amides and nitrogenous heterocycles

C. Gouedard, A. Rey, V. Cuzuel, J. Brunet, B. Delfort, D. Picq, J. Dugay, J. Vial, Valérie Pichon, Franck Launay, L. Assam, J. Ponthus, P. -L. Carrette

To reduce greenhouse gas emissions from fossil fuel power plants, post combustion CO2 capture with amine-based solvent is the most mature technology. Ethanolamine (MEA), the benchmark amine, is the most studied amine but some degradation products are still unknown and for an environmental…

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Molybdenum oxide catalysts for metathesis of higher 1-alkenes via supporting MoO2(acetylacetonate)2 and MoO2(glycolate)2 on SBA-15 mesoporous molecular sieves

Hynek Balcar, Diwa Mishra, E. Marceau, Xavier Carrier, Naděžda Žilková, Zdeněk Bastl

Applied Catalysis A : General, 2009, 359 (1-2), pp.129-135. ⟨10.1016/j.apcata.2009.02.037⟩. ⟨hal-03032165⟩