Laboratoire de réactivité de surface

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  • Article dans une revue

Simple Fabrication of ϵ‐Fe2O3 Nanoparticles Containing Silica Monoliths with Enhanced Coercivity

Laura Altenschmidt, Patricia Beaunier, Amélie Bordage, Eric Rivière, Giulia Fornasieri, Anne Bleuzen

Most of large-size permanent room-temperature hard magnets contain rare-earth elements. Here, we present the preparation of a large-size rare-earth free hard magnet based on the loading of the ordered mesoporosity of a preformed ordered mesoporous silica monolith obtained by a sol-gel route with…

ChemNanoMat, 2023, 9 (2), pp.e202200469. ⟨10.1002/cnma.202200469⟩. ⟨hal-04030789⟩

  • Article dans une revue

Redox-Triggered Control of Cell Adhesion and Deadhesion on Poly(lysine)- g -poly(ethylene oxide) Adlayers

Louise Hespel, Julien Dupré de Baubigny, Pierre Lalanne, Simon de Beco, Mathieu Coppey, Catherine Villard, Vincent Humblot, Emmanuelle Marie, Christophe Tribet

Spontaneous adsorption of poly(lysine)-g-poly(ethyleneglycol) comb-like copolymers (PLL-g-PEG) is a versatile mean to coat substrates with polymer layers that resist cell adhesion. We prepared redox cleavable PLL-g-PEG to switch adhesion on demand. Redox sensitivity was obtained by introducing…

ACS Applied Bio Materials, 2019, 2 (10), pp.4367-4376. ⟨10.1021/acsabm.9b00601⟩. ⟨hal-02301433⟩

  • Article dans une revue

Mn-analcime: Synthesis, characterization and application to cyclohexene oxidation

Amal Bejar, Semy Ben Chaabene, Maguy Jaber, Jean-François Lambert, Latifa Bergaoui

The hydrothermal synthesis of Mn-analcime was performed by mixing manganese(II) carbonate, silicic acid and aluminum nitrate in a basic medium in the 120–175 °C temperature range for 6–72 h. Different Mn/Al ratios were used. The obtained samples were characterized by powder XRD, N2 physical…

Microporous and Mesoporous Materials, 2014, 196, pp.158-164. ⟨10.1016/j.micromeso.2014.05.004⟩. ⟨hal-01121654⟩

  • Chapitre d'ouvrage

Chimie : un vecteur vert

Jacques Maddaluno, Claire-Marie Pradier, Anne Imberty, Dominique Massiot

Les faits, longtemps sujets à discussion, sont désormais là. Le cinquième rapport du GIEC (2013) qualifie d'« extrêmement probable » un lien entre les dérèglements climatiques observés depuis 1950 et les variations de la composition de l'atmosphère terrestre provoqués par l'…

Bettina Laville, Stéphanie Thiébault, Agathe Euzeun. Quelles solutions face au changement climatique ?, CNRS-Editiion, pp.220-228, 2015, Quelles solutions face au changement climatique ?, 978-2-271-08924-3. ⟨hal-01227953⟩

  • Article dans une revue

Novel synthetic bis-indolic derivatives with antistaphylococcal activity, including against MRSA and VISA strains

Yvan Caspar, Matthieu Jeanty, Jérôme Blu, Olga Burchak, Emmanuelle Le Pihive, Laure Maigre, Dominique Schneider, Claude Jolivalt, Jean-Marc Paris, Arnaud Hequet, Frédéric Minassian, Jean-Noël Denis, Max Maurin

Abstract Objectives We report the synthesis, antibacterial activity and toxicity of 24 bis-indolic derivatives obtained during the development of new ways of synthesis of marine bis-indole alkaloids from the spongotine, topsentin and hamacanthin classes. Methods Innovative ways of synthesis and…

Journal of Antimicrobial Chemotherapy, 2015, 70 (6), pp.1727-1737. ⟨10.1093/jac/dkv015⟩. ⟨hal-04682105⟩

  • Article dans une revue

Selective Formation of Epoxylimonene Catalyzed by Phosphonyl/Arsonyl Derivatives of Trivacant Polyoxotungstates at Low Temperature

Ourania Makrygenni, Louise Vanmairis, Sabrina Taourit, Franck Launay, Alain Shum Cheong Sing, Anna Proust, Hélène Gérard, Richard Villanneau

The catalytic performances of three organophosphonyle/arsonyle derivatives of POMs were evaluated for the epoxidation of limonene in acetonitrile, using aqueous H2O2 as the oxidant. All three W-based POMs catalysts operated without any additional transition-metal ions and displayed excellent…

European Journal of Inorganic Chemistry, 2019, 2020 (7), pp.605-612. ⟨10.1002/ejic.201901152⟩. ⟨hal-02426557⟩

  • Thèse

Electrodeposition of Co, Ni-based Alloys in Ionic Solutions and their Electrocatalytic Propert, Électrodéposition de alliages à base de Co, Ni en solutions ioniques et leurs propriétés électrocatalytiques

Yuelin Xie

The use of fossil energy, one of the main contributors to carbon emissions and a major source of pollution, has become a hot topic of discussion in recent years. Predicted energy shortages and the resulting environmental challenges are forcing mankind to look for alternatives to fossil fuels.…, Le développement de diverses applications utilisant l’hydrogène en tant que vecteur énergétique ouvre des voies prometteuses pour l'avenir. L’hydrogène peut être produit de différentes manières, l’une d’entre elles est l’électrolyse de l’eau et plus particulièrement sa réduction qui conduit à…

Theoretical and/or physical chemistry. Sorbonne Université, 2023. English. ⟨NNT : 2023SORUS560⟩. ⟨tel-04800207⟩

  • Article dans une revue

Influence of the nature of the reducible support on CO oxidation kinetics of supported Rhd+ catalysts: SnO2 versus Ce0.68Zr0.32O2

Céline Fontaine-Gautrelet, Cyril Thomas, Gérald Djéga-Mariadassou

CO-O2 kinetics was studied on Rh(0.3wt%)/SnO2 and compared with that reported previously on Rh/Ce0.68Zr0.32O2. The lower oxygen mobility on SnO2 and the stronger bonding of CO with the RhΔ+ sites of Rh/SnO2, are suggested to account for the lower CO oxidation activity of Rh/SnO2 compared with that…

Topics in Catalysis, 2007, 42-43, pp.363-366. ⟨10.1007/s11244-007-0206-y⟩. ⟨hal-00157011⟩

  • Article dans une revue

Bimetallic Phosphide (Ni,Cu) 2 P Nanoparticles by Inward Phosphorus Migration and Outward Copper Migration

Anh-Minh Nguyen, Mounib Bahri, Sébastien Dreyfuss, Simona Moldovan, Antoine Miche, Christophe Méthivier, Ovidiu Ersen, Nicolas Mézailles, Sophie Carenco

Bimetallic phosphide nanoparticles are drawing a great interest as a family of nanomaterials. Controlling their fine features such as surface composition, core crystal structure and overall composition is a key to further application. Copper and nickel are particularly interesting first-raw metals…

Chemistry of Materials, 2019, 31 (16), pp.6124-6134. ⟨10.1021/acs.chemmater.9b01505⟩. ⟨hal-02273119⟩

  • Thèse

Spectroscopies à l'échelle de la molécule individuelle : dynamique de force pour l'interaction d'oligopeptides sur or et diffusion Raman exaltée par effet de pointe sur rotaxanes, Spectroscopy on the scale of the individual molecule: dynamics of strength for the interaction of oligopeptides on gold and distribution Raman excited by state-of-the-art effect on rotaxanes

Marie Steffenhagen

Au-delà de la simple imagerie, les techniques de champ proche permettent sonder des interactions moléculaires de manière contrôlée sur un nombre réduit de molécules, voire une seule. Dans ce sujet, deux techniques de spectroscopie à sonde locale ont été mises à profit. D’une part, la spectroscopie…, Beyond simply imaging, near-field techniques allow to probe and control molecular interactions onto a reduced number of molecules, if not a single one. In this subject, we took advantage of two local-probe spectroscopies. On the one hand, dynamic force spectroscopy (AFM-DFS) was applied to measure…

Chimie théorique et/ou physique. Université Pierre et Marie Curie (Paris 6), 2016. Français. ⟨NNT : ⟩. ⟨tel-01617853⟩