• Article dans une revue

Beyond simple AB diblock copolymers: application of bifunctional and trifunctional RAFT agents to PISA in water

Gaëlle Mellot, Patricia Beaunier, Jean-Michel Guigner, Laurent Bouteiller, Jutta Rieger, François Stoffelbach

The influence of the macro-RAFT agent architecture on the morphology of the self-assemblies obtained by aqueous RAFT dispersion polymerization in PISA is studied by comparing amphiphilic AB diblock, (AB)2 triblock and triarm-star shaped (AB)3 copolymers, constituted of N,N-dimethylacrylamide (DMAc…

Macromolecular Rapid Communications, 2019, 25 (12), ⟨10.1002/marc.201800315⟩. ⟨hal-02404754⟩

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Covalent shaping of polyoxometalate molecular films onto ITO electrodes for charge trapping induced resistive switching

Raphaël Salles, Wei Church Poh, Maxime Laurans, Florence Volatron, Antoine Miche, Sandra Alves, Christian Carino, Ludovic Tortech, Guillaume Izzet, Pooi See Lee, Anna PROUST

As nano-sized molecular oxides, polyoxometalates (POMs) hold great promise in non-volatile memory materials based on redox-active molecules. Materials processed from solution, by drop-casting, by embedding POMs in polymers, or using Layer-by-Layer deposition techniques have thus been reported and…

Inorganic Chemistry Frontiers, 2024, 11 (1), pp.255-268. ⟨10.1039/d3qi01761c⟩. ⟨hal-04361172⟩

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Stability and degradation of PEO₂₀PPO₇₀PEO₂₀ triblock copolymers in mesostructured silica

Brindusa Dragoi, Guillaume Laurent, Sandra Casale, Taissire Benamor, Bénédicte Lebeau, Cédric Boissière, François Ribot, Mohamed Selmane, Patrick Schmidt, David Kreher, Anne Davidson

Organic−inorganic hybrid mesostructured silicas are prepared, without stirring (at pH = 0.0) and with stirring (at pH = 0.6) to obtain isolated and gyroidal-like attached silica grains with incorporated triblock P123 poly (ethylene oxide)-poly (propylene oxide)–poly (ethylene oxide) copolymers.…

• Article dans une revue

Intracellular biosynthesis of superparamagnetic 2-lines ferri-hydrite nanoparticles using Euglena gracilis microalgae

Roberta Brayner, Thibaud Coradin, Patricia Beaunier, Jean-Marc Greneche, Chakib Djediat, Claude Yéprémian, Alain Couté, Fernand Fievet

The intracellular biosynthesis of superparamagnetic (blocking temperature 5.6 K) 2-lines ferrihydrite (Fh2L) nanoparticles was observed within living Euglena gracilis microalgae.

Colloids and Surfaces B: Biointerfaces, 2012, 93, pp.20-23. ⟨10.1016/j.colsurfb.2011.10.014⟩. ⟨hal-00750391⟩

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Mueller micropolarimeter for color imaging of aluminium metasurfaces

M. Nicolas, I. Soumahoro, L. Zhang, G. Guida, W. Daney de Marcillac, D. Demaille, C. Schwob, S. Boujday, Bruno Gallas

Many anticounterfeiting tags rely on images intricate in different color and/or different polarization states to create optical effects invisible in conventional observation conditions. We build here an imaging micropolarimeter based on the dual rotating compensator system and using the color…

Journal of the Optical Society of America B, 2021, 38 (4), pp.1184. ⟨10.1364/JOSAB.416833⟩. ⟨hal-03178348⟩

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Emergence of Order in Origin-of-Life Scenarios on Mineral Surfaces: Polyglycine Chains on Silica

Ola El Samrout, Marco Fabbiani, Gloria Berlier, Jean-François Lambert, Gianmario Martra

The polymerization of amino acids (AAs) to peptides on oxide surfaces has attracted interest owing to its high importance in biotechnology, prebiotic chemistry, and origin of life theories. However, its mechanism is still poorly understood. We tried to elucidate the reactivity of glycine (Gly) from…

Langmuir, 2022, 38 (50), pp.15516-15525. ⟨10.1021/acs.langmuir.2c02106⟩. ⟨hal-04025462⟩

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Corrosion and protection of high leaded tin bronze covered with patina in NaHCO3 + Na2SO4 solution simulating acid rain in urban environment

Kamal Rahmouni, Suzanne Joiret, Luc Robbiola, A. Srhiri, Hisasi Takenouti, Vincent Vivier

An experimental procedure for obtaining reproducible patina on high leaded tin bronze, B66 (Cu-8Sn-14Pb in wt %) has been devised, followed by its isolation from the substrate and examination of the electrochemical behaviour in a solution of 0.2 g.L - 1 Na 2 SO 4 + 0.2 g.L - 1 NaHCO 3 acidified to…

Bulgarian Chemical Communications, 2005, 37 (1), pp.26-34. ⟨hal-04189329⟩

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Ni-Silica-based Catalysts for CH4 Reforming by CO2 with Enhanced Stability: Recent Designs and the Impacts of Ni Confinement, Promoters, and Core-Shell Structures

Oscar Daoura, Maya Boutros, Franck Launay

CO2 reforming of CH4, also referred to as the Dry Reforming of Methane (DRM), is considered an excellent method to produce H2 and CO (syngas), which are known to be used for the production of higher alkanes and oxygenates. Despite nickel’s moderate toxicity, Ni-based heterogeneous catalysts are…

Journal of Energy and Power Technology, 2021, 3 (1), ⟨10.21926/jept.2101007⟩. ⟨hal-04025299⟩

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Plasmonic Ru/hydrogen molybdenum bronzes with tunable oxygen vacancies for light-driven reduction of p -nitrophenol

Haibo Yin, Yasutaka Kuwahara, Kohsuke Mori, Michel Che, Hiromi Yamashita

Plasmonic Ru/H x MoO 3−y hybrids enable significant plasmon-enhanced catalysis for reduction of p -nitrophenol under visible light irradiation.

Journal of Materials Chemistry A, 2019, 7 (8), pp.3783-3789. ⟨10.1039/C8TA11604K⟩. ⟨hal-04022363⟩

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On the origin of the optimum loading of Ag on Al2O3 in the C3H6-SCR of NOx

Tesnim Chaieb, Laurent Delannoy, Catherine Louis, Cyril Thomas

Ag/Al2O3 catalysts synthesized by the common impregnation technique with various Ag loadings were characterized by the NOx-Temperature-Programmed Desorption (TPD) method and their catalytic performances were evaluated in the selective catalytic reduction of NOx by propene (C3H6-SCR). It was found…

Applied Catalysis B: Environmental, 2013, 142-143, pp.780-784. ⟨10.1016/j.apcatb.2013.06.010⟩. ⟨hal-00907584⟩