Objetivo The swollen liquid crystals can be used as soft templates for synthesis of nanomaterials. These swollen phases can be doped with metal ions at very high concentration without perturbing the initial structure. Our previous studies on lyotropic liquid crystalline phases (hexagonal or lamellar) with anionic surfactants have shown that it is possible to obtain nano materials (metals, oxides or polymers) of various morphology: fibres, nanowires, lameis... within these confined systems. The present project is aimed at the synthesis of metallic nanostructures (using chemical and radiolytic reduction techniques), their characterisation and properties. The idea is to extend the synthesis to other liquid crystalline phases (hexagonal, cubic and sponge) obtained with cationic and nonionic surfactants and doped with various metals : Pt, Pd, Sn, Ag, Co, Ni. Small Angle X-ray Scattering experiments will allow us to analyse the structural characteristics of the doped liquid cystals. Chemical and radiolytic methods will be used to reduce the metal ions inside the mesophases and to obtain metallic nanomaterials of various shapes. First reduction and aggregation steps will be studied by nanosecond pulse radiolysis. Various techniques will be used to characterise these metallic nanomaterials: TEM, EELS, XPS, SAXS, AFM...We will be studying the relationship between the morphology and the catalytic activity of these nanomaterials. Ámbito científico natural scienceschemical sciencespolymer sciencesengineering and technologynanotechnologynano-materialsnatural scienceschemical sciencesnuclear chemistryradiation chemistryengineering and technologymaterials engineeringliquid crystals Programa(s) FP6-MOBILITY - Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006 Tema(s) MOBILITY-2.3 - Marie Curie Incoming International Fellowships (IIF) Convocatoria de propuestas FP6-2002-MOBILITY-7 Consulte otros proyectos de esta convocatoria Régimen de financiación IIF - Marie Curie actions-Incoming International Fellowships Coordinador UNIVERSITE PARIS XI Aportación de la UE Sin datos Dirección 15 Rue Geaorges Clemenceau, Universite Paris XI ORSAY Francia Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos
