22 research outputs found

    Matériaux hybrides organique-inorganique (Etude de la polycondensation à partir de groupements hydroxy)

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    MONTPELLIER-BU Sciences (341722106) / SudocSudocFranceF

    A new solution route for the synthesis of silicon nanoparticles presenting different surface substituents

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    International audienceThis paper describes a new solution route for the preparation of silicon nanoparticles functionalized at the surface using potassium incorporated in graphite (C8K) as reducing agent of silicon tetrachloride (SiCl4). In a first step, chloride,capped silicon nanoparticles were obtained. They allowed an easy access, in a second step, to a range of surface functionalities by simple nucleophilic substitutions: hydroxy, alkyl, alkoxy or amino groups. They were characterized by FTIR, 1H, 13C and 29Si NMR. A mean diameter of 13nm was found for these particles
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