Contribution à l'étude de l'intercalation de chlorures de lanthanoïdes dans le graphite par voie hétérocomplexe

Abstract : Graphite Intercalation Compounds are useful for low dimensionality studies. Research developed here relates to the development and the physicochemical characterization of GICs with lanthanide chlorides (LnCl3-GICs), the latter constituting one of the last great classes hardly known of GICs. This work results from a bibliographical review leading to the choice of chlorides SmCl3, GdCl3, TbCl3, DyCl3, HoCl3. The development of a hetero-complex way of synthesis made it possible to optimize the conditions of synthesis of LnCl3-GICs of 2nd stage. These compounds are binaries or ternaries which can present structural correlations between free and intercalated chlorides. The magnetic behaviour of lanthanide chlorides and GICs associated was studied. In the free state, chlorides remain mainly paramagnetic between 2 and 300K. In the intercalated state, analyses reveal an attenuation of magnetic interactions.
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Sébastien Cahen. Contribution à l'étude de l'intercalation de chlorures de lanthanoïdes dans le graphite par voie hétérocomplexe. Autre [cond-mat.other]. Université Henri Poincaré - Nancy 1, 2005. Français. ⟨NNT : 2005NAN10157⟩. ⟨tel-01776025⟩

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