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Nanodispersion et développement de traceurs fluorescents

Abstract : The dispersion of inorganic materials in organic and aqueous media is a decisive factor for their industrial implementation. These materials are used in many areas from the oil industry to polishing. Herein, we focus on studying the stability of these materials in different media such as: (i) the aqueous solvents used for the formulation of abrasive slurries, (ii) the waters of oil operations and (iii) crude oil and its derivatives. Our objective is to improve the luminescence properties of these materials for the oil industry and the abrasive properties for polishing applications.We have developed stable formulations of lanthanide complexes (Ln) derived from DOTA and nanoparticles (NPs) of zinc sulfide doped with manganese for water-management in oil fields. These materials were characterized by time-resolved fluorescence (TRF) to solve the problems associated with the auto-fluorescence of petroleum products in the operating water.Furthermore, we studied the dispersion of specific compounds in different fuels in order to develop new anti-counterfeiting markers for crude oil and its derivatives. Finally, we tried to improve the dispersion of diamond nanoparticles in aqueous media in order to enhance the efficiency of diamond abrasive suspensions based for polishing sapphire a-plan
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Mahmoud Ould Metidji. Nanodispersion et développement de traceurs fluorescents. Chimie analytique. Université de Lyon, 2016. Français. ⟨NNT : 2016LYSE1188⟩. ⟨tel-02003625⟩

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