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Article dans une revue
Synthesis of manganese spinel nanoparticles at room temperature by coprecipitation
Abstract : This paper is focused on a new route to synthesize Mn3O4 nanoparticles by alkalisation by sodium hydroxide on a manganeous solution at room temperature. The precipitates obtained at different pH values have been characterized by XRD and TEM. Since the first addition of sodium hydroxide, a white Mn(OH)2 precipitate appears. At pH=7, γ-MnOOH phase is predominant with needle like shaped particles. At pH=10, hausmanite nanoparticles, which exhibits well defined cubic shape in the range 50-120 nm are obtained. This new precipitation route is a fast and easy environmentally friendly process to obtain well crystallized hausmanite nanoparticles.
https://hal-brgm.archives-ouvertes.fr/hal-00824358
Contributeur : Alain Seron Connectez-vous pour contacter le contributeur
Soumis le : mardi 21 mai 2013 - 15:47:06
Dernière modification le : lundi 11 octobre 2021 - 13:02:02
Contributeur : Alain Seron Connectez-vous pour contacter le contributeur
Soumis le : mardi 21 mai 2013 - 15:47:06
Dernière modification le : lundi 11 octobre 2021 - 13:02:02