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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.
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https://hal-brgm.archives-ouvertes.fr/hal-00824358
Contributeur : Alain Seron <>
Soumis le : mardi 21 mai 2013 - 15:47:06
Dernière modification le : lundi 27 avril 2020 - 19:02:33

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Fabien Giovannelli, Cecile Autret, Catherine Mathieu, Tatiana Chartier, Fabian Delorme, et al.. Synthesis of manganese spinel nanoparticles at room temperature by coprecipitation. Journal of Solid State Chemistry, Elsevier, 2012, 192, pp.109-112. ⟨10.1016/j.jssc.2012.04.006⟩. ⟨hal-00824358⟩

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