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Journal Articles Journal of Solid State Chemistry Year : 2012

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.

Dates and versions

hal-00824358 , version 1 (21-05-2013)

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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, 2012, 192, pp.109-112. ⟨10.1016/j.jssc.2012.04.006⟩. ⟨hal-00824358⟩
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