Title: Direct synthesis of nanocrystalline, spherical α-Mn2O3 particles by mechanochemical reduction
Abstract: The preparation of nanocrystalline α-Mn2O3 by using the mechanochemical reduction of KMnO4 with NH4Cl in stoichiometric ratio 1:1 was investigated in this work. High-energy milling with ball to powder mass ratio 20:1 and centrifugal forces 60 g lead to the completion of the reaction between the reactants after 10 min. Further 15–60 min milling transforms the amorphous and hydrated Mn2O3 to the nanocrystalline α-Mn2O3 phase. This synthesis involves a direct preparing of α-Mn2O3 with spherical geometry and average XRD crystallite size above 50 nm.
Publication Year: 2008
Publication Date: 2008-03-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 14
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