Preparation of Mn-Co Carbonate Spherical Particles by Interfacial Reaction Method
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概要
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The spherical particles of Mn-Co carbonate were prepared by an interfacial reaction method, in which the carbonate was formed by the reaction of MnSO<SUB>4</SUB> and CoSO<SUB>4</SUB> aqueous solution emulsified in benzene with NaHCO<SUB>3</SUB> aqueous solution. The particle size distribution, DTA-TG curves, X-ray diffraction patterns, specific surface area, and pore volume were measured to clarify the properties of the spherical particles.<BR>It was investigated that the Mn-Co carbonate spherical particles were formed by the interfacial reaction method as a solid solution of MnCO<SUB>3</SUB> and CoCO<SUB>3</SUB>. The particles were composed of microcrystals of MnCO<SUB>3</SUB> and CoCO<SUB>3</SUB> and possessed porous structure. Specific surface area of them increased with the increase of Co content. By a heat treatment, the particle shape did not change and the particle size changed very slightly.
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