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MgO nanoparticles have been prepared via hydroxide precipitation from aqueous solutions, followed by the thermal decomposition of the hydroxide. The nanoparticles inherit the platelike shape from the hydroxide and break into isometric particles upon significant superheating. The particle size of the synthesized magnesium oxide powders varies from 30 to 75 nm, depending on the annealing temperature.
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Федоров et al. (2007) studied this question.
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