Mechanism of the Nanocrystals Formation of the Spinel Structure in the MgO-Al2O3-H2O System under the Hydrothermal Conditions

摘要

Using the method of hydrothermal synthesis,the nanoparticles of magnesium-aluminum spinel were obtained with a crystallite size of 40-50 nm. The sequence was determined of the chemical transformations under hydrothermal conditions of the initial magnesium-aluminum hydroxides obtained by co-precipitation, leading to the formation of nanoparticles MgAl2O4.