Mechanochemical Oxidation of Aluminum: Formation of the Porous Structure of Aluminum Hydroxides and Oxides

Abstract

The main characteristics of aluminum oxides and hydroxides obtained by mechanochemical oxidation of aluminum powder, both in the initial state and after their heat-treatment in the interval 150 – 1100°C, are compared. The conditions for obtaining pseudoboehmite by thermal activation of mechanically oxidized product were established. The structure, morphology, and texture of the pseudoboehmite structure of aluminum hydroxide synthesized from mechanically oxidized product and aluminum oxides obtained on its basis in the temperature interval 450 – 1100°C are characterized.