“…Metal oxides are the largest part of powdered nanomaterials. Among the methods to obtain functional metal oxide materials, those of special interest include non-equilibrium pathways, like self-propagating, high-temperature synthesis, mechanochemical, plasma-chemical syntheses, electrical explosion of wires, electrospark erosion method, and electrochemical methods [1][2][3][4][5][6]. It is due to the defective structure and high internal energy storage of such materials, which cause high reactivity to phase transformations of metal oxides and their use in various processes.…”