METHOD OF PRODUCING MANGANESE OXIDE MnO NANOPOWDER Russian patent published in 2024 - IPC C01G45/02 B82B3/00 B82Y40/00 B01J3/04 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry and can be used in making effective electrode materials for lithium- and zinc-ion current sources, supercapacitors, oxidation catalysts, as well as antibacterial and anticancer drugs. Reaction mixture is prepared containing an aqueous solution of potassium permanganate KMnO₄ and an organic compound in form of tartaric acid C₄H₆O₆, with molar ratio of 2:1. Prepared reaction mixture is subjected to hydrothermal treatment at temperature of 160–200 °C and pressure of 10–20 bar for 5–20 minutes in conditions of microwave radiation with frequency of 2.45 GHz and power of 15–20 W with constant stirring at speed of 100–300 rpm. Formed precipitate is filtered, washed and dried.

EFFECT: obtained particles of manganese oxide nanopowder Mn₃O₄ are characterized by high specific surface area of 75 m²/g, monomodal distribution of pores with predominance of mesopores with size of 22 nm, the volume of which is 0,37 cm³/g, with no agglomeration of particles.

1 cl, 3 dwg, 3 ex