METHOD OF PRODUCING NANOSTRUCTURED NICKEL HYDROXIDE Russian patent published in 2020 - IPC C01G53/04 B82Y30/00 C01B32/372 B01J23/755 H01M4/52 

FIELD: technological processes.

SUBSTANCE: invention can be used in production of materials for fuel cells and supercondensers. Method of producing nanostructured nickel hydroxide involves precipitation thereof in the presence of chitosan from a reaction mixture containing hexaqua nickel (II) chloride solution and a urea solution. Content of urea (NH₂)₂CO and hexaqua nickel chloride NiCl₂⋅6H₂O in the reaction mixture is, mol/l: NiCl₂⋅6H₂O 0.07–0.5, (NH₂)₂CO 0.5–2.0. Chitosan is introduced into reaction mixture in amount of 0.1–0.2 wt% in form of 2 % solution in 0.01 M hydrochloric acid. Deposition is carried out in an open vessel at 90–95 °C for 8.0–9.0 hours. Obtained gel-like residue after cooling to room temperature is filtered under vacuum, washed, dried in air and subjected to heat treatment at 100–105 °C for 50–60 min to obtain α-phase of nickel hydroxide Ni(OH)₂.

EFFECT: invention enables to ensure homogeneous deposition of nickel hydroxide Ni(OH)₂ with formation of a stable α-phase with simplification of the method and its hardware, reduced time consumption.

3 cl, 1 dwg, 1 tbl, 4 ex