CATALYTICALLY ACTIVE HYBRID POLYMER-OXIDE MATERIAL AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2020 - IPC B01J37/02 B01J23/24 B01J23/745 C25D11/34 

FIELD: chemistry.

SUBSTANCE: invention relates to technical electrochemistry, particularly to application of catalytically active layers of hybrid polymer-oxide material on steel articles. Described is a method of producing a catalytically active hybrid polymer-oxide material for decomposing hydrogen peroxide, comprising depositing catalytically active layers of hybrid material on steel, characterized in that hybrid polymer-oxide material on steel surface is formed based on molybdenum oxides MoO₃, MoO₂, Mo₁₈O₅₂, iron (III) oxide Fe₂O₃, as well as cobalt, nickel and iron molybdates CoMoO₄, NiMoO₄, FeMoO₄ immobilized in a matrix of polyvinylpyrrolidone, by deposition thereof from an aqueous electrolyte solution containing molybdenum, cobalt, nickel, iron and water-soluble polymer - polyvinylpyrrolidone at ratio of average for the period of cathode and anode currents of 1.3:1, pH 4–5, temperature of 60 °C, with following ratio of components (g⋅l^-1): ammonium heptamolybdate ((NH₄)₆ Mo₇O₂₄⋅4H₂O) 40.0–50.0, cobalt sulphate (CoSO₄⋅7H₂O) 80.0–100.0, iron (II) sulphate (FeSO₄⋅7H₂O) 6.0–12.0, nickel sulphate (NiSO₄⋅7H₂O) 20.0–30.0, cobalt chloride (CoCl₂⋅6H₂O) 10.0–16.0, boric acid (H₃BO₃) 20.0–30.0, citric acid (C₆H₈O₇) 3.0–4.0, polyvinylpyrrolidone ((C₆H₉NO)_n) 1.0–6.0.

EFFECT: invention is aimed at increase of catalytic activity of hybrid materials on steel surface, reduction of power inputs and labor intensity of hybrid materials production process.

2 cl, 1 ex