METHOD OF MAKING ELECTRODE FOR ELECTROCHEMICAL PROCESSES Russian patent published in 2010 - IPC C25B11/04 C25B11/10 

FIELD: chemistry.

SUBSTANCE: method of making an electrode for electrochemical processes involves electrodeposition of an electrocatalytic coating based on mixed oxides of base metals on a titanium surface. The said coating on the titanium surface is formed through electrodeposition from an aqueous solution of an electrolyte which contains salts of cobalt, manganese, nickel and boric acid under the effect of alternating asymmetrical current in which the current amplitude ratio of the anode and cathode half-cycles is 2:1, at voltage of 8-10 V, with the following ratio of components (g/l): cobalt sulphate (CoSO₄·7H₂O) - 100.0-110.0, manganese sulphate (MnSO₄·5H₂O) - 20.0-25.0, nickel sulphate (NiSO₄·7H₂O) - 15.0-20.0, boric acid (H₃BO₃) - 25.0-30.0, with subsequent thermal treatment in an oxidising atmosphere at 350-380°C for 30 minutes.

EFFECT: invention increases corrosion resistance and electrocatalytic activity of the electrode, increases bonding strength of the coating with the titanium substrate, reduces the cost of making the electrode and energy consumption of the process.

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