Method of stabilising electrodes coated with mixed oxide...

Details Method of stabilising electrodes coated with mixed oxide... Method of stabilising electrodes coated with mixed oxide...

H - Electricity

01

M

319/23, 319/81,

H01M 4/90 (2006.01) C25B 11/00 (2006.01) C25B 11/06 (2006.01)

Patent

CA 1117589

ABSTRACT OF THE DISCLOSURE The invention relates to an electrochemical cell with an electrode having deposited thereon an electrocatalyst which is a mixed oxide of nickel-molybdenum, nickel-tungsten, cobalt-molybdenum or cobalt-tungsten and containing an aqueous alkaline electrolyte comprising an aqueous solution of a molybdenum, vanadium or tungsten compound. The electrodes are preferably prepared by alternately coating an electrode core with a compound of nickel or cobalt, and with a compound of molybdenum or tungsten, said compounds being capable of thermal decomposition to the corresponding oxides, heating the coated core at an elevated temperature to form a layer of the mixed oxides on the core and finally curing the core with the mixed oxide layer thereon in a reducing atmosphere at a temperature between 350°C and 600°C.

322349

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