Production null of the oxygen evolution anode which consists of with the structure membrane characteristic metal backing material and the catalyst oxide coating which contains ruthenium

摘要

A method of manufacturing dimensionally stable oxygen evolving anodes with a titanium base and a catalytic oxide coating which is produced from a coating solution containing Ru and Mn compounds in concentrations corresponding to a mole ratio of RuO2 to MnO2 from 1:1 to 1:9. The solution is applied and dried, followed by heat treatment in air at 400oC, so as to produce an oxide coating in 6 to 35 layers with a total loading of Ru = 4 to 20 g/m2. Accelerated testing in sulphuric acid of anodes manufactured within these ranges shows a low oxygen potential during prolonged operation as an oxygen evolving anode.