C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/195.2
C25B 11/06 (2006.01)
Patent
CA 1190184
COATED METAL ELECTRODE WITH IMPROVED BARRIER LAYER ABSTRACT An electrode for use in electrolytic processes comprises a substrate of film-forming metal such as titanium having a porous electrocatalytic coating comprising at least one platinum-group metal and/or oxide thereof possibly mixed with other metal oxides, in an amount of at least about 2 g/m2 of the platinum-group metal(s) per projected surface area of the substrate. Below the coating is a preformed barrier layer constituted by a surface oxide film grown up from the substrate. This preformed barrier layer has rhodium and/or iridium as metal or compound incorporated in the surface oxide film during formation thereof in an amount of up to 1 g/m2 (as metal) per projected surface area of the substrate. ???
361721
Beer Henri B.
Hinden Jean M.
Eltech Systems Corporation
Gowling Lafleur Henderson Llp
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