Insoluble anode for generating oxygen and process for producing the same

摘要

An insoluble anode for generating oxygen which comprises a substrate made of titanium or an alloy thereof, a first coating on said substrate which is made of metallic bismuth or bismuth oxides, and a second coating on said first coating which is made of metallic iridium and iridium dioxide, has greatly improved durability and permits use for a long period of time.