Degradation behaviour of a titanium supported RuO2TiO2 electrode

Abstract

The degradation behaviour of a titanium supported RuO₂TiO₂ electrode in HClH₂SO₄ solutions is investigated. In the early stage of electrolysis cracks on the electrode surface grow by dissolution of oxide in the strongly acidified medium, the proton concentration of which is controlled by the main electrolytic reactions. It is concluded that the titanium component in the oxide is responsible for the dissolution of the oxides in the cracks.