Electrode for electrolysis cell

Details Electrode for electrolysis cell Electrode for electrolysis cell

C - Chemistry, Metallurgy

25

B

C25B 11/04 (2006.01) C25B 1/46 (2006.01)

Patent

CA 2741483

The invention relates to an electrode formulation comprising a catalytic layer containing tin, ruthenium, iridium, palladium and niobium oxides applied to a titanium or other valve metal substrate. A protective layer based on titanium oxide modified with oxides of other elements such as tantalum, niobium or bismuth may be interposed between the substrate and the catalytic layer. The thus obtained electrode is suitable for use as anode in electrolysis cells for chlorine production.

L'invention porte sur une formulation d'électrode comprenant une couche catalytique contenant des oxydes d'étain, de ruthénium, d'iridium, de palladium et de niobium appliqués sur un substrat de titane ou autre métal-valve. Une couche protectrice à base d'oxyde de titane modifié avec des oxydes d'autres éléments tels que le tantale, le niobium ou le bismuth, peut être interposée entre le substrat et la couche catalytique. L'électrode ainsi obtenue est appropriée pour être utilisée comme anode dans des cellules d'électrolyse pour la production de chlore.

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