Electrode for gas evolution and method for its production

Details Electrode for gas evolution and method for its production Electrode for gas evolution and method for its production

C - Chemistry, Metallurgy

25

B

C25B 11/04 (2006.01) C02F 1/461 (2006.01) C25D 17/10 (2006.01)

Patent

CA 2486073

The invention relates to the production of multilayer electrodes on valve metal substrates, through a method comprising the application in alternate cycles of a solution containing precursors of noble metals, and of a second solution containing transition metals capable of forming protective coatings. The resulting electrodes are useful in several applications, among which copper and other metal plating and the treatment of waste or tap water.

L'invention concerne la production d'électrodes multicouches sur des substrats métalliques de valves, suivant un procédé consistant à appliquer, en cycles alternés, une solution renfermant des précurseurs de métaux nobles, et une seconde solution contenant des métaux de transition capables de former des revêtements de protection. Les électrodes obtenues sont utilisées dans plusieurs applications, parmi lesquelles l'électrodéposition du cuivre et d'autres métaux, et le traitement des eaux usées ou de l'eau plate.

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