High performance cathodes for water electrolysers

Details High performance cathodes for water electrolysers High performance cathodes for water electrolysers

C - Chemistry, Metallurgy

25

B

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

Patent

CA 2711670

A cathode for hydrogen evolution in an electrolytic cell, comprising a metallic substrate, and a coating consisting of substantially pure ruthenium oxide, is disclosed. The inventive cathode provides enhanced performance and service life under unsteady and intermittent powering, such as powering from solar cells; a process for coating the metallic substrate is also disclosed.

La présente invention concerne une cathode destinée au dégagement de l'hydrogène dans une cellule électrolytique, comprenant un substrat métallique, et un revêtement composé d'oxyde de ruthénium essentiellement pur. La cathode selon l'invention présente une performance et une durée de vie améliorées sous alimentation instable et intermittente, telle qu'une alimentation à partir de cellules solaires ; l'invention concerne également un procédé de revêtement du substrat métallique.

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