Cathode for use in electrolytic cell

Details Cathode for use in electrolytic cell Cathode for use in electrolytic cell

C - Chemistry, Metallurgy

25

B

C25B 11/04 (2006.01)

Patent

CA 2209517

A cathode wherein the electrocatalytically-active outer layer is of substantially uniform thickness and has contours which are at least substantially the same as the contours of the substrate immediately underlying it. The electrode may be prepared by depositing the electrocatalytically- active outer layer by physical vapour deposition. The electrocatalytically- active outer layer comprises (a) cerium and/or cerium oxide and at least one non-noble Group 8 metal or (b) platinum and/or platinum oxide and ruthenium and/or ruthenium oxide.

L'invention concerne une cathode où la couche externe à activité électro-catalytique a une épaisseur sensiblement uniforme et des contours qui sont au moins sensiblement les mêmes que les contours du substrat immédiatement sous-jacent. On peut produire cette électrode en déposant la couche externe à activité électro-catalytique par dépôt physique en phase vapeur. La couche externe à activité électro-catalytique comprend (a) du cérium et/ou de l'oxyde cérique et au moins un métal non précieux du groupe 8 ou (b) du platine et/ou de l'oxyde de platine et du ruthénium et/ou de l'oxyde de ruthénium.

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