Cathode surfaces having a low hydrogen overvoltage

Details Cathode surfaces having a low hydrogen overvoltage Cathode surfaces having a low hydrogen overvoltage

C - Chemistry, Metallurgy

25

D

204/192, 204/21

C25D 3/56 (2006.01) C25B 11/02 (2006.01) C25B 11/04 (2006.01)

Patent

CA 1072915

ABSTRACT OF DISCLOSURE A process for the preparation of a cathode having low hydrogen overvoltage is disclosed which comprises depositing on at least a portion of a core support formed from a material selected from the Periodic Table consisting of elements of groups IB, IVB, VB, VIIB, VIII, graphite and mixtures thereof, an alloy comprised of at least one base metal selected from the group consisting of nickel, cobalt, chromium, manganese and iron and at least one sacrificial metal, which is less noble than the base metal, selected from the group consisting of zinc, aluminum, magnesium and tin, and thereafter removing at least a portion of the sacrificial metal from the de- posited alloy.

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