Composite electrode for electrolytic processes

Details Composite electrode for electrolytic processes Composite electrode for electrolytic processes

1978-07-14

1979-06-12

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204 32R, 204 38S, 204 38B, 204 40, 204 43N, 204 45R, 204 46R, 204 47, 204112, 204113, 204291, 204292, 204293, 204105R, 204290R, 204290F, 427229, C25B 1108, C25B 1110, C25D 350, C25D 550

Patent

active

041579437

ABSTRACT:
A composite electrode especially suitable for electrowinning processes comprising an electrically conductive substrate having on at least a part of its surface a multilayer coating, said coating comprising:
(a) a barrier layer directly on the substrate;
(b) a ruthenium dioxide-containing non-electrodeposited surface layer; and
(c) between the barrier layer and the surface layer, an intermediate layer consisting of an electroplated ruthenium-iridium deposit, said ruthenium-iridium deposit being at least partially in an oxidized state.

REFERENCES:
patent: 3616445 (1971-10-01), Bianchi et al.
patent: 3846273 (1974-11-01), Bianchi et al.

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