Electrode for electrochemical processes and use thereof in elect

Details Electrode for electrochemical processes and use thereof in elect Electrode for electrochemical processes and use thereof in elect

1985-10-25

1987-05-26

Chapman, Terryence

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204 98, 204128, 204290R, 204292, C25B 146, C25B 1108

Patent

active

046683704

ABSTRACT:
The present invention provides an electrode having a coating made of electrocatalytic ceramic materials on substantially incompatible metal substrates, by resorting to the use of an anchoring pre-coating or interlayer, applied over the metal substrate advantageously by galvanic electrodeposition, said pre-coating generally consisting of an inert metallic matrix containing particles of a ceramic material which preferably is compatible or even isomorphous with respect to the ceramic material constituting the superficial or external electrocatalytic coating.
Adhesion to the metal substrate and electrical conductivity through the coating result thereby greatly improved.
Further, the electrolysis of sodium chloride in cells provided with the electrode of the present invention is more efficient and less problematic.

REFERENCES:
patent: 3284333 (1966-11-01), Parsi et al.
patent: 3294667 (1966-12-01), Giuffrida
patent: 4157943 (1979-06-01), Scarpellino, Jr. et al.
patent: 4272354 (1981-06-01), de Nora et al.
patent: 4290859 (1981-09-01), Oda et al.
patent: 4392927 (1983-07-01), Fabian et al.
patent: 4421626 (1983-12-01), Stachurski et al.
patent: 4455211 (1984-06-01), Ray et al.
patent: 4470893 (1984-09-01), Oda et al.
patent: 4496453 (1985-01-01), Yoshida et al.
patent: 4498962 (1985-02-01), Oda et al.

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