Method for preparing an electrode and use thereof in electrochem

Details Method for preparing an electrode and use thereof in electrochem Method for preparing an electrode and use thereof in electrochem

1988-02-05

1990-07-03

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 47, 204 98, 204128, 204290R, 204292, 204293, 204291, C25D 350, C25B 120, C25B 126, C25B 1108

Patent

active

049388517

ABSTRACT:
The present invention concerns a method for preparing electrodes for use in electrochemical processes, said electrodes being constituted by a conductive support whereto an electrocatalytic coating is applied by galvanic deposition from a galvanic plating bath which additionally contains the groups IB, IIB, IIIA, IVA, VA, VB, VIB, VIII Of the periodic table.
The electrodes of the invention, obtainable according to the method of the invention, when used as cathodes in membrane or diaphragm chlor-alkali cells, exhibit low hydrogen overvoltages, constant with time, and are substantially immune to poisoning by iron, mercury or other metal impurities present in the alkaline solutions.

REFERENCES:
patent: 3692641 (1972-09-01), Losi et al.
patent: 3788968 (1974-01-01), Muller et al.
patent: 4465580 (1984-08-01), Kasuya
patent: 4515673 (1985-05-01), Hayfield
patent: 4528084 (1985-07-01), Beer et al.

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