Cathode/membrane assembly and method of making same

Details Cathode/membrane assembly and method of making same Cathode/membrane assembly and method of making same

1987-11-06

1989-10-10

Niebling, John F.

Coating processes

Electrical product produced

Electron emissive or suppressive

204282, 204290R, 204294, 204296, 427113, 427228, B05D 512, C25B 1300

Patent

active

048731218

ABSTRACT:
A cathode/membrane assembly for an electrolysis cell capable of producing hydrogen in a cathode compartment, utilizes as the cathode material on a proton-permeable solid-electrolite ion-exchange membrane, a layer of porous graphite in the form of carbonaceous fibers coated with tungsten carbide. The graphite felt can be impregnated with an aqueous solution of para-ammoniumtungstate or with an alcoholic solution of tungsten hexachloride and the tungsten compounds are then converted to the tungsten oxides. The tungsten oxide coated graphite felt is then subjected to carburization at a temperature of 620.degree. to 950.degree. C. in a carburizing atmosphere, preferably a flowing CO/CO.sub.2 mixture.

REFERENCES:
patent: 3860443 (1975-01-01), Lachman et al.
patent: 4253922 (1981-03-01), Welch
patent: 4330387 (1982-05-01), Astruc et al.
patent: 4654104 (1987-03-01), McIntyre et al.
patent: 4702784 (1987-10-01), Naumidis et al.

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