Process of preparing a durable electrode by plasma spraying an i

Details Process of preparing a durable electrode by plasma spraying an i Process of preparing a durable electrode by plasma spraying an i

1995-04-10

1996-02-20

Gorgos, Kathryn

Coating processes

Spray coating utilizing flame or plasma heat

Metal oxide containing coating

4271263, 4271266, 4273763, 4273764, 427380, C23C 410, B05D 512

Patent

active

054927323

ABSTRACT:
Provided is a process for producing a durable low hydrogen over-voltage cathode. An interim coating is applied to a metallic substrate by plasma spraying an intermetallic compound comprising at least 10% cerium oxide by x-ray diffraction analysis and at least one non-noble Group 8 metal. The metallic substrate bearing the interim coating is then heated in a non-oxidizing atmosphere including an inert gas to produce the electrode.

REFERENCES:
patent: 4100049 (1977-07-01), Brannan
patent: 4465580 (1979-02-01), Kasuya
patent: 4543265 (1984-02-01), Kasuya
patent: 4877508 (1988-10-01), Morimoto et al.
patent: 5021304 (1989-03-01), Ruka et al.
patent: 5314601 (1994-05-01), Hardee et al.
Hall et al, Hydrogen Evolution Cathodes With AB.sub.5 -Catalyzed Coatings, Inco Alloys International, Inc., pp. 184-194.
Hall, Plasma-sprayed nickel cathode coatings for hydrogen evolution in alkaline electrolytes, Journal of Applied Electrochemistry, vol. 14, 1984, pp. 107-115.
Semenenko et al, Electrochemical Properties of Intermetallic Hydride-Polymeric Binder Composite Electrodes, Plenum Publishing Corporation, 1984, pp. 525-527.
Patent Abstracts of Japan, re: JP-A-54-090-080. Dec. 1977.
Patent Abstracts of Japan, re: JP-A-51-117-181 Oct. 1976.

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