Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1984-03-23
1985-07-09
Andrews, R. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204266, 204290R, 204290F, 204291, 204292, 204293, C25B 900, C25B 1106, C25B 1108
Patent
active
045280835
ABSTRACT:
A gas generating apparatus and method is described which utilizes a novel catalytic oxygen evolving electrode for such electrochemical systems as electrolysis cells and oxygen concentration cells. The electrochemical cells include a catalytic cathode and an improved catalytic anode positioned on opposite sides of, and in electrical contact with, a cation exchange membrane. A source of direct current potential between the cathode and the anode and means for removing gas from at least one of the electrodes are provided. The improved catalytic anode is a ternary platinum group reduced metal oxide alone or in combination with platinum group metals and/or platinum group metal oxides or mixtures of the foregoing having at least one valve metal component such as titanium, hafnium, zirconium, niobium, tantalum, and tungsten.
REFERENCES:
patent: 3632498 (1972-01-01), Beer
patent: 4039409 (1977-08-01), LaConti et al.
patent: 4147600 (1979-04-01), Rutherford et al.
patent: 4191618 (1980-03-01), Coker et al.
"Modern Chlor-Alkali Tech.", vol. 2, C. Jackson, (Editor), Ellis Horwood Ltd., 1983, pp. 101-102.
Dempsey Russell M.
Enos John F.
Fragala Anthony R.
LaConti Anthony B.
Andrews R. L.
Blumenfeld I. David
Cohen Alan C.
United Technologies Corporation
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