Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1981-06-23
1983-06-28
Kaplan, G. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
128635, 427 41, B05D 306, G01N 2730
Patent
active
043904050
ABSTRACT:
An oxygen electrode adapted for use for polarographic, galvanometric or amperometric analyses, that is resistant to poisoning and effective for accurate, reproducible current and voltage measurements. The electrode comprises a conductive sensing member having a working surface which is comprised of a metal that catalyzes the cathodic reduction of oxygen and which is adapted to communicate with an oxygen-containing environment for carrying out such reduction. At the working surface is a layer of an oxide of the aforesaid metal. An insulating jacket covers all of the member except the working surface. There is a thin polymeric coating over said oxide layer and securely adhered to the working surface. The coating comprises a polymer produced by glow discharge polymerization of an aliphatic hydrocarbon and has such properties as to permit the reduction of oxygen at the electrode by electrons supplied at the working surface through the conductive member.
A method for preparing the electrode is also disclosed.
REFERENCES:
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patent: 4148305 (1979-04-01), Reichenberger
patent: 4276144 (1981-06-01), Hahn et al.
patent: 4312332 (1982-01-01), Zick
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Hahn Allen W.
Hellmuth Eckhard W.
Nichols Michael F.
Sharma Ashok K.
Curators of the University of Missouri
Kaplan G. L.
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