Oxygen sensor with noncatalytic electrode

Details Oxygen sensor with noncatalytic electrode Oxygen sensor with noncatalytic electrode

1976-06-30

1977-09-20

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

204294, G01N 2730, G01N 2746

Patent

active

040495248

ABSTRACT:
In an oxygen sensor having a solid electrolyte layer such as stabilized zirconia and two electrode layers form respectively on both sides of the electrolyte layer, at least one electrode which is to be exposed to a gas mixture subject to measurement is made of carbon silicide to avoid catalyzing oxidation reactions, optionally with the addition of a minor amount of trisilicon tetranitride as a binder. The sensor features an exact and noticeable dependence of its output voltage on the oxygen concentration in a gas mixture in a non-equilibrated state as typified by an engine exhaust gas.

REFERENCES:
patent: 3403090 (1968-09-01), Tajiri et al.
patent: 3891512 (1975-06-01), Jackson
patent: 3941673 (1976-03-01), Takao et al.

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