Methods of making gas sensors and sensors formed therefrom

Details Methods of making gas sensors and sensors formed therefrom Methods of making gas sensors and sensors formed therefrom

2006-08-29

2006-08-29

Talbot, Brian K. (Department: 1762)

Coating processes

Electrical product produced

Fuel cell part

C427S126300, C427S376200, C427S383100

Reexamination Certificate

active

07097875

ABSTRACT:
In one embodiment, a method of making a sensor comprises: forming a slurry comprising a metal oxide, a binder, an acetate, and a reducing material, applying the slurry to at least a portion of a sensing element comprising two electrodes with an electrolyte disposed therebetween, and calcining the slurry to form a protective coating. In one embodiment, a gas sensor, comprises: a sensing element comprising a sensing electrode and a reference electrode having an electrolyte disposed therebetween, and a protective coating disposed over the sensing electrode, wherein the protective coating comprises aluminum oxide, an alpha alumina and about 2 wt % to about 15 wt % solid solution, based upon the total weight of the protective coating.

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