Ammonia gas sensors

Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For nitrogen or nitrogen containing compound

Reexamination Certificate

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C204S431000

Reexamination Certificate

active

07828955

ABSTRACT:
One embodiment of an ammonia gas sensor includes: a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The sensing electrode comprises the reaction product of a main material selected from the group consisting of vanadium, tungsten, molybdenum, vanadium oxides, tungsten oxides, molybdenum oxides, and combinations comprising at least one of the foregoing main materials, and an electrically conducting material selected from the group consisting of electrically conductive metals, electrically conductive metal oxides, and combinations comprising at least one of the foregoing.

REFERENCES:
patent: 7074319 (2006-07-01), Wang et al.
patent: 2003/0062264 (2003-04-01), Kitanoya et al.

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