Electrocatalytic cermet sensor

Details Electrocatalytic cermet sensor Electrocatalytic cermet sensor

1996-05-01

1998-06-30

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204424, 205784, G01N 27407

Patent

active

057728631

ABSTRACT:
A sensor for O.sub.2 and CO.sub.2 gases. The gas sensor includes a plurality of layers driven by a cyclic voltage to generate a unique plot characteristic of the gas in contact with the sensor. The plurality of layers includes an alumina substrate, a reference electrode source of anions, a lower electrical reference electrode of Pt coupled to the reference source of anions, a solid electrolyte containing tungsten and coupled to the lower reference electrode, a buffer layer for preventing flow of Pt ions into the solid electrolyte and an upper catalytically active Pt electrode coupled to the buffer layer.

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