Solid-state gas sensor for carbon monoxide and hydrogen

Details Solid-state gas sensor for carbon monoxide and hydrogen Solid-state gas sensor for carbon monoxide and hydrogen

1993-11-05

1995-08-08

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204424, 422 83, 422 94, 422 98, G01N 2726

Patent

active

054395801

ABSTRACT:
Anatase titania is used as the sensitive ceramic for sensing the amount of carbon monoxide and hydrogen in mixed gasses where the changes in electric current characteristics passing through such ceramic when it is exposed to such gases is used to determine the amount of carbon monoxide and hydrogen present. Such sensor is made selective to hydrogen when alumina is included in the ceramic and to carbon monoxide when yttria is included. Additions of a catalytic metal particularly iron or palladium is beneficial to the anatase titania-yttria ceramic in its selective sensing of carbon monoxide.

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