Title: Oxygen sensor coated with catalytic material

Abstract: One of the Pt electrodes of a concentration cell comprising a solid oxygen-ion electrolyte is coated with a porous inorganic material such as .gamma.-type Al.sub.2 O.sub.3 impregnated with an oxidation catalyst such as Pt so that oxidation reactions in a mixed gas to be measured may attain equilibrium before the gas comes into contact with the cell.

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Inventors: Togawa, Kinmochi (Zushi, JA)
Matoba, Kazuo (Yokohama, JA)
Takao, Hiroshi (Kamakura, JA)
Hata, Yoshitaka (Fujisawa, JA)

Application Number: 489539
Filing Date: 1974-07-18
Publication_date: 1976-01-27
Assignee: Nissan Motor Company Limited (JA)
Primary Class(es): 204/429
Other Classes:
US Patent Ref:

3300344	Jan, 1967	Bray et al.	136/86.
3400054	Sep, 1968	Ruka et al.	204/1.
3503809	Mar, 1970	Spacil	204/195.
3645875	Feb, 1972	Record et al.	204/195.

Other Refs:
Primary Examiner: Kaplan, G. L.
Assistant Examiner:
Attorney: Burns; Robert E., Lobato; Emmanuel J., Adams; Bruce L.