Nitrogen oxide detecting sensor and method of manufacturing the

Details Nitrogen oxide detecting sensor and method of manufacturing the Nitrogen oxide detecting sensor and method of manufacturing the

1996-04-01

1999-01-26

Soderquist, Arlen

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 90, 422 94, 422 98, 436116, 436117, 436118, 73 3105, 204425, 204429, G01N 2704

Patent

active

058635033

ABSTRACT:
A nitrogen oxide detecting sensor, according to the present invention, incorporates a gas detecting portion including, as a main component thereof, an oxide compound having electric conductivity or semiconductivity, the oxide compound having a crystal structure of 2212 phase and expressed generally as: Bi.sub.2 Sr.sub.2 (Ca.sub.1-x Y.sub.x)Cu.sub.2 O.sub.8.+-..delta. where 0.6.ltoreq.x<1; 0.ltoreq..delta..ltoreq.1. Electrodes are electrically connected to the gas detecting portion. When the gas detecting portion is analyzed by X-ray diffraction using cuK.alpha. rays to obtain diffraction peak values thereof in the range of a diffraction angle between 5.degree. and expressed by one of the following: sum of diffraction peak intensity values based on an oxide including one sum of diffraction peak intensity values of an oxide including at least one of Bi, Sr, Ca, Y and Cu.

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