Method of manufacturing nitrogen oxide sensor, and nitrogen...

Details Method of manufacturing nitrogen oxide sensor, and nitrogen... Method of manufacturing nitrogen oxide sensor, and nitrogen...

G - Physics

01

N

G01N 27/26 (2006.01) C04B 35/505 (2006.01) G01N 27/12 (2006.01) G01N 33/00 (2006.01)

Patent

CA 2198049

A method of manufacturing a nitrogen oxide sensor for detecting a nitrogen oxide to be used in the field of e.g. reducing or decomposing nitrogen oxides, as well as such sensor and material suitable for manufacturing the sensor are disclosed. For manufacturing the sensor material, a precursor containing components for constituting the sensor material in a predetermined equivalent ratio is prepared. First, the precurser is subjected to sintered to a-preliminary sintering step. Then, the resultant sintered material is subjected to at least two cycles of main sintering step at 815 to 848 °C (T1) with an intermediate grinding step of the sintered material therebetween, thus obtaining the gas detecting portion comprised mainly of oxide compound having a composition represented by: Bi2Sr2YCu2Os+y (0 ~ y ~ 1) and having the 2212 phase.

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