Gas sensor

Details Gas sensor Gas sensor

1986-06-18

1988-03-15

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

73 27R, 338 34, 422 94, G01N 2712

Patent

active

047312262

ABSTRACT:
A gas sensor in which a compound of rhenium is added to tin oxide (SnO.sub.2). Rhenium inhibits the sensor from lowering its resistance over time and in particular increases its durability against overheating. Rhenium is preferably used together with vanadium. Rhenium is preferably added by impregnation in order to maintain temperature characteristic of the sensor.

REFERENCES:
patent: 4013943 (1977-03-01), Chou et al.
patent: 4033169 (1977-07-01), Fujishiro et al.
Patent Abstracts of Japan, vol. 9, No. 250, (P-394), [1973], 10/8/85; & JP-A-60 100 752, JP-A-60 100 753, JP-A-60 100 754, (Fuigaro Giken K.K.), 4/6/85.
Electronic Engineering, vol. 57, No. 701, May 1985, pp. 47-57; J. Watson et al.; "A Solid-State Gas Sensor".

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