Gas sensitive devices

Details Gas sensitive devices Gas sensitive devices

1980-06-04

1981-12-01

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

73 23, 422 97, G01N 2716

Patent

active

043036120

ABSTRACT:
Catalytic gas sensors comprise a noble metal filament onto which is applied alumina having a particle size of not greater than 100 A and a catalyst material is impregnated into the dried alumina. The alumina may be dried by passage of an electric current through the filament and, prior to coating the filament may be stabilized by coating with a thermally decomposable aluminium salt and decomposed by passing a pulsed electric current.

REFERENCES:
patent: 3200011 (1965-08-01), Baker
patent: 4045177 (1977-08-01), McNally
patent: 4111658 (1978-09-01), Firth et al.
patent: 4123225 (1978-10-01), Jones

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