Gas detecting element

Details Gas detecting element Gas detecting element

G - Physics

01

N

324/23

G01N 27/70 (2006.01) G01N 27/12 (2006.01)

Patent

CA 1118494

Abstract of the Disclosure A gas detecting element having a high gas selectivity which comprises an N-type metal oxide semiconductor, 0.005 to 8 % by weight based on the metal oxide, of at least one noble metal catalyst selected from the group consisting of platinum (Pt), palladium (Pd) and rhodium (Rh) and phosphorus 1.5 to 30 times as much as that of the noble metal or 0.05 to 30 times as much as that of palladium where palladium alone is used as the noble metal catalyst.

326589

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