JPS54104392A - Gas sensitive element - Google Patents

Gas sensitive element

Info

Publication number
JPS54104392A
JPS54104392A JP984978A JP984978A JPS54104392A JP S54104392 A JPS54104392 A JP S54104392A JP 984978 A JP984978 A JP 984978A JP 984978 A JP984978 A JP 984978A JP S54104392 A JPS54104392 A JP S54104392A
Authority
JP
Japan
Prior art keywords
gas sensitive
sensitive element
meo
alumina
sensitivity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP984978A
Other languages
Japanese (ja)
Inventor
Takashi Takahashi
Masaki Katsura
Tadao Kaneda
Hideo Okuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP984978A priority Critical patent/JPS54104392A/en
Publication of JPS54104392A publication Critical patent/JPS54104392A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

PURPOSE: To achieve the improvement in sensitivity, selectivity and aging characteristics by providing a catalyst layer composed of silica and alumina on the surface of the gas sensitive body of the specific composition containing ZnO. MeO2 (Me is one of Ge, Sn, Ti, Zr, Hf) and Me2'O3.
CONSTITUTION: The catalyst layer containing 0.01 to 10wt% of the Pt compound comprising adding at least one of Re, Rn at 70atom% or under as an additive to silica and alumina is provided on the surface of the gas sensitive body containing 99.85 to 20mole% of ZnO, 0.1 to 50mole% of MeO2 (where Me is at least one of Ge, Sn, Ti, Zr, Hf) and 0.05 to 30mole% of Me2'O3 (where Me' is at least one of Ga, B, In, Fe, Al, Cr). Thereby, the gas sensitive element which is superior in sensitivity and gas selectivity and causes less aging upon long-term use may be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP984978A 1978-02-02 1978-02-02 Gas sensitive element Pending JPS54104392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP984978A JPS54104392A (en) 1978-02-02 1978-02-02 Gas sensitive element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP984978A JPS54104392A (en) 1978-02-02 1978-02-02 Gas sensitive element

Publications (1)

Publication Number Publication Date
JPS54104392A true JPS54104392A (en) 1979-08-16

Family

ID=11731572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP984978A Pending JPS54104392A (en) 1978-02-02 1978-02-02 Gas sensitive element

Country Status (1)

Country Link
JP (1) JPS54104392A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168352A (en) * 1983-03-15 1984-09-22 Hitachi Ltd Gas detection element and gas-leak warning device
JPS607353A (en) * 1983-06-27 1985-01-16 Toshiba Corp Gas sensitive element
US4731226A (en) * 1985-06-24 1988-03-15 Figaro Engineering Inc. Gas sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168352A (en) * 1983-03-15 1984-09-22 Hitachi Ltd Gas detection element and gas-leak warning device
JPS607353A (en) * 1983-06-27 1985-01-16 Toshiba Corp Gas sensitive element
JPH0315976B2 (en) * 1983-06-27 1991-03-04 Tokyo Shibaura Electric Co
US4731226A (en) * 1985-06-24 1988-03-15 Figaro Engineering Inc. Gas sensor

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