JPS54145198A - Gas sensitive element - Google Patents

Gas sensitive element

Info

Publication number
JPS54145198A
JPS54145198A JP5236978A JP5236978A JPS54145198A JP S54145198 A JPS54145198 A JP S54145198A JP 5236978 A JP5236978 A JP 5236978A JP 5236978 A JP5236978 A JP 5236978A JP S54145198 A JPS54145198 A JP S54145198A
Authority
JP
Japan
Prior art keywords
gas
gas sensitive
catalyst layer
sensitive body
sensitive
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
JP5236978A
Other languages
Japanese (ja)
Inventor
Masaki Katsura
Takashi Takahashi
Tadao Kaneda
Hideaki Hiraki
Masayuki Shiratori
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 JP5236978A priority Critical patent/JPS54145198A/en
Publication of JPS54145198A publication Critical patent/JPS54145198A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a gas sensitive element of high reliability which is not sensitive to alcohol-base gases and is highly sensitive to isobutane gas by providing a catalyst layer composed of a specified amount of Rh and P of the specific times that on the surface of a tin oxide base sensitive body.
CONSTITUTION: A pair of electrodes are provided on the outside peripheral surface of a tubular insulation substrate 1 and a gas sensitive body 3 composed of tin oxide base semiconductor is provided so as to cover said tubular substrate 1 and electrodes 2. Further on the surface of the gas sensitive body 3 is provided a catalyst layer 4 composed of silica, alumina or other containing 0.005 to 8 wt% of Rh and P of 1.5 to 30 times the Rh at a molar ratio. Since the catalyst layer and gas sensitive body are separated in this way, the manufacture becomes easy and the gas sensitive element for LPG which is superior in aging characteristics and has high sensitivity only to the isobutane gas may be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP5236978A 1978-05-02 1978-05-02 Gas sensitive element Pending JPS54145198A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5236978A JPS54145198A (en) 1978-05-02 1978-05-02 Gas sensitive element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5236978A JPS54145198A (en) 1978-05-02 1978-05-02 Gas sensitive element

Publications (1)

Publication Number Publication Date
JPS54145198A true JPS54145198A (en) 1979-11-13

Family

ID=12912885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5236978A Pending JPS54145198A (en) 1978-05-02 1978-05-02 Gas sensitive element

Country Status (1)

Country Link
JP (1) JPS54145198A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309458A1 (en) 1982-03-16 1983-09-29 Kanegafuchi Kagaku Kogyo K.K., Osaka MEASURING METHOD FOR CONCENTRATING FLAMMABLE INGREDIENTS IN A LIQUID OR A GAS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309458A1 (en) 1982-03-16 1983-09-29 Kanegafuchi Kagaku Kogyo K.K., Osaka MEASURING METHOD FOR CONCENTRATING FLAMMABLE INGREDIENTS IN A LIQUID OR A GAS

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