JPS54145198A - Gas sensitive element - Google Patents
Gas sensitive elementInfo
- 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
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
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)
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 |
-
1978
- 1978-05-02 JP JP5236978A patent/JPS54145198A/en active Pending
Cited By (1)
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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