JPS54145195A - Gas sensitive element - Google Patents
Gas sensitive elementInfo
- Publication number
- JPS54145195A JPS54145195A JP5236678A JP5236678A JPS54145195A JP S54145195 A JPS54145195 A JP S54145195A JP 5236678 A JP5236678 A JP 5236678A JP 5236678 A JP5236678 A JP 5236678A JP S54145195 A JPS54145195 A JP S54145195A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- sensitive
- catalyst layer
- gas sensitive
- sensitive element
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
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 an iron 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 sensititve body 3 composed of iron 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 |
|---|---|---|---|
| JP5236678A JPS54145195A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5236678A JPS54145195A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54145195A true JPS54145195A (en) | 1979-11-13 |
Family
ID=12912799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5236678A Pending JPS54145195A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54145195A (en) |
-
1978
- 1978-05-02 JP JP5236678A patent/JPS54145195A/en active Pending
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