JPS54145196A - Gas sensitive element - Google Patents
Gas sensitive elementInfo
- Publication number
- JPS54145196A JPS54145196A JP5236778A JP5236778A JPS54145196A JP S54145196 A JPS54145196 A JP S54145196A JP 5236778 A JP5236778 A JP 5236778A JP 5236778 A JP5236778 A JP 5236778A JP S54145196 A JPS54145196 A JP S54145196A
- 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
- 239000007789 gas Substances 0.000 abstract 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 4
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 abstract 4
- 239000003054 catalyst Substances 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000001282 iso-butane Substances 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- 230000032683 aging Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
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 Pt 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 sensitive 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 Pt and P of 1.5 to 30 times the Pt 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 |
|---|---|---|---|
| JP5236778A JPS54145196A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5236778A JPS54145196A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54145196A true JPS54145196A (en) | 1979-11-13 |
Family
ID=12912829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5236778A Pending JPS54145196A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54145196A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60170759A (en) * | 1984-02-16 | 1985-09-04 | Matsushita Electric Ind Co Ltd | Combustible gas detecting element |
| JPS60170760A (en) * | 1984-02-16 | 1985-09-04 | Matsushita Electric Ind Co Ltd | Combustible gas detecting element |
-
1978
- 1978-05-02 JP JP5236778A patent/JPS54145196A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60170759A (en) * | 1984-02-16 | 1985-09-04 | Matsushita Electric Ind Co Ltd | Combustible gas detecting element |
| JPS60170760A (en) * | 1984-02-16 | 1985-09-04 | Matsushita Electric Ind Co Ltd | Combustible gas detecting element |
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