JPS54145197A - Gas sensitive element - Google Patents
Gas sensitive elementInfo
- Publication number
- JPS54145197A JPS54145197A JP5236878A JP5236878A JPS54145197A JP S54145197 A JPS54145197 A JP S54145197A JP 5236878 A JP5236878 A JP 5236878A JP 5236878 A JP5236878 A JP 5236878A JP S54145197 A JPS54145197 A JP S54145197A
- 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.)
- Granted
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 Pt 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 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 |
---|---|---|---|
JP5236878A JPS54145197A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5236878A JPS54145197A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54145197A true JPS54145197A (en) | 1979-11-13 |
JPS6122776B2 JPS6122776B2 (en) | 1986-06-03 |
Family
ID=12912860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5236878A Granted JPS54145197A (en) | 1978-05-02 | 1978-05-02 | Gas sensitive element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54145197A (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 |
KR100780076B1 (en) * | 2001-11-08 | 2007-11-29 | 허증수 | Method for forming sensitizer for semiconductor type gas sensor and semiconductor type gas sensor array |
-
1978
- 1978-05-02 JP JP5236878A patent/JPS54145197A/en active Granted
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 |
KR100780076B1 (en) * | 2001-11-08 | 2007-11-29 | 허증수 | Method for forming sensitizer for semiconductor type gas sensor and semiconductor type gas sensor array |
Also Published As
Publication number | Publication date |
---|---|
JPS6122776B2 (en) | 1986-06-03 |
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