JPS57154043A - Gas sensitive element - Google Patents
Gas sensitive elementInfo
- Publication number
- JPS57154043A JPS57154043A JP3876481A JP3876481A JPS57154043A JP S57154043 A JPS57154043 A JP S57154043A JP 3876481 A JP3876481 A JP 3876481A JP 3876481 A JP3876481 A JP 3876481A JP S57154043 A JPS57154043 A JP S57154043A
- Authority
- JP
- Japan
- Prior art keywords
- specified
- sintered
- gas sensitive
- sensitive body
- al2o3
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
PURPOSE:To make it possible to detect low concentration Freon gas excellently by providing a catalyst layer, wherein vanadium and the like are supported on a support comprising Al2O3 and the like on a gas sensitive body comprising metal oxide having a specified composition. CONSTITUTION:ZnO powder and Sb2O3 powder are mixed at a specified ratio. A specified amount of a binder such as methylcellulose and the like is added to said mixture. Then the mixture is mixed for a specified time period and a paste is obtained. Said paste is applied on the outer surface of a tubular insulating substrate on which a pair of electrodes 2 are formed. The product is dried and then sintered, and the gas sensitive body is formed. Then vanadium standard solution having a specified concentration is formed by adding water to ammonium meta-vanadate and then adding oxalic acid under the heated state. Then as a support, a specified amount of Al2O3 is weighed, immersed in the standard solution, and left. Thereafter, it is evaporated, solidified, crushed, and sintered. The slurry is formed from said catalyst, applied on the surface of the sensitive body 3, dried, sintered, and the gas sensitive element is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3876481A JPS57154043A (en) | 1981-03-19 | 1981-03-19 | Gas sensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3876481A JPS57154043A (en) | 1981-03-19 | 1981-03-19 | Gas sensitive element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57154043A true JPS57154043A (en) | 1982-09-22 |
| JPS6128933B2 JPS6128933B2 (en) | 1986-07-03 |
Family
ID=12534343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3876481A Granted JPS57154043A (en) | 1981-03-19 | 1981-03-19 | Gas sensitive element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57154043A (en) |
-
1981
- 1981-03-19 JP JP3876481A patent/JPS57154043A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6128933B2 (en) | 1986-07-03 |
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