JPS5757249A - Gas sensing element - Google Patents
Gas sensing elementInfo
- Publication number
- JPS5757249A JPS5757249A JP13235380A JP13235380A JPS5757249A JP S5757249 A JPS5757249 A JP S5757249A JP 13235380 A JP13235380 A JP 13235380A JP 13235380 A JP13235380 A JP 13235380A JP S5757249 A JPS5757249 A JP S5757249A
- Authority
- JP
- Japan
- Prior art keywords
- vanadium
- al2o3
- gas
- sio2
- baked
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 4
- 239000003054 catalyst Substances 0.000 abstract 4
- 229910052593 corundum Inorganic materials 0.000 abstract 4
- 235000012239 silicon dioxide Nutrition 0.000 abstract 4
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 4
- 229910052681 coesite Inorganic materials 0.000 abstract 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract 3
- 239000000377 silicon dioxide Substances 0.000 abstract 3
- 229910052682 stishovite Inorganic materials 0.000 abstract 3
- 229910052905 tridymite Inorganic materials 0.000 abstract 3
- 229910052720 vanadium Inorganic materials 0.000 abstract 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract 3
- 239000010419 fine particle Substances 0.000 abstract 2
- 239000011259 mixed solution Substances 0.000 abstract 2
- 229910020489 SiO3 Inorganic materials 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 229920000609 methyl cellulose Polymers 0.000 abstract 1
- 239000001923 methylcellulose Substances 0.000 abstract 1
- 235000010981 methylcellulose Nutrition 0.000 abstract 1
- WUJISAYEUPRJOG-UHFFFAOYSA-N molybdenum vanadium Chemical compound [V].[Mo] WUJISAYEUPRJOG-UHFFFAOYSA-N 0.000 abstract 1
- 239000004570 mortar (masonry) Substances 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- NWJUARNXABNMDW-UHFFFAOYSA-N tungsten vanadium Chemical compound [W]=[V] NWJUARNXABNMDW-UHFFFAOYSA-N 0.000 abstract 1
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 obtain higher sensitivity for reducible gas and Freon gas in low concentration of a degree of 500ppm, by providing a catalyst layer comprising Al2O3 and SiO2 on Al2O3. SiO2 carrying a prescribed amount of vanadium on the surface of a gas-sensitive means. CONSTITUTION:A carrier of Al2O3, SiO2 and Al2O3.SiO3 is weighed in a prescribed amount, and the carrier is dipped in a vanadium solution on a mixed solution of vanadium molybdenum and a mixed solution of vanadium-tungsten. After that, the resultant is left as it is, and is evaporated on drying, and further, it is pulverized to be fine particles in a mortar. Further said fine particles are entered in a quartz crucible, and are baked at temperature of 300-600 deg.C to obtain a catalyst. As a gas-sensitive means 3 a binder such as methyl cellulose is added properly by mixing to an oxide semiconductor of a ZnO system. This is applied on an insulating substrate 1 provided with a pair of electrode 2, and dried, before being baked. On the surface of this means 3, said catalyst is applied by using a proper solvent, and is baked. The vanadium content in said catalyst layer is made to be 0.1- 50wt%.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13235380A JPS5757249A (en) | 1980-09-25 | 1980-09-25 | Gas sensing element |
| US06/293,963 US4407778A (en) | 1980-09-25 | 1981-08-18 | Freon gas detecting element |
| AU75432/81A AU541693B2 (en) | 1980-09-25 | 1981-09-17 | Freon gas detecting element |
| EP81107576A EP0048955B1 (en) | 1980-09-25 | 1981-09-23 | Freon gas detecting element |
| DE8181107576T DE3175814D1 (en) | 1980-09-25 | 1981-09-23 | Freon gas detecting element |
| CA000386550A CA1171461A (en) | 1980-09-25 | 1981-09-24 | Freon gas detecting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13235380A JPS5757249A (en) | 1980-09-25 | 1980-09-25 | Gas sensing element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5757249A true JPS5757249A (en) | 1982-04-06 |
| JPS618940B2 JPS618940B2 (en) | 1986-03-18 |
Family
ID=15079369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13235380A Granted JPS5757249A (en) | 1980-09-25 | 1980-09-25 | Gas sensing element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5757249A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637450A (en) * | 1986-06-27 | 1988-01-13 | 川鉄建材工業株式会社 | Macadam decorative surface finish panel and its production |
| JPH02236351A (en) * | 1989-03-08 | 1990-09-19 | Nitto Boseki Co Ltd | Transparent through-chip type tile |
-
1980
- 1980-09-25 JP JP13235380A patent/JPS5757249A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637450A (en) * | 1986-06-27 | 1988-01-13 | 川鉄建材工業株式会社 | Macadam decorative surface finish panel and its production |
| JPH02236351A (en) * | 1989-03-08 | 1990-09-19 | Nitto Boseki Co Ltd | Transparent through-chip type tile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS618940B2 (en) | 1986-03-18 |
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