JPS5744846A - Combustible gas detecting element - Google Patents
Combustible gas detecting elementInfo
- Publication number
- JPS5744846A JPS5744846A JP12052780A JP12052780A JPS5744846A JP S5744846 A JPS5744846 A JP S5744846A JP 12052780 A JP12052780 A JP 12052780A JP 12052780 A JP12052780 A JP 12052780A JP S5744846 A JPS5744846 A JP S5744846A
- Authority
- JP
- Japan
- Prior art keywords
- pdo
- main component
- rare earth
- gas
- earth oxide
- 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
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 the sensing element which is characterized by high sensitivity for methane gas and isobutane gas, low sensitivity for steam, alcohol, and the like, and excellent selectivity, by adding PdO to the main component of rare earth oxide at a specified ratio. CONSTITUTION:The main component comprises one or more kinds of rare earth oxide, such as CeO2, Y2O3, Eu2O3, Sc2O3, Gd2O3, and Sm2O3. The combustible sensing element is prepared by adding PbO to the main component at the ratio of 10-20wt% of PdO of the total weight of the main component and PdO. The rare earth oxide (raw material may be chloride or sulfide) and PdO are blended and crushed at said ratio together with a necessary binder component and the like. Then the element is formed in a cylindrical form and the like by pressing, with Pt wire electrodes being embedded. The product is burned in the air at a specified temperature in an electric furnace, and a gas sensing body is formed. The sensing body is mounted on an alumina stem in which a heater is provided, and covered by a wire meshed cap. Thus the gas sensing element is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12052780A JPS5744846A (en) | 1980-08-30 | 1980-08-30 | Combustible gas detecting element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12052780A JPS5744846A (en) | 1980-08-30 | 1980-08-30 | Combustible gas detecting element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5744846A true JPS5744846A (en) | 1982-03-13 |
Family
ID=14788464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12052780A Pending JPS5744846A (en) | 1980-08-30 | 1980-08-30 | Combustible gas detecting element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5744846A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996019725A1 (en) * | 1994-12-20 | 1996-06-27 | Robert Bosch Gmbh | Sensor for detecting flammable gases |
JP2019200071A (en) * | 2018-05-14 | 2019-11-21 | キヤノン株式会社 | Reducing gas detection material, and reducing gas detection sensor |
US11686698B2 (en) | 2018-05-14 | 2023-06-27 | Canon Kabushiki Kaisha | Reducing gas detection material and reducing gas detection sensor |
-
1980
- 1980-08-30 JP JP12052780A patent/JPS5744846A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996019725A1 (en) * | 1994-12-20 | 1996-06-27 | Robert Bosch Gmbh | Sensor for detecting flammable gases |
JP2019200071A (en) * | 2018-05-14 | 2019-11-21 | キヤノン株式会社 | Reducing gas detection material, and reducing gas detection sensor |
US11686698B2 (en) | 2018-05-14 | 2023-06-27 | Canon Kabushiki Kaisha | Reducing gas detection material and reducing gas detection sensor |
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