JPS5744846A - Combustible gas detecting element - Google Patents

Combustible gas detecting element

Info

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
Application number
JP12052780A
Other languages
Japanese (ja)
Inventor
Toru Nobetani
Shigeo Akiyama
Shigekazu Kusanagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP12052780A priority Critical patent/JPS5744846A/en
Publication of JPS5744846A publication Critical patent/JPS5744846A/en
Pending legal-status Critical Current

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.
JP12052780A 1980-08-30 1980-08-30 Combustible gas detecting element Pending JPS5744846A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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