JPS5757250A - Gas sensing element - Google Patents

Gas sensing element

Info

Publication number
JPS5757250A
JPS5757250A JP13235480A JP13235480A JPS5757250A JP S5757250 A JPS5757250 A JP S5757250A JP 13235480 A JP13235480 A JP 13235480A JP 13235480 A JP13235480 A JP 13235480A JP S5757250 A JPS5757250 A JP S5757250A
Authority
JP
Japan
Prior art keywords
gas
sio2
baked
al2o3
catalyst
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
JP13235480A
Other languages
Japanese (ja)
Inventor
Masayuki Shiratori
Masaki Katsura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13235480A priority Critical patent/JPS5757250A/en
Priority to US06/293,963 priority patent/US4407778A/en
Priority to AU75432/81A priority patent/AU541693B2/en
Priority to EP81107576A priority patent/EP0048955B1/en
Priority to DE8181107576T priority patent/DE3175814D1/en
Priority to CA000386550A priority patent/CA1171461A/en
Publication of JPS5757250A publication Critical patent/JPS5757250A/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 higher sensitibvity for reducible gas and Freon gas in low concentration, by providing a catalyst layer comprising Al2O3.SiO2 carrying a prescribed amount of molybdenum an the surface of a gas-sensitive means. CONSTITUTION:A carrier Al2O3, SiO2 and Al2O3.SiO2 is weighed in prescribed amount, and an ammonium molybdate aqueous solution diluted to a prescribed concentration with water is added in a prescribed amount to said carrier, and they are left as they are for a whole day and night. After being left, they are evaporated on drying, and are made to be powder in a mortar, and further are baked at temperature of 300-600 deg.C to obtain a catalyst. Next, one obtained by adding Sb2O3 to ZnO2 is applied on the surface of the insulating substrate 1 having an electrode 2, and after being dried, the surface of the insulating substrate 1 having an electrode 2, and after being dried, the resultant is baked. On the surface of this gas-sensitive means 3, paste of said catalyst is applied, and is baked at temperature of 300-600 deg.C for obtaining a catalyst layer 4. The amount of molybdenum carried on the catalyst layer is preferable to be 0.1-50wt%.
JP13235480A 1980-09-25 1980-09-25 Gas sensing element Pending JPS5757250A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP13235480A JPS5757250A (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
JP13235480A JPS5757250A (en) 1980-09-25 1980-09-25 Gas sensing element

Publications (1)

Publication Number Publication Date
JPS5757250A true JPS5757250A (en) 1982-04-06

Family

ID=15079393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13235480A Pending JPS5757250A (en) 1980-09-25 1980-09-25 Gas sensing element

Country Status (1)

Country Link
JP (1) JPS5757250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672761U (en) * 1992-07-17 1994-10-11 日本技研工業株式会社 Seat belt lighting device for automobiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672761U (en) * 1992-07-17 1994-10-11 日本技研工業株式会社 Seat belt lighting device for automobiles

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