JPS5513828A - Catalyst supporting oxygen sensor element - Google Patents

Catalyst supporting oxygen sensor element

Info

Publication number
JPS5513828A
JPS5513828A JP8523878A JP8523878A JPS5513828A JP S5513828 A JPS5513828 A JP S5513828A JP 8523878 A JP8523878 A JP 8523878A JP 8523878 A JP8523878 A JP 8523878A JP S5513828 A JPS5513828 A JP S5513828A
Authority
JP
Japan
Prior art keywords
electrode
layer
thickness
catalyst
state electrolyte
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
JP8523878A
Other languages
Japanese (ja)
Inventor
Yasuhiro Otsuka
Shinichi Matsumoto
Hiroshi Wakizaka
Hisanobu Furuya
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP8523878A priority Critical patent/JPS5513828A/en
Publication of JPS5513828A publication Critical patent/JPS5513828A/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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4075—Composition or fabrication of the electrodes and coatings thereon, e.g. catalysts
    • 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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4077—Means for protecting the electrolyte or the electrodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

PURPOSE:To obtain excellent durability with a catalyst sensor improved by providing a protective layer made of a refractory substance on an electrode at the side of unbalanced exhaust gas from a vehicle enging, etc., and by stacking more than one specific double-coating layers on it. CONSTITUTION:On the inner circumferential surface of a cylindrical ion-conductive solid-state electrolyte with one terminal closed, the 1st electrode is bonded and on its outer circumferential surface, the 2nd electrode 3 of Pt or the like is applied to a thickness of 0.5 to 2mu. Electrode 3 coming in contact with ZrO2 particles 1 of the solid-state electrolyte is porous, allowing exhaust gas to pass through. On electrode 3, refractory oxide particles of preferably the same kind as the solid-state electrolyte are applied by plasma-spraying to form electrode protective layer 4 to a recommendable thickness of 20 to 200mu. On the layer, a double-coating layer consisting of catalyst layer 5 of Pt or the like of 0.5 to 100mu in thickness and catalyst protective layer 6 similar to layer 4 is provided by electroless plating.
JP8523878A 1978-07-14 1978-07-14 Catalyst supporting oxygen sensor element Pending JPS5513828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8523878A JPS5513828A (en) 1978-07-14 1978-07-14 Catalyst supporting oxygen sensor element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8523878A JPS5513828A (en) 1978-07-14 1978-07-14 Catalyst supporting oxygen sensor element

Publications (1)

Publication Number Publication Date
JPS5513828A true JPS5513828A (en) 1980-01-31

Family

ID=13852972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8523878A Pending JPS5513828A (en) 1978-07-14 1978-07-14 Catalyst supporting oxygen sensor element

Country Status (1)

Country Link
JP (1) JPS5513828A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147057A (en) * 1980-04-15 1981-11-14 Ngk Spark Plug Co Ltd Production of oxygen sensor
EP0372425A2 (en) * 1988-12-02 1990-06-13 Ngk Spark Plug Co., Ltd Oxygen-sensor element and method for producing the same
EP0668503A1 (en) * 1994-02-17 1995-08-23 General Motors Corporation Catalytic/ceramic oxide microcomposite materials for use as exhaust sensor pre-equilibration zone
US6672137B1 (en) 1999-10-27 2004-01-06 Ngk Spark Plug Co., Ltd. Oxygen sensor and manufacturing method of sensor element
EP2329256A1 (en) * 2008-09-16 2011-06-08 Robert Bosch GmbH Protective layers suitable for exhaust gases for high-temperature chemfet exhaust gas sensors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147057A (en) * 1980-04-15 1981-11-14 Ngk Spark Plug Co Ltd Production of oxygen sensor
JPS6256978B2 (en) * 1980-04-15 1987-11-28 Ngk Spark Plug Co
EP0372425A2 (en) * 1988-12-02 1990-06-13 Ngk Spark Plug Co., Ltd Oxygen-sensor element and method for producing the same
EP0668503A1 (en) * 1994-02-17 1995-08-23 General Motors Corporation Catalytic/ceramic oxide microcomposite materials for use as exhaust sensor pre-equilibration zone
US5733504A (en) * 1994-02-17 1998-03-31 General Motors Corporation Catalytic/ceramic oxide microcomposites for use as exhaust sensor pre-equilibration zone
US6672137B1 (en) 1999-10-27 2004-01-06 Ngk Spark Plug Co., Ltd. Oxygen sensor and manufacturing method of sensor element
US7254985B2 (en) 1999-10-27 2007-08-14 Ngk Spark Plug Co., Ltd. Oxygen sensor and a manufacturing method of the sensor device
EP2329256A1 (en) * 2008-09-16 2011-06-08 Robert Bosch GmbH Protective layers suitable for exhaust gases for high-temperature chemfet exhaust gas sensors

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