KR950704683A - 배기 가스 센서용 고성능 전극(High-activity electrodes for exhaust gas sensors) - Google Patents

배기 가스 센서용 고성능 전극(High-activity electrodes for exhaust gas sensors) Download PDF

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KR950704683A
KR950704683A KR1019950702211A KR19950702211A KR950704683A KR 950704683 A KR950704683 A KR 950704683A KR 1019950702211 A KR1019950702211 A KR 1019950702211A KR 19950702211 A KR19950702211 A KR 19950702211A KR 950704683 A KR950704683 A KR 950704683A
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electrode
exhaust gas
gas sensor
cermet
high performance
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KR100253859B1 (ko
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프리제 칼-헤르만
비덴만 한스-마틴
스탕글마이어 프랑크
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랄르 홀거 베렌스·피터 뢰져
로베르트 보쉬 게엠베하
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
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    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/486—Fine ceramics
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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    • 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

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Abstract

본 발명은 배기가스 센서용의 높은 감도의 전극에 관한 것으로, 이는 산소 이온을 전도시키고 상호 소결(consintering) 후 인가된 촉매 물질을 함유하는 고체 전해질에 대해, 1300내지 1600℃에서의 상호 소결로 결합된 서멧 전극을 포함한다.
상기 양호한 고체 전해질은 지르코늄(IV) 산화물이고, 양호한 촉매 물질은 백금 또는 로듐을 포함한다. 본 발명은 또한 높은 감도의 상기 전극을 제조하는 방법과 내연기관의 배기가스중 산소 함유량을 결정하기 위한 센서에서의 상기 전극이 사용에도 관련한다.

Description

배기 가스 센서용 고성능 전극(High-activity electrodes for exhaust gas sensors)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (9)

  1. 배기 가스 센서용 고성능(high-activity) 전극으로서, 1300에서 1600℃까지 온도에서의 상호 소결(consintering) 에 의해, 산소이온을 전도시키고 상호 소결 후 인가되는 활성적 촉매 물질을 함유하는 고체 전해질에 결합되는 서멧 전극(cermat electrode)을 포함하는 것을 특징으로 하는 배기가스 센서용 고성능 전극.
  2. 제1항에 있어서, 상기 고체 전해질이 부분적으로 안정화된 지르코늄(IV) 산화물이고, 상기 서멧 전극의 매트릭스(matrix) 가 완전 안정화된 지르코늄(IV) 산화물인 것을 특징으로 하는 배기가스 센서용 고성능 전극.
  3. 제1항 또는 제2항에 있어서, 상기 활성적 촉매 물질이 백금 또는 로듐을 포함하는 것을 특징으로 하는 배기가스 센서용 고성능 전극.
  4. 제1항에 청구된 바와 같은 배개가스 센서용 고성능 전극을 제조하는 방법으로서, 산소 이온을 전도시키는 비소결된 고체 전해질과, 서멧 전극이 1300 내지 1600℃에서의 상호 소결에 의해 서로 결합되고, 계속해서 활성적 촉매 물질이 상기 서멧 전극 구멍(pore)에 제공되는 것을 특징으로 하는 배기가스 센서용 고성능 전극 제조방법.
  5. 제4항에 있어서, 상기 고체 전해질의 부분 안정화된 지르코늄(IV) 산화물이 사용되고, 상기 서멧 전극의 매트릭스(matrix) 에 완전 안정화된 지르코늄(IV) 산화물이 사용되는 것을 특징으로 하는 배기가스 센서용 고성능 전극 제조방법.
  6. 제4항 또는 제5항에 있어서, 상기 서멧 전극이 최소한 하나의 무기 또는 유기 백금 또는 로듐 화합물 용액에 침수되며, 이 용제가 증발되므로써 상기 활성적 촉매 물질이 상기 구멍에 제공되는 것을 특징으로 하는 배기가스 센서용 고성능 전극 제조방법.
  7. 제4 내지 6항중 어느 한 항에 있어서, 상기 서멧 전극이 300 내지 900℃의 온도에서 상기 용액의 증발후조화(tempering)되며, 상기 백금 또는 로듐의 무기 또는 유기 화합물이 공정중에 분해 가능한 것을 특징으로 하는 배기가스 센서용 고성능 전극 제조방법
  8. 제4 내지 7항중 어느 한 항에 있어서, 처음으로 사용되기 앞서, 상기 서멧 전극이 수소 분위기 하에서 가열되는 것을 특징으로 하는 배기가스 센서용 고성능 전극 제조방법.
  9. 내연기관의 배기 가스에서 산소 함유량을 결정하기 위한 센서에서의 제1 내지 3항에 청구된 전극 사용.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950702211A 1992-12-01 1993-11-27 배기 가스 센서용 고성능 전극 KR100253859B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP4240267.0 1992-12-01
DE4240267A DE4240267C2 (de) 1992-12-01 1992-12-01 Hochaktive Elektroden für Abgassensoren
PCT/DE1993/001136 WO1994012870A1 (de) 1992-12-01 1993-11-27 Hochaktive elektroden für abgassensoren

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KR950704683A true KR950704683A (ko) 1995-11-20
KR100253859B1 KR100253859B1 (ko) 2000-04-15

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EP (1) EP0672247B1 (ko)
JP (1) JP3327335B2 (ko)
KR (1) KR100253859B1 (ko)
DE (2) DE4240267C2 (ko)
WO (1) WO1994012870A1 (ko)

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DE19732601C2 (de) * 1997-07-29 1999-11-04 Heraeus Electro Nite Int Katalytisches Schichtsystem
DE10020082B4 (de) * 2000-04-22 2012-04-05 Robert Bosch Gmbh Elektrochemischer Meßfühler
DE10033906A1 (de) 2000-07-12 2002-02-28 Bosch Gmbh Robert Platinmetallhaltige Cerametelektroden für die elektrochemische Reduktion von Sauerstoff
JP4637375B2 (ja) * 2001-01-31 2011-02-23 京セラ株式会社 酸素センサの製造方法
DE10154638B4 (de) * 2001-11-07 2006-03-02 Robert Bosch Gmbh Katalytisch aktive Schicht
DE102008042770A1 (de) 2008-10-13 2010-04-15 Robert Bosch Gmbh Material einer Cermet-Schicht für elektrochemische Gassensoren
DE102012207761A1 (de) * 2012-05-09 2013-11-14 Continental Automotive Gmbh Sensorelement
WO2019000402A1 (zh) * 2017-06-30 2019-01-03 沈阳泰合蔚蓝科技股份有限公司 用于测量熔融金属温度的温度测量装置与温度测量方法

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DE2265309C3 (de) * 1972-02-10 1979-09-20 Robert Bosch Gmbh, 7000 Stuttgart Meßfühler für die Bestimmung des Sauerstoffgehaltes in Abgasen, vorwiegend von Verbrennungsmotoren, sowie Verfahren zur Herstellung solcher Meßfühler
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DE2852638C2 (de) * 1978-12-06 1986-01-16 Robert Bosch Gmbh, 7000 Stuttgart Gassensor mit Cermet- Elektroden
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US5141825A (en) * 1991-07-26 1992-08-25 Westinghouse Electric Corp. Method of making a cermet fuel electrode containing an inert additive

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Publication number Publication date
EP0672247B1 (de) 1997-02-05
JPH08503548A (ja) 1996-04-16
DE4240267A1 (de) 1994-06-09
JP3327335B2 (ja) 2002-09-24
WO1994012870A1 (de) 1994-06-09
KR100253859B1 (ko) 2000-04-15
DE4240267C2 (de) 2003-03-20
DE59305420D1 (de) 1997-03-20
EP0672247A1 (de) 1995-09-20

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