JP5578369B2 - 排ガス浄化用触媒 - Google Patents

排ガス浄化用触媒 Download PDF

Info

Publication number
JP5578369B2
JP5578369B2 JP2011140237A JP2011140237A JP5578369B2 JP 5578369 B2 JP5578369 B2 JP 5578369B2 JP 2011140237 A JP2011140237 A JP 2011140237A JP 2011140237 A JP2011140237 A JP 2011140237A JP 5578369 B2 JP5578369 B2 JP 5578369B2
Authority
JP
Japan
Prior art keywords
catalyst
catalyst layer
exhaust gas
platinum
carrier
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.)
Expired - Fee Related
Application number
JP2011140237A
Other languages
English (en)
Japanese (ja)
Other versions
JP2013006147A5 (OSRAM
JP2013006147A (ja
Inventor
佳秀 瀬川
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
Priority to JP2011140237A priority Critical patent/JP5578369B2/ja
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to US14/128,394 priority patent/US8940657B2/en
Priority to PCT/JP2012/064184 priority patent/WO2012176605A1/ja
Priority to CN201280031251.5A priority patent/CN103619472B/zh
Priority to RU2013156859/04A priority patent/RU2549880C1/ru
Priority to BR112013032848-7A priority patent/BR112013032848B1/pt
Priority to EP12803158.0A priority patent/EP2724777A4/en
Publication of JP2013006147A publication Critical patent/JP2013006147A/ja
Publication of JP2013006147A5 publication Critical patent/JP2013006147A5/ja
Application granted granted Critical
Publication of JP5578369B2 publication Critical patent/JP5578369B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/63—Platinum group metals with rare earths or actinides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/33—Electric or magnetic properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0244—Coatings comprising several layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0248—Coatings comprising impregnated particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20715—Zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/40—Mixed oxides
    • B01D2255/407—Zr-Ce mixed oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/902—Multilayered catalyst
    • B01D2255/9022—Two layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B01D2255/9207—Specific surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings
    • F01N2510/0684—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having more than one coating layer, e.g. multi-layered coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/101—Three-way catalysts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S502/00—Catalyst, solid sorbent, or support therefor: product or process of making
    • Y10S502/52712—Plural layers on a support, each layer having a distinct function
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S502/00—Catalyst, solid sorbent, or support therefor: product or process of making
    • Y10S502/52712—Plural layers on a support, each layer having a distinct function
    • Y10S502/52713—More than two overlapping layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
JP2011140237A 2011-06-24 2011-06-24 排ガス浄化用触媒 Expired - Fee Related JP5578369B2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2011140237A JP5578369B2 (ja) 2011-06-24 2011-06-24 排ガス浄化用触媒
PCT/JP2012/064184 WO2012176605A1 (ja) 2011-06-24 2012-05-31 排ガス浄化用触媒
CN201280031251.5A CN103619472B (zh) 2011-06-24 2012-05-31 废气净化用催化剂
RU2013156859/04A RU2549880C1 (ru) 2011-06-24 2012-05-31 Катализатор для ограничения выброса отработанных газов
US14/128,394 US8940657B2 (en) 2011-06-24 2012-05-31 Exhaust emission control catalyst
BR112013032848-7A BR112013032848B1 (pt) 2011-06-24 2012-05-31 Catalisador de controle de emissão de exaustão
EP12803158.0A EP2724777A4 (en) 2011-06-24 2012-05-31 EMISSION CONTROL CATALYST

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011140237A JP5578369B2 (ja) 2011-06-24 2011-06-24 排ガス浄化用触媒

Publications (3)

Publication Number Publication Date
JP2013006147A JP2013006147A (ja) 2013-01-10
JP2013006147A5 JP2013006147A5 (OSRAM) 2013-11-14
JP5578369B2 true JP5578369B2 (ja) 2014-08-27

Family

ID=47422445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011140237A Expired - Fee Related JP5578369B2 (ja) 2011-06-24 2011-06-24 排ガス浄化用触媒

Country Status (7)

Country Link
US (1) US8940657B2 (OSRAM)
EP (1) EP2724777A4 (OSRAM)
JP (1) JP5578369B2 (OSRAM)
CN (1) CN103619472B (OSRAM)
BR (1) BR112013032848B1 (OSRAM)
RU (1) RU2549880C1 (OSRAM)
WO (1) WO2012176605A1 (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190046333A (ko) * 2017-10-26 2019-05-07 현대자동차주식회사 배기가스 정화장치

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103752338B (zh) * 2014-02-08 2015-08-19 无锡威孚力达催化净化器有限责任公司 用于净化柴油机尾气的氧化催化剂的制备方法
IT201700050577A1 (it) * 2017-05-10 2018-11-10 Colorobbia Consulting S R L Supporto nanofunzionalizzato e metodo di realizzazione
EP3752462A4 (en) 2018-02-15 2021-11-17 Sumitomo Chemical Company Limited INORGANIC OXIDE
CN111741809B (zh) * 2018-03-28 2023-04-11 三井金属矿业株式会社 废气净化用催化剂
JP2021023853A (ja) * 2019-08-01 2021-02-22 トヨタ自動車株式会社 排ガス浄化装置及び排ガス浄化システム並びに排ガス浄化装置の製造方法
US10926245B1 (en) * 2019-08-21 2021-02-23 GM Global Technology Operations LLC Platinum-containing catalyst systems
JP7600910B2 (ja) * 2021-07-06 2024-12-17 トヨタ自動車株式会社 排ガス浄化用触媒

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6335305B1 (en) * 1999-01-18 2002-01-01 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for purifying exhaust gas
EP1066874B1 (en) * 1999-07-09 2009-09-23 Nissan Motor Company, Limited Exhaust gas purifying catalyst and method of producing same
DK1129764T3 (da) * 2000-03-01 2006-01-23 Umicore Ag & Co Kg Katalysator til rensning af udstödningsgas fra dieselmotorer og fremgangsmåde til dens fremstilling
JP3858625B2 (ja) * 2000-07-27 2006-12-20 株式会社豊田中央研究所 複合酸化物とその製造方法及び排ガス浄化用触媒とその製造方法
US6864214B2 (en) * 2000-09-26 2005-03-08 Daihatsu Motor Co., Ltd. Exhaust gas purifying catalyst
JP3845274B2 (ja) * 2001-06-26 2006-11-15 ダイハツ工業株式会社 排ガス浄化用触媒
JP4407117B2 (ja) 2002-12-17 2010-02-03 日産自動車株式会社 排気ガス浄化用触媒の製造方法
KR100527943B1 (ko) * 2003-06-04 2005-11-09 현대자동차주식회사 2중층 코팅구조의 팔라듐 삼원촉매 제조방법
KR100542911B1 (ko) * 2003-10-25 2006-01-11 한국과학기술연구원 연료전지 자동차에 이용되는 가솔린 개질용 저압차 촉매와 이의 제조방법
US7875250B2 (en) * 2003-12-11 2011-01-25 Umicore Ag & Co. Kg Exhaust treatment device, and methods of making the same
US7374729B2 (en) * 2004-03-30 2008-05-20 Basf Catalysts Llc Exhaust gas treatment catalyst
JP2005334801A (ja) * 2004-05-28 2005-12-08 Cataler Corp 排ガス浄化用触媒
US7795172B2 (en) * 2004-06-22 2010-09-14 Basf Corporation Layered exhaust treatment catalyst
JP2006043634A (ja) 2004-08-06 2006-02-16 Nissan Motor Co Ltd 排ガス浄化用触媒及び排ガス浄化用触媒の製造方法
US7576031B2 (en) * 2006-06-09 2009-08-18 Basf Catalysts Llc Pt-Pd diesel oxidation catalyst with CO/HC light-off and HC storage function
KR101155847B1 (ko) * 2006-06-14 2012-06-20 도요타 지도샤（주） 배기 가스 정화용 촉매
JP2008023501A (ja) * 2006-07-25 2008-02-07 Toyota Motor Corp 排ガス浄化用触媒
US7749472B2 (en) * 2006-08-14 2010-07-06 Basf Corporation Phosgard, a new way to improve poison resistance in three-way catalyst applications
US7517510B2 (en) * 2006-08-21 2009-04-14 Basf Catalysts Llc Layered catalyst composite
US7550124B2 (en) * 2006-08-21 2009-06-23 Basf Catalysts Llc Layered catalyst composite
US7758834B2 (en) * 2006-08-21 2010-07-20 Basf Corporation Layered catalyst composite
JP5100085B2 (ja) * 2006-10-31 2012-12-19 株式会社キャタラー 排ガス浄化用触媒
CN101568381B (zh) * 2007-02-01 2012-05-09 第一稀元素化学工业株式会社 用于机动车废气净化装置中的催化剂体系、使用该催化剂体系的废气净化装置及废气净化方法
US8067330B2 (en) * 2007-02-15 2011-11-29 Mazda Motor Corporation Catalytic material and catalyst for purifying exhaust gas component
US7977276B2 (en) * 2007-04-12 2011-07-12 Nissan Motor Co., Ltd. Exhaust gas purifying catalyst and method of producing the same
US8007750B2 (en) * 2007-07-19 2011-08-30 Basf Corporation Multilayered catalyst compositions
JP2009281192A (ja) 2008-05-20 2009-12-03 Mitsubishi Electric Corp 排ガス浄化装置
JP4751916B2 (ja) * 2008-06-30 2011-08-17 トヨタ自動車株式会社 排ガス浄化用触媒
JP2010051847A (ja) 2008-08-26 2010-03-11 Toyota Central R&D Labs Inc 排ガス浄化用触媒
US8337791B2 (en) * 2008-12-03 2012-12-25 Daiichi Kigenso Kagaku Kogyo Co., Ltd. Exhaust gas purification catalyst, exhaust gas purification apparatus using the same and exhaust gas purification method
US8211392B2 (en) * 2009-01-16 2012-07-03 Basf Corporation Diesel oxidation catalyst composite with layer structure for carbon monoxide and hydrocarbon conversion
US8568675B2 (en) * 2009-02-20 2013-10-29 Basf Corporation Palladium-supported catalyst composites
JP5492448B2 (ja) * 2009-04-28 2014-05-14 株式会社キャタラー 排ガス浄化用触媒
JP5515939B2 (ja) * 2010-03-26 2014-06-11 マツダ株式会社 排気ガス浄化用触媒

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190046333A (ko) * 2017-10-26 2019-05-07 현대자동차주식회사 배기가스 정화장치
KR102474347B1 (ko) * 2017-10-26 2022-12-05 현대자동차 주식회사 배기가스 정화장치

Also Published As

Publication number Publication date
BR112013032848B1 (pt) 2019-06-18
CN103619472A (zh) 2014-03-05
BR112013032848A2 (pt) 2017-02-14
CN103619472B (zh) 2016-03-09
US20140113807A1 (en) 2014-04-24
US8940657B2 (en) 2015-01-27
WO2012176605A1 (ja) 2012-12-27
RU2549880C1 (ru) 2015-05-10
EP2724777A4 (en) 2014-11-05
JP2013006147A (ja) 2013-01-10
EP2724777A1 (en) 2014-04-30

Similar Documents

Publication Publication Date Title
JP5578369B2 (ja) 排ガス浄化用触媒
CN102414412B (zh) 用于稀燃汽油机的改进的twc的稀烃转化
EP2797678B1 (en) Exhaust gas purification catalyst
US8007750B2 (en) Multilayered catalyst compositions
JP5816648B2 (ja) 排気ガス浄化用触媒組成物及び排気ガス浄化用触媒
EP1938895A1 (en) Catalyst containing little or no rhodium for purifying exhaust gases of internal combustion engine
JP5176727B2 (ja) 排気ガス浄化用触媒材の製造方法、及び排気ガス浄化用触媒
JP2008023501A (ja) 排ガス浄化用触媒
JP2012187518A (ja) 排ガス浄化用触媒
CN113260454A (zh) 层状三元转化(twc)催化剂和制造所述催化剂的方法
JPWO2017222017A1 (ja) リーンバーン用触媒
JP5925956B2 (ja) 排気ガス浄化用触媒組成物及び排気ガス浄化触媒
JP2014144426A (ja) 排気ガス浄化触媒
JP2006192357A (ja) 排ガス浄化用触媒
JP6175275B2 (ja) 排ガス浄化用触媒
JP2005279437A (ja) 排ガス浄化用触媒
JP5328133B2 (ja) 排ガス浄化用触媒
JP5524820B2 (ja) パティキュレート燃焼触媒、その製造方法、パティキュレートフィルター及びその製造方法
KR101336595B1 (ko) 이봉 분포 입자크기 지지체들을 가지는 배기가스 정화용 촉매
JP2010227873A (ja) 排ガス浄化用触媒および排ガス浄化用触媒の製造方法
JP2010022921A (ja) 排ガス浄化用触媒

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20131001

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140206

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140311

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140612

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140625

R151 Written notification of patent or utility model registration

Ref document number: 5578369

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

LAPS Cancellation because of no payment of annual fees