WO2005102933A3 - Particule d’oxyde métallique, processus de production de celle-ci et catalyseur de purification des gaz d’évacuation - Google Patents

Particule d’oxyde métallique, processus de production de celle-ci et catalyseur de purification des gaz d’évacuation Download PDF

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Publication number
WO2005102933A3
WO2005102933A3 PCT/JP2005/008464 JP2005008464W WO2005102933A3 WO 2005102933 A3 WO2005102933 A3 WO 2005102933A3 JP 2005008464 W JP2005008464 W JP 2005008464W WO 2005102933 A3 WO2005102933 A3 WO 2005102933A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal oxide
exhaust gas
production process
gas purifying
purifying catalyst
Prior art date
Application number
PCT/JP2005/008464
Other languages
English (en)
Other versions
WO2005102933A2 (fr
Inventor
Masahide Miura
Oji Kuno
Original Assignee
Toyota Motor Co Ltd
Masahide Miura
Oji Kuno
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 Co Ltd, Masahide Miura, Oji Kuno filed Critical Toyota Motor Co Ltd
Priority to US10/591,797 priority Critical patent/US20070197373A1/en
Priority to EP05739092A priority patent/EP1771383A2/fr
Publication of WO2005102933A2 publication Critical patent/WO2005102933A2/fr
Publication of WO2005102933A3 publication Critical patent/WO2005102933A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • 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
    • B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
    • B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G1/00—Methods of preparing compounds of metals not covered by subclasses C01B, C01C, C01D, or C01F, in general
    • C01G1/02—Oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • 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
    • B01D2255/92—Dimensions
    • B01D2255/9202—Linear dimensions
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Analytical Chemistry (AREA)
  • Composite Materials (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

La présente invention propose une particule d’oxyde métallique pour un support catalytique comprenant de multiples espèces d’oxydes métalliques et capable d’exercer de manière satisfaisante les propriétés des oxydes métalliques respectifs, et propose également un processus de production de celle-ci et un catalyseur de purification des gaz d’évacuation obtenu à partir de cette particule d’oxyde métallique. Une particule d’oxyde métallique de la présente invention comprend une partie centrale 1 relativement riche en un premier oxyde métallique et une couche superficielle 2 relativement riche en un deuxième oxyde métallique, la partie centrale et la couche superficielle comprenant chacune une pluralité de particules primaires (1a, 2a), et le diamètre des particules primaires du deuxième oxyde métallique étant inférieur au diamètre des particules primaires du premier oxyde métallique.
PCT/JP2005/008464 2004-04-27 2005-04-27 Particule d’oxyde métallique, processus de production de celle-ci et catalyseur de purification des gaz d’évacuation WO2005102933A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/591,797 US20070197373A1 (en) 2005-04-27 2005-04-27 Zirconia core particles coated with ceria particles, production process thereof and exhaust gas purifying catalyst
EP05739092A EP1771383A2 (fr) 2004-04-27 2005-04-27 Particule d"oxyde métallique, processus de production de celle-ci et catalyseur de purification des gaz d"évacuation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004131619A JP4165442B2 (ja) 2004-04-27 2004-04-27 金属酸化物粒子及びその製造方法、並びに排ガス浄化触媒
JP2004-131619 2004-04-27

Publications (2)

Publication Number Publication Date
WO2005102933A2 WO2005102933A2 (fr) 2005-11-03
WO2005102933A3 true WO2005102933A3 (fr) 2006-01-12

Family

ID=35064471

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/008464 WO2005102933A2 (fr) 2004-04-27 2005-04-27 Particule d’oxyde métallique, processus de production de celle-ci et catalyseur de purification des gaz d’évacuation

Country Status (4)

Country Link
EP (1) EP1771383A2 (fr)
JP (1) JP4165442B2 (fr)
CN (1) CN1972871A (fr)
WO (1) WO2005102933A2 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4165419B2 (ja) 2004-03-09 2008-10-15 トヨタ自動車株式会社 金属酸化物粒子及び排ガス浄化触媒の製造方法
WO2005102523A1 (fr) 2004-04-27 2005-11-03 Toyota Jidosha Kabushiki Kaisha Processus de production d’une particule d’oxyde métallique et un catalyseur de purification des gaz d’évacuation
JP4165443B2 (ja) 2004-04-27 2008-10-15 トヨタ自動車株式会社 金属酸化物粒子の製造方法、及び排ガス浄化触媒
JP4179299B2 (ja) 2005-03-23 2008-11-12 トヨタ自動車株式会社 触媒担体粉末及び排ガス浄化触媒
CN101163537B (zh) * 2005-04-11 2011-12-14 本田技研工业株式会社 用于催化还原氮氧化物的催化剂、催化剂结构体和用于催化还原氮氧化物的方法
JP2007268460A (ja) 2006-03-31 2007-10-18 Toyota Motor Corp 金属酸化物触媒担体粒子、及び排ガス浄化触媒
JP5092281B2 (ja) * 2006-05-26 2012-12-05 株式会社豊田中央研究所 排ガス浄化装置
US7670679B2 (en) * 2006-05-30 2010-03-02 General Electric Company Core-shell ceramic particulate and method of making
JP4175387B2 (ja) * 2006-05-31 2008-11-05 トヨタ自動車株式会社 排ガス浄化触媒製造方法
US8993475B2 (en) 2006-07-06 2015-03-31 Cataler Corporation Oxygen storage material
JP4265626B2 (ja) * 2006-07-12 2009-05-20 トヨタ自動車株式会社 触媒担体粒子及びその製造方法、並びに排ガス浄化触媒
DE102007020962A1 (de) * 2007-05-04 2008-11-06 Robert Bosch Gmbh Beschichtung keramischer Träger
JP2008289971A (ja) 2007-05-23 2008-12-04 Toyota Motor Corp コアシェル構造体及びその製造方法並びに当該コアシェル構造体を含む排ガス浄化用触媒
JP2009045545A (ja) * 2007-08-20 2009-03-05 Denso Corp 触媒構造体及びそれを用いた触媒体
JP5034871B2 (ja) * 2007-10-30 2012-09-26 マツダ株式会社 排ガス成分浄化用触媒材及び同触媒材付パティキュレートフィルタ
US8187548B2 (en) 2007-10-30 2012-05-29 Mazda Motor Corporation Catalyst-supported particulate filter
JP5465843B2 (ja) * 2008-05-23 2014-04-09 トヨタ自動車株式会社 コアシェル構造体の製造方法及びそれにより製造されたコアシェル構造体を含む排ガス浄化用触媒
JP5465842B2 (ja) * 2008-05-23 2014-04-09 トヨタ自動車株式会社 コアシェル構造体及び当該コアシェル構造体を含む排ガス浄化用触媒
JP5320426B2 (ja) 2011-04-04 2013-10-23 トヨタ自動車株式会社 排ガス浄化触媒および排ガス浄化装置
JP5805986B2 (ja) 2011-04-22 2015-11-10 三井金属鉱業株式会社 内燃機関排気ガス浄化用触媒のための担体
JP2013203639A (ja) * 2012-03-29 2013-10-07 Admatechs Co Ltd 複合酸化物粉末
JP5887574B2 (ja) * 2012-08-03 2016-03-16 株式会社ノリタケカンパニーリミテド 自動車排ガス浄化用助触媒材およびその製造方法
JP6050703B2 (ja) * 2013-03-08 2016-12-21 株式会社キャタラー 排ガス浄化用触媒
KR20190003799A (ko) * 2016-05-26 2019-01-09 바스프 코포레이션 코어/쉘 촉매 입자 및 이의 제조 방법
US9914095B1 (en) * 2017-02-08 2018-03-13 Ford Global Technologies, Llc Catalyst for automotive emissions control
WO2019043346A1 (fr) 2017-09-01 2019-03-07 Rhodia Operations Oxyde mixte a base de cerium et de zirconium

Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2003277060A (ja) * 2002-03-22 2003-10-02 Toyota Motor Corp セリウム−ジルコニウム複合金属酸化物
JP2004074138A (ja) * 2002-06-17 2004-03-11 Toyota Motor Corp 排ガス浄化用触媒及び排ガス浄化方法
EP1415956A2 (fr) * 2002-10-28 2004-05-06 Toyota Jidosha Kabushiki Kaisha Préparation de particules d'oxides de métaux et catalyseur de prurification de gaz d'échappement

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2003277060A (ja) * 2002-03-22 2003-10-02 Toyota Motor Corp セリウム−ジルコニウム複合金属酸化物
JP2004074138A (ja) * 2002-06-17 2004-03-11 Toyota Motor Corp 排ガス浄化用触媒及び排ガス浄化方法
EP1415956A2 (fr) * 2002-10-28 2004-05-06 Toyota Jidosha Kabushiki Kaisha Préparation de particules d'oxides de métaux et catalyseur de prurification de gaz d'échappement

Non-Patent Citations (2)

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A.F. HOLLEMANN, E. WIBERG: "Lehrbuch der Anorganischen Chemie", 1995, W. DE GRUYTER, NEW YORK, XP002350463 *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) *

Also Published As

Publication number Publication date
EP1771383A2 (fr) 2007-04-11
JP4165442B2 (ja) 2008-10-15
WO2005102933A2 (fr) 2005-11-03
JP2005313029A (ja) 2005-11-10
CN1972871A (zh) 2007-05-30

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