CA2703881A1 - Inorganic mixed oxide and catalyst for purification of exhaust gas using the same - Google Patents

Inorganic mixed oxide and catalyst for purification of exhaust gas using the same Download PDF

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CA2703881A1
CA2703881A1 CA2703881A CA2703881A CA2703881A1 CA 2703881 A1 CA2703881 A1 CA 2703881A1 CA 2703881 A CA2703881 A CA 2703881A CA 2703881 A CA2703881 A CA 2703881A CA 2703881 A1 CA2703881 A1 CA 2703881A1
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mixed oxide
inorganic mixed
content
elements
total amount
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CA2703881C (en
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Miho Hatanaka
Toshitaka Tanabe
Naoki Takahashi
Takeru Yoshida
Yuki Aoki
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Cataler Corp
Toyota Motor Corp
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • 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
    • 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
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • 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
    • B01J35/30—
    • B01J35/40—
    • B01J35/56—
    • 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
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation
    • B01J37/033—Using Hydrolysis
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
    • C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/07—Purification ; Separation
    • C01B7/0706—Purification ; Separation of hydrogen chloride
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/006—Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen
    • 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
    • B01D2255/1023—Palladium
    • 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
    • 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
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/908—O2-storage component incorporated in the 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
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0415—Purification by absorption in liquids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/047—Composition of the impurity the impurity being carbon monoxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated

Abstract

A particulate inorganic mixed oxide comprising:
aluminum; zirconium; cerium; and first and second additional elements each selected from the group consisting of rare earth elements other than cerium and alkaline earth elements, wherein a content of aluminum in the inorganic mixed oxide is 60 to 90 at%, in terms of element content, relative to a total amount of elements which form cations in the inorganic mixed oxide; a content of cerium in the inorganic mixed oxide is 0.4 to 50 at%, in terms of element content, relative to a total amount of zirconium and cerium in the inorganic mixed oxide; a content of a total amount of the first and second additional elements is 1 to 12 at%, in terms of element content, relative to the total amount of the elements which form cations in the inorganic mixed oxide; at least 80% of primary particles of the inorganic mixed oxide have a particle diameter of 100 nm or less;
at least a part of the primary particles have an enriched surface region where a content of the second additional element is locally increased in a surface layer portion thereof; and an amount of the second additional element in the enriched surface region is 0.1 to 0.95% by mass, in terms of oxide, relative to a whole amount of the inorganic mixed oxide.

Claims (9)

1. A particulate inorganic mixed oxide comprising:
aluminum;

zirconium;
cerium; and first and second additional elements each selected from the group consisting of rare earth elements other than cerium and alkaline earth elements, wherein a content of aluminum in the inorganic mixed oxide is 60 to 90 at%, in terms of element content, relative to a total amount of elements which form cations in the inorganic mixed oxide, a content of cerium in the inorganic mixed oxide is 0.4 to 50 at%, in terms of element content, relative to a total amount of zirconium and cerium in the inorganic mixed oxide, a content of a total amount of the first and second additional elements is 1 to 12 at%, in terms of element content, relative to the total amount of the elements which form cations in the inorganic mixed oxide, at least 80% of primary particles of the inorganic mixed oxide have a particle diameter of 100 nm or less, at least a part of the primary particles have an enriched surface region where a content of the second additional element is locally increased in a surface layer portion thereof, and an amount of the second additional element in the enriched surface region is 0. 1 to 0.95% by mass, in terms of oxide, relative to a whole amount of the inorganic mixed oxide.
2. The inorganic mixed oxide according to claim 1, wherein each of the first and second additional elements is an element selected from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Mg, Ca, Sr, Ba, and Sc.
3. The inorganic mixed oxide according to claim 1, wherein each of the first and second additional elements is an element selected from the group consisting of Y, La, Pr, Nd, Yb, Mg, Ca, and Ba.
4. The inorganic mixed oxide according to claim 1, wherein the second additional element is at least one element selected from the group consisting of La, Pr and Nd.
5. The inorganic mixed oxide according to claim 1, wherein the first additional element is La, and the second additional element is Nd.
6. The inorganic mixed oxide according to claim 1, wherein a content of the first additional element in the inorganic mixed oxide is 0. 5 to 9 at% relative to the total amount of the elements which form cations in the inorganic mixed oxide.
7. The inorganic mixed oxide according to claim 1, wherein a content of the total amount of zirconium and cerium is 2.2 to 34,2 at%, in terms of element content, relative to the total amount of the elements which form cations in the inorganic mixed oxide.
8. A catalyst for purification of exhaust gas, wherein rhodium is supported on the inorganic mixed oxide according to any one of claims 1 to 7.
9. The catalyst for purification of exhaust gas according to claim 8, wherein an amount of the rhodium supported is 0. 01 to 1% by mass relative to the total amount of the inorganic mixed oxide.
CA2703881A 2007-10-31 2008-10-17 Inorganic mixed oxide and catalyst for purification of exhaust gas using the same Expired - Fee Related CA2703881C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007-283504 2007-10-31
JP2007283504A JP5099828B2 (en) 2007-10-31 2007-10-31 Inorganic mixed oxide and exhaust gas purification catalyst using the same
PCT/JP2008/068900 WO2009057468A1 (en) 2007-10-31 2008-10-17 Inorganic mixed oxide and exhaust gas purification catalysts made by using the same

Publications (2)

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CA2703881A1 true CA2703881A1 (en) 2009-05-07
CA2703881C CA2703881C (en) 2012-12-18

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US (1) US8043992B2 (en)
EP (1) EP2213622B9 (en)
JP (1) JP5099828B2 (en)
KR (1) KR101084031B1 (en)
CN (1) CN101842321B (en)
CA (1) CA2703881C (en)
WO (1) WO2009057468A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5690736B2 (en) 2009-09-10 2015-03-25 株式会社キャタラー Exhaust gas purification catalyst and method for producing the same
JP5903205B2 (en) 2010-01-04 2016-04-13 株式会社キャタラー Exhaust gas purification catalyst
KR20140011312A (en) * 2011-01-13 2014-01-28 엔.이. 켐캣 가부시키가이샤 Denitration catalyst composition and method of denitration using same
US8450219B2 (en) * 2011-09-29 2013-05-28 Atomic Energy Council—Institute of Nuclear Research Method of fabricating Al2O3 thin film layer
JP5576420B2 (en) * 2012-03-21 2014-08-20 トヨタ自動車株式会社 Exhaust gas purification catalyst
CN104415744B (en) * 2013-09-10 2016-08-31 湖南稀土金属材料研究院 The preparation method of polynary praseodymium based oxygen storage material Pr-Zr-Tb-Y-Sc
JP5883425B2 (en) * 2013-10-04 2016-03-15 株式会社豊田中央研究所 Ceria-zirconia composite oxide, production method thereof, and exhaust gas purification catalyst using the ceria-zirconia composite oxide
US11154840B2 (en) * 2013-12-23 2021-10-26 Rhodia Operations Inorganic oxide material
WO2019088302A1 (en) * 2017-11-06 2019-05-09 新日本電工株式会社 Oxygen absorbing and releasing material, catalyst, exhaust gas purifying system, and exhaust gas treatment method
JP6759272B2 (en) * 2018-04-24 2020-09-23 株式会社豊田中央研究所 Oxygen storage material and its manufacturing method
JP6670880B2 (en) * 2018-04-24 2020-03-25 株式会社豊田中央研究所 Oxygen storage material and method for producing the same
WO2020129455A1 (en) * 2018-12-21 2020-06-25 日揮触媒化成株式会社 Metal scavenger, method for manufacturing metal scavenger, and fluid catalytic cracking catalyst

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3549346B2 (en) * 1996-12-06 2004-08-04 信越化学工業株式会社 Rare earth oxide
JP3993269B2 (en) * 1997-04-18 2007-10-17 スリーエム カンパニー Transparent beads and method for producing the same
EP1020216B1 (en) * 1999-01-18 2004-06-02 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for purifying exhaust gas
US6544647B1 (en) * 1999-07-26 2003-04-08 Toda Kogyo Corporation Non-magnetic composite particles, process for producing the same and magnetic recording medium using the same
DE60031258T2 (en) * 2000-07-14 2007-05-03 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for purifying exhaust gas
JP4006976B2 (en) * 2000-11-15 2007-11-14 株式会社豊田中央研究所 Composite oxide powder, method for producing the same and catalyst
CA2437607A1 (en) * 2001-02-09 2002-08-22 Akzo Nobel N.V. Process for the preparation of anionic clay and boehmite-containing compositions, compositions containing anionic clay and boehmite and catalysts derived therefrom
JP4032652B2 (en) 2001-02-23 2008-01-16 株式会社豊田中央研究所 Composite oxide powder and method for producing the same
JP2004141781A (en) * 2002-10-25 2004-05-20 Mazda Motor Corp Production method for catalyst material
US7202194B2 (en) * 2003-03-17 2007-04-10 Umicore Ag & Co. Kg Oxygen storage material, process for its preparation and its application in a catalyst
US7632477B2 (en) * 2003-04-30 2009-12-15 Magnesium Elektron, Ltd. Process for preparing zirconium oxides and zirconium-based mixed oxides
JP2005104799A (en) * 2003-10-01 2005-04-21 Toyota Central Res & Dev Lab Inc Compound oxide and catalyst for cleaning exhaust gas
US7820124B1 (en) * 2004-06-21 2010-10-26 General Electric Company Monodisperse nanoparticles and method of making
JP4794834B2 (en) 2004-07-22 2011-10-19 株式会社豊田中央研究所 Exhaust gas purification catalyst
DE602005016520D1 (en) 2004-07-22 2009-10-22 Toyota Motor Co Ltd INORGANIC OXIDE, EMISSION CLEANER CATALYST SUPPORT AND EMISSION CONTROL CATALYST
JP4545651B2 (en) * 2004-07-22 2010-09-15 株式会社豊田中央研究所 Inorganic oxide, exhaust purification catalyst carrier and exhaust purification catalyst
JP4602022B2 (en) * 2004-07-22 2010-12-22 株式会社豊田中央研究所 Inorganic oxide, exhaust purification catalyst carrier and exhaust purification catalyst
JP4602021B2 (en) * 2004-07-22 2010-12-22 株式会社豊田中央研究所 Inorganic oxide, exhaust purification catalyst carrier and exhaust purification catalyst
US7838460B2 (en) * 2005-01-28 2010-11-23 Kabushiki Kaisha Toyota Chuo Kenkyusho Nanoporous metal oxide material, catalyst support, and catalyst for hydrogen production reaction using the same
JP4765382B2 (en) * 2005-04-18 2011-09-07 トヨタ自動車株式会社 Manufacturing method of complex oxide with heat resistance
JP4835028B2 (en) * 2005-04-19 2011-12-14 マツダ株式会社 Exhaust gas purification catalyst
JP4465305B2 (en) * 2005-06-16 2010-05-19 株式会社キャタラー Exhaust gas purification catalyst
JP4901175B2 (en) * 2005-10-11 2012-03-21 株式会社キャタラー Exhaust gas purification catalyst and method for producing the same
US7625836B2 (en) * 2005-12-13 2009-12-01 Cataler Corporation Heat-resistant oxide
JP2007203208A (en) * 2006-02-02 2007-08-16 Mazda Motor Corp Catalyst for cleaning exhaust gas
JP4726714B2 (en) * 2006-06-16 2011-07-20 株式会社豊田中央研究所 Inorganic oxide and exhaust gas purifying catalyst using the same

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CN101842321A (en) 2010-09-22
US8043992B2 (en) 2011-10-25
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JP2009107901A (en) 2009-05-21
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