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WO2000027527A1 - Preparation de catalyseurs metalliques nanocristallins et dispersibles sur support - Google Patents

Preparation de catalyseurs metalliques nanocristallins et dispersibles sur support Download PDF

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Publication number
WO2000027527A1
WO2000027527A1 PCT/GB1999/003657 GB9903657W WO0027527A1 WO 2000027527 A1 WO2000027527 A1 WO 2000027527A1 GB 9903657 W GB9903657 W GB 9903657W WO 0027527 A1 WO0027527 A1 WO 0027527A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal
metal oxide
product
catalyst
heated
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.)
Ceased
Application number
PCT/GB1999/003657
Other languages
English (en)
Inventor
Ashok Kumar Bhattacharya
Adrian Hartridge
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.)
University of Warwick
Original Assignee
University of Warwick
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 University of Warwick filed Critical University of Warwick
Priority to EP99954150A priority Critical patent/EP1126914A1/fr
Publication of WO2000027527A1 publication Critical patent/WO2000027527A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C01F17/224—Oxides or hydroxides of lanthanides
    • C01F17/235—Cerium oxides or hydroxides
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/88—Handling or mounting catalysts
    • B01D53/885—Devices in general for catalytic purification of waste gases
    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 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
    • B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
    • B01J35/45—Nanoparticles
    • 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
    • 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
    • B01J37/08—Heat treatment
    • B01J37/082—Decomposition and pyrolysis
    • B01J37/088—Decomposition of a metal salt
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/18—Methods for preparing oxides or hydroxides in general by thermal decomposition of compounds, e.g. of salts or hydroxides
    • C01B13/185—Preparing mixtures of oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/02—Oxides
    • 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
    • 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
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • 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

Definitions

  • the process of the invention may be used to prepare particles that are substantially nanocrystalline in nature (i.e. up to 100% of the individual, unagglomerated crystallites have a particle size of less than 500 nm (e.g. less than 250 nm, preferably less than 50 nm)), as used herein, the term "nanocrystalline" particles, includes that no more than 1 % of particles produced via the process of the invention are non-crystalline, and/or that no more than 1 % of particles produced via the process of the invention exceed a particle size of 500 nm, and in which the average crystallite sizes (Z av ) are in the range 3 to 250 nm (e.g. 4 to 100 nm and preferably 10 to 30 nm).
  • wet hydrous metal oxides and reducible metal salts are commercially available, are well known in the literature or are readily available using techniques which are well known to those skilled in the art, such as those described hereinafter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Composite Materials (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un produit comprenant des particules nanocristallines qui sont constituées d'au moins un métal ou d'au moins un oxyde métallique, sensiblement dispersé sur la surface d'au moins un oxyde métallique ou oxyde métallique mélangé. Le procédé consiste à : (a) chauffer un mélange comprenant au moins un oxyde métallique hydraté humide ou un oxyde métallique mélangé hydraté humique avec au moins un sel métallique réductible, pour former un gel humide ; (b) chauffer le gel humide à la température de décomposition du sel métallique réductible ; et (c) réduire la composition résultante.
PCT/GB1999/003657 1998-11-05 1999-11-04 Preparation de catalyseurs metalliques nanocristallins et dispersibles sur support Ceased WO2000027527A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99954150A EP1126914A1 (fr) 1998-11-05 1999-11-04 Preparation de catalyseurs metalliques nanocristallins et dispersibles sur support

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9824152.4A GB9824152D0 (en) 1998-11-05 1998-11-05 New product
GB9824152.4 1998-11-05

Publications (1)

Publication Number Publication Date
WO2000027527A1 true WO2000027527A1 (fr) 2000-05-18

Family

ID=10841834

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/003657 Ceased WO2000027527A1 (fr) 1998-11-05 1999-11-04 Preparation de catalyseurs metalliques nanocristallins et dispersibles sur support

Country Status (3)

Country Link
EP (1) EP1126914A1 (fr)
GB (1) GB9824152D0 (fr)
WO (1) WO2000027527A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1180397A1 (fr) * 2000-08-19 2002-02-20 OMG AG & Co. KG Matériau à base de cérium pour le stockage de l'oxygène, procédé de préparation dudit matériau et son utilisation pour le traitement des gaz d'échappement des moteurs à combustion interne
FR2832328A1 (fr) * 2001-11-20 2003-05-23 Centre Nat Rech Scient Catalyseur heterogene compose d'un agregat de nanoparticules metallisees
WO2003021245A3 (fr) * 2001-08-30 2003-08-21 Univ Dundee Capteur
EP1522341A1 (fr) * 2003-09-22 2005-04-13 Tanaka Kikinzoku Kogyo K.K. Agregat composé de métaux précieux-oxides de métaux précieux
WO2005123594A2 (fr) 2004-06-21 2005-12-29 Johnson Matthey Public Limited Company Sols d'oxyde metallique
WO2008055777A3 (fr) * 2006-11-08 2008-11-27 Air Liquide Nouveau catalyseur supporté à métal noble et utilisation dans la production d'un gaz de synthèse
EP2045011A4 (fr) * 2006-07-12 2011-03-02 Toyota Motor Co Ltd Particule porteuse catalytique, son procédé de fabrication et catalyseur de purification de gaz d'échappement
EP1955765A4 (fr) * 2005-11-01 2012-10-17 Nissan Motor Pot catalytique pour épuration des gaz d échappement et processus de fabrication idoine
FR2991713A1 (fr) * 2012-06-11 2013-12-13 Air Liquide Dispositif d'epuration des gaz d'echappement d'un moteur thermique comprenant un support ceramique fractionne a l'echelle nanometrique
US9126192B2 (en) 2004-06-21 2015-09-08 Johnson Matthey Public Limited Company Platinum group metal oxide sols
US20150258533A1 (en) * 2011-07-22 2015-09-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. Component for high-temperature applications, method for the production thereof, and use thereof
EP3119500A4 (fr) * 2014-03-21 2017-12-13 SDC Materials, Inc. Compositions pour systèmes d'adsorption de nox passive (pna) et leurs procédés de fabrication et d'utilisation
CN117466251A (zh) * 2023-11-22 2024-01-30 山东科源生化有限公司 一种利用稀土氧化钇制备高氯酸钇的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522191A (en) * 1976-01-07 1978-08-23 Atomic Energy Authority Uk Supported catalysts
EP0078098A2 (fr) * 1981-08-07 1983-05-04 United Kingdom Atomic Energy Authority Traitements de composés de cérium
WO1998051617A1 (fr) * 1997-05-10 1998-11-19 University Of Warwick Production a basse temperature d'oxydes metalliques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522191A (en) * 1976-01-07 1978-08-23 Atomic Energy Authority Uk Supported catalysts
EP0078098A2 (fr) * 1981-08-07 1983-05-04 United Kingdom Atomic Energy Authority Traitements de composés de cérium
WO1998051617A1 (fr) * 1997-05-10 1998-11-19 University Of Warwick Production a basse temperature d'oxydes metalliques

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7238639B2 (en) 2000-08-19 2007-07-03 Umicore Ag & Co. Kg Oxygen storage material based on cerium oxide, a process for its preparation and its use
EP1180397A1 (fr) * 2000-08-19 2002-02-20 OMG AG & Co. KG Matériau à base de cérium pour le stockage de l'oxygène, procédé de préparation dudit matériau et son utilisation pour le traitement des gaz d'échappement des moteurs à combustion interne
WO2003021245A3 (fr) * 2001-08-30 2003-08-21 Univ Dundee Capteur
FR2832328A1 (fr) * 2001-11-20 2003-05-23 Centre Nat Rech Scient Catalyseur heterogene compose d'un agregat de nanoparticules metallisees
WO2003043736A3 (fr) * 2001-11-20 2003-12-04 Centre Nat Rech Scient Catalyseur heterogene compose d'un agregat de nanoparticules metallisees
EP1522341A1 (fr) * 2003-09-22 2005-04-13 Tanaka Kikinzoku Kogyo K.K. Agregat composé de métaux précieux-oxides de métaux précieux
US8173572B2 (en) 2004-06-21 2012-05-08 Johnson Matthey Plc Metal oxide sols
WO2005123594A2 (fr) 2004-06-21 2005-12-29 Johnson Matthey Public Limited Company Sols d'oxyde metallique
US9126192B2 (en) 2004-06-21 2015-09-08 Johnson Matthey Public Limited Company Platinum group metal oxide sols
WO2005123594A3 (fr) * 2004-06-21 2006-03-16 Johnson Matthey Plc Sols d'oxyde metallique
US9073044B2 (en) 2005-11-01 2015-07-07 Nissan Motor Co., Ltd. Exhaust gas purifying catalyst and production method thereof
EP1955765A4 (fr) * 2005-11-01 2012-10-17 Nissan Motor Pot catalytique pour épuration des gaz d échappement et processus de fabrication idoine
US8404611B2 (en) 2005-11-01 2013-03-26 Nissan Motor Co., Ltd. Exhaust gas purifying catalyst and production method thereof
US8999886B2 (en) 2006-07-12 2015-04-07 Toyota Jidosha Kabushiki Kaisha Catalyst support particle, production process thereof and exhaust gas purifying catalyst
EP2045011A4 (fr) * 2006-07-12 2011-03-02 Toyota Motor Co Ltd Particule porteuse catalytique, son procédé de fabrication et catalyseur de purification de gaz d'échappement
WO2008055777A3 (fr) * 2006-11-08 2008-11-27 Air Liquide Nouveau catalyseur supporté à métal noble et utilisation dans la production d'un gaz de synthèse
US20150258533A1 (en) * 2011-07-22 2015-09-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. Component for high-temperature applications, method for the production thereof, and use thereof
FR2991713A1 (fr) * 2012-06-11 2013-12-13 Air Liquide Dispositif d'epuration des gaz d'echappement d'un moteur thermique comprenant un support ceramique fractionne a l'echelle nanometrique
WO2013186470A1 (fr) * 2012-06-11 2013-12-19 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé d' épuration des gaz d' échappement d' un moteur thermique au moyen d' un dispositif comprenant un support céramique fractionné a l'échelle manométrique
EP3119500A4 (fr) * 2014-03-21 2017-12-13 SDC Materials, Inc. Compositions pour systèmes d'adsorption de nox passive (pna) et leurs procédés de fabrication et d'utilisation
CN117466251A (zh) * 2023-11-22 2024-01-30 山东科源生化有限公司 一种利用稀土氧化钇制备高氯酸钇的方法
CN117466251B (zh) * 2023-11-22 2024-04-05 山东科源生化有限公司 一种利用稀土氧化钇制备高氯酸钇的方法

Also Published As

Publication number Publication date
GB9824152D0 (en) 1998-12-30
EP1126914A1 (fr) 2001-08-29

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