WO2005080271A3 - Process for the production of nanocrystalline oxides and mixed oxides of the lanthanides group, obtained products and their use - Google Patents

Process for the production of nanocrystalline oxides and mixed oxides of the lanthanides group, obtained products and their use Download PDF

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Publication number
WO2005080271A3
WO2005080271A3 PCT/EP2005/050709 EP2005050709W WO2005080271A3 WO 2005080271 A3 WO2005080271 A3 WO 2005080271A3 EP 2005050709 W EP2005050709 W EP 2005050709W WO 2005080271 A3 WO2005080271 A3 WO 2005080271A3
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Prior art keywords
oxides
production
process
use
nanocrystalline
Prior art date
Application number
PCT/EP2005/050709
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French (fr)
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WO2005080271A2 (en )
Inventor
Vincenzo Esposito
Silvia Licoccia
Alberto Rainer
Chavalit Trakanprapai
Enrico Traversa
Original Assignee
Vincenzo Esposito
Silvia Licoccia
Alberto Rainer
Chavalit Trakanprapai
Enrico Traversa
Univ Roma
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/50Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00Compounds of the rare earth metals, i.e. scandium, yttrium, lanthanum, or the group of the lanthanides
    • C01F17/0043Oxides or hydroxides
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605Treating the starting powders individually or as mixtures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605Treating the starting powders individually or as mixtures
    • C04B35/62625Wet mixtures
    • C04B35/6264Mixing media, e.g. organic solvents
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/50Solid solutions
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72Crystal-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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/80Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/88Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by thermal analysis data, e.g. TGA, DTA, DSC
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/64Nanometer sized, i.e. from 1-100 nanometer
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3229Cerium oxides or oxide-forming salts thereof

Abstract

The present invention relates to a process for the production of nanocrystalline oxides and mixed oxides of the lanthanides group, obtained products and their use.
PCT/EP2005/050709 2004-02-19 2005-02-17 Process for the production of nanocrystalline oxides and mixed oxides of the lanthanides group, obtained products and their use WO2005080271A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITRM2004A000089 2004-02-19
ITRM20040089A1 ITRM20040089A1 (en) 2004-02-19 2004-02-19 A process for the production of nanocrystalline oxides and mixed oxides of elements of the lanthanide group, obtained products and their use.

Publications (2)

Publication Number Publication Date
WO2005080271A2 true WO2005080271A2 (en) 2005-09-01
WO2005080271A3 true true WO2005080271A3 (en) 2005-12-29

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PCT/EP2005/050709 WO2005080271A3 (en) 2004-02-19 2005-02-17 Process for the production of nanocrystalline oxides and mixed oxides of the lanthanides group, obtained products and their use

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9114378B2 (en) 2012-03-26 2015-08-25 Brigham Young University Iron and cobalt based fischer-tropsch pre-catalysts and catalysts
US9289750B2 (en) 2013-03-09 2016-03-22 Brigham Young University Method of making highly porous, stable aluminum oxides doped with silicon

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9079164B2 (en) 2012-03-26 2015-07-14 Brigham Young University Single reaction synthesis of texturized catalysts

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0328715A1 (en) * 1988-02-19 1989-08-23 Tohru Yamamoto A catalyst for sol-gel method using metal alkoxide and sol-gel method using the same
EP0405891A2 (en) * 1989-06-26 1991-01-02 Exxon Research And Engineering Company High surface area oxide compositions and their use in the conversion of light hydrocarbons
FR2713218A1 (en) * 1993-12-01 1995-06-09 Rhone Poulenc Chimie Tantalum and/or niobium based mixed oxide prepn.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0328715A1 (en) * 1988-02-19 1989-08-23 Tohru Yamamoto A catalyst for sol-gel method using metal alkoxide and sol-gel method using the same
EP0405891A2 (en) * 1989-06-26 1991-01-02 Exxon Research And Engineering Company High surface area oxide compositions and their use in the conversion of light hydrocarbons
FR2713218A1 (en) * 1993-12-01 1995-06-09 Rhone Poulenc Chimie Tantalum and/or niobium based mixed oxide prepn.

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CHOI JAE YOUNG ET AL: "Preparation of monodisperse and spherical powders by heating of alcohol-aqueous salt solutions" J SOL GEL SCI TECHNOL; JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY 1999 KLUWER ACADEMIC PUBLISHERS, DORDRECHT, NETHERLANDS, vol. 15, no. 3, 1999, pages 231-241, XP002351546 *
LI J -G ET AL: "Characterization and sintering of nanocrystalline CeO2 powders synthesized by a mimic alkoxide method" ACTA MATER; ACTA MATERIALIA AUG 2001 ELSEVIER SCIENCE LTD, EXETER, ENGL, vol. 49, no. 3, August 2001 (2001-08), pages 419-426, XP002351342 cited in the application *
M. Z.-C. HU ET AL.: "Sol-Gel and Ultrafine Particle Formation via Dielectric Tuning of Inorganic Salt-Alcohol-Water solutions" JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 222, 2000, pages 20-36, XP002351547 *
MORI T ET AL: "Oxide ionic conductivity and microstructures of Sm- or La-doped CeO2-based systems" SOLID STATE IONICS, NORTH HOLLAND PUB. COMPANY. AMSTERDAM, NL, vol. 154-155, 2 December 2002 (2002-12-02), pages 461-466, XP004396248 ISSN: 0167-2738 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9114378B2 (en) 2012-03-26 2015-08-25 Brigham Young University Iron and cobalt based fischer-tropsch pre-catalysts and catalysts
US9289750B2 (en) 2013-03-09 2016-03-22 Brigham Young University Method of making highly porous, stable aluminum oxides doped with silicon

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