WO2011009291A1 - Microsphère d’oxyde de cérium utilisée en tant que matériau de référence de taille et son procédé de préparation - Google Patents

Microsphère d’oxyde de cérium utilisée en tant que matériau de référence de taille et son procédé de préparation Download PDF

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Publication number
WO2011009291A1
WO2011009291A1 PCT/CN2010/001097 CN2010001097W WO2011009291A1 WO 2011009291 A1 WO2011009291 A1 WO 2011009291A1 CN 2010001097 W CN2010001097 W CN 2010001097W WO 2011009291 A1 WO2011009291 A1 WO 2011009291A1
Authority
WO
WIPO (PCT)
Prior art keywords
cerium
reaction
microsphere
hydrothermal
ceria
Prior art date
Application number
PCT/CN2010/001097
Other languages
English (en)
Chinese (zh)
Inventor
陈运法
王奇
王震
沈根利
叶树峰
Original Assignee
中国科学院过程工程研究所
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 claimed from CN2009100895383A external-priority patent/CN101825551B/zh
Priority claimed from CN2009100895398A external-priority patent/CN101825552B/zh
Application filed by 中国科学院过程工程研究所 filed Critical 中国科学院过程工程研究所
Publication of WO2011009291A1 publication Critical patent/WO2011009291A1/fr

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Classifications

    • 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
    • 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
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres

Definitions

  • the cerium salt is a trivalent cerium salt which is easily soluble in water
  • the polyvinylpyrrolidone has a molecular weight of 8000 to 360,000, including PVP K15, PVP K17, PVP K25, PVP ⁇ 30, PVP ⁇ 40, PVP ⁇ 60 and PVP ⁇ 90
  • hydrothermal kettle filling degree is 50 ⁇ 80%
  • stirring speed in two hydrothermal reactions is 10 ⁇ 800 rpm.
  • Another object of the present invention is to provide a method of preparing the above-described ceria microspheres.
  • the method of preparing ceria microspheres according to the present invention is:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

L’invention concerne une microsphère d’oxyde de cérium utilisée en tant que matériau de référence de taille et son procédé de préparation. La microsphère d’oxyde de cérium est une microsphère hybride inorganique-organique constituée d’oxyde de cérium et de polyvinylpyrrolidone en un rapport en poids de 11 à 16:1. La microsphère hybride inorganique-organique a une structure polycristalline qui appartient au système cubique de type fluorite et a une cellule unitaire cubique à faces centrées. La microsphère a un facteur de forme inférieur à 1,2 et une incertitude de taille relative inférieure à 5 %. Le matériau de référence de taille de particule formé par la microsphère d’oxyde de cérium possède des avantages, tels qu’un poids spécifique élevé, une grande stabilité à la température, une grande résistance aux acides ou aux alcalis, un non-gonflement en solvants organiques et une grande résistance à l’invasion bactérienne.
PCT/CN2010/001097 2009-07-23 2010-07-20 Microsphère d’oxyde de cérium utilisée en tant que matériau de référence de taille et son procédé de préparation WO2011009291A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200910089538.3 2009-07-23
CN2009100895383A CN101825551B (zh) 2009-07-23 2009-07-23 一种用作尺寸标准物质的二氧化铈微球
CN200910089539.8 2009-07-23
CN2009100895398A CN101825552B (zh) 2009-07-23 2009-07-23 一种用作尺寸标准物质的二氧化铈微球的制备方法

Publications (1)

Publication Number Publication Date
WO2011009291A1 true WO2011009291A1 (fr) 2011-01-27

Family

ID=43498732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/001097 WO2011009291A1 (fr) 2009-07-23 2010-07-20 Microsphère d’oxyde de cérium utilisée en tant que matériau de référence de taille et son procédé de préparation

Country Status (1)

Country Link
WO (1) WO2011009291A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108557863A (zh) * 2018-05-29 2018-09-21 淮北师范大学 一种氧化镧的制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072466A1 (fr) * 2006-10-10 2009-06-24 National Institute Of Advanced Industrial Science Microparticule d'oxyde de cérium de type noyau-coquille, solution de dispersion comprenant la microparticule et procédé de production de la microparticule ou de la solution de dispersion

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072466A1 (fr) * 2006-10-10 2009-06-24 National Institute Of Advanced Industrial Science Microparticule d'oxyde de cérium de type noyau-coquille, solution de dispersion comprenant la microparticule et procédé de production de la microparticule ou de la solution de dispersion

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PHOKA, SUMALIN ET AL.: "Synthesis, Structural and Optical Properties of CeO2 Nanoparticles Synthesized by a Simple Polyvinyl Pyrrolidone (PVP) Solution route", MATERIALS CHEMISTRY AND PHYSICS, vol. 115, no. 1, 15 May 2009 (2009-05-15), pages 423 - 428, XP025993941, DOI: doi:10.1016/j.matchemphys.2008.12.031 *
ZHOU, FU ET AL.: "CeO2 Spherical Crystallites: Synthesis, Formation Mechanism, Size Control, and Electrochemical Property Study", J. PHYS. CHEM. C, vol. 111, no. 4, pages 1651 - 1657 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108557863A (zh) * 2018-05-29 2018-09-21 淮北师范大学 一种氧化镧的制备方法
CN108557863B (zh) * 2018-05-29 2020-05-05 淮北师范大学 一种氧化镧的制备方法

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