Novel method to control the size of well-crystalline ceria particles by hydrothermal method

Myoung Hwan Oh; Jun Seok Nho; Seung Beom Cho; Jae Seok Lee; Rajiv K. Singh

doi:10.1016/j.matchemphys.2010.06.004

Novel method to control the size of well-crystalline ceria particles by hydrothermal method

Myoung Hwan Oh, Jun Seok Nho, Seung Beom Cho, Jae Seok Lee, Rajiv K. Singh

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Well-crystalline ceria particles were synthesized by heating peptized ceria sol as precursor under hydrothermal conditions. The morphology and the crystallites size of hydrothermal ceria particles were controlled by varying the dielectric property of solvent used in preparation of the ceria precursor. The synthesized particles exhibit cubic fluorite structure with size ranged from 20 to 400 nm without the formation of hard aggregates. In this work, the relationships between dielectric property of the solvent and particle size were investigated in terms of the supersaturation of solute. In addition, the influences of precipitation participating anions (OH^-) and acidic hydrothermal medium on crystallites size of ceria particles were studied.

Original language	English
Pages (from-to)	134-139
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	124
Issue number	1
DOIs	https://doi.org/10.1016/j.matchemphys.2010.06.004
State	Published - 1 Nov 2010
Externally published	Yes

Keywords

Ceramics
Chemical synthesis
Nucleation
Oxides

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10.1016/j.matchemphys.2010.06.004

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abstract = "Well-crystalline ceria particles were synthesized by heating peptized ceria sol as precursor under hydrothermal conditions. The morphology and the crystallites size of hydrothermal ceria particles were controlled by varying the dielectric property of solvent used in preparation of the ceria precursor. The synthesized particles exhibit cubic fluorite structure with size ranged from 20 to 400 nm without the formation of hard aggregates. In this work, the relationships between dielectric property of the solvent and particle size were investigated in terms of the supersaturation of solute. In addition, the influences of precipitation participating anions (OH-) and acidic hydrothermal medium on crystallites size of ceria particles were studied.",

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AU - Oh, Myoung Hwan

AU - Nho, Jun Seok

AU - Cho, Seung Beom

AU - Lee, Jae Seok

AU - Singh, Rajiv K.

PY - 2010/11/1

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N2 - Well-crystalline ceria particles were synthesized by heating peptized ceria sol as precursor under hydrothermal conditions. The morphology and the crystallites size of hydrothermal ceria particles were controlled by varying the dielectric property of solvent used in preparation of the ceria precursor. The synthesized particles exhibit cubic fluorite structure with size ranged from 20 to 400 nm without the formation of hard aggregates. In this work, the relationships between dielectric property of the solvent and particle size were investigated in terms of the supersaturation of solute. In addition, the influences of precipitation participating anions (OH-) and acidic hydrothermal medium on crystallites size of ceria particles were studied.

AB - Well-crystalline ceria particles were synthesized by heating peptized ceria sol as precursor under hydrothermal conditions. The morphology and the crystallites size of hydrothermal ceria particles were controlled by varying the dielectric property of solvent used in preparation of the ceria precursor. The synthesized particles exhibit cubic fluorite structure with size ranged from 20 to 400 nm without the formation of hard aggregates. In this work, the relationships between dielectric property of the solvent and particle size were investigated in terms of the supersaturation of solute. In addition, the influences of precipitation participating anions (OH-) and acidic hydrothermal medium on crystallites size of ceria particles were studied.

KW - Ceramics

KW - Chemical synthesis

KW - Nucleation

KW - Oxides

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Novel method to control the size of well-crystalline ceria particles by hydrothermal method

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Keywords

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