Facile synthesis of ceria nanospheres by Ce(OH)CO3 precursors

Yong Chen; Changjun Qiu; Chunlin Chen; Xiangfang Fan; Sibo Xu; Weiwei Guo; Zhongchang Wang

doi:10.1016/j.matlet.2014.01.178

Facile synthesis of ceria nanospheres by Ce(OH)CO₃ precursors

Yong Chen, Changjun Qiu, Chunlin Chen, Xiangfang Fan, Sibo Xu, Weiwei Guo, Zhongchang Wang

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

26 Citations (Scopus)

Abstract

Spherical Ce(OH)CO₃ precursors were prepared via a facile and an efficient hydrothermal process without hard templates. X-ray diffraction (XRD) analysis reveals that the as-synthesized spherical precursors are composed of high-purity Ce(OH)CO₃ with a hexagonal structure. After calcination at 573 K for 10 h, the spherical Ce(OH)CO₃ precursors decompose into CeO₂ nanospheres with a cubic fluorite structure. We also find that morphology of the Ce(OH)CO₃ precursors and CeO₂ nanospheres is modified significantly as a function of the different surfactants used in the hydrothermal process. When using PEG surfactant, the Ce(OH)CO ₃ precursors and CeO₂ nanospheres turn compact with wrinkles on surface, while they appear like nanospheres formed by aggregated nanoparticles when the PVP surfactant is used. The CeO₂ nanospheres prepared by both surfactants exhibit excellent ultraviolet shelter ability and hold promise for a wide range of technological applications.

Original language	English
Pages (from-to)	90-93
Number of pages	4
Journal	Materials Letters
Volume	122
DOIs	https://doi.org/10.1016/j.matlet.2014.01.178
Publication status	Published - 2014 May 1

Keywords

Ce(OH)CO precursor
CeO sphere
Hydrothermal synthesis process
UV-shielding functionality

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2014.01.178

Cite this

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title = "Facile synthesis of ceria nanospheres by Ce(OH)CO3 precursors",

abstract = "Spherical Ce(OH)CO3 precursors were prepared via a facile and an efficient hydrothermal process without hard templates. X-ray diffraction (XRD) analysis reveals that the as-synthesized spherical precursors are composed of high-purity Ce(OH)CO3 with a hexagonal structure. After calcination at 573 K for 10 h, the spherical Ce(OH)CO3 precursors decompose into CeO2 nanospheres with a cubic fluorite structure. We also find that morphology of the Ce(OH)CO3 precursors and CeO2 nanospheres is modified significantly as a function of the different surfactants used in the hydrothermal process. When using PEG surfactant, the Ce(OH)CO 3 precursors and CeO2 nanospheres turn compact with wrinkles on surface, while they appear like nanospheres formed by aggregated nanoparticles when the PVP surfactant is used. The CeO2 nanospheres prepared by both surfactants exhibit excellent ultraviolet shelter ability and hold promise for a wide range of technological applications.",

keywords = "Ce(OH)CO precursor, CeO sphere, Hydrothermal synthesis process, UV-shielding functionality",

author = "Yong Chen and Changjun Qiu and Chunlin Chen and Xiangfang Fan and Sibo Xu and Weiwei Guo and Zhongchang Wang",

note = "Funding Information: C.C. acknowledges support from the Grant-in-Aid for Young Scientists (B) (Grant no. 24760532 ). Z.W. thanks financial supports from the Grant-in-Aid for Young Scientists (A) (Grant no. 24686069 ), the Challenging Exploratory Research (Grant no. 24656376 ), the Sasakawa Scientific Research Grant and the JGC-S Foundation . Y.C thanks the financial support by the construct program of the key discipline in HuNan province. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "2014",

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doi = "10.1016/j.matlet.2014.01.178",

language = "English",

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AU - Chen, Yong

AU - Qiu, Changjun

AU - Chen, Chunlin

AU - Fan, Xiangfang

AU - Xu, Sibo

AU - Guo, Weiwei

AU - Wang, Zhongchang

N1 - Funding Information: C.C. acknowledges support from the Grant-in-Aid for Young Scientists (B) (Grant no. 24760532 ). Z.W. thanks financial supports from the Grant-in-Aid for Young Scientists (A) (Grant no. 24686069 ), the Challenging Exploratory Research (Grant no. 24656376 ), the Sasakawa Scientific Research Grant and the JGC-S Foundation . Y.C thanks the financial support by the construct program of the key discipline in HuNan province. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2014/5/1

Y1 - 2014/5/1

N2 - Spherical Ce(OH)CO3 precursors were prepared via a facile and an efficient hydrothermal process without hard templates. X-ray diffraction (XRD) analysis reveals that the as-synthesized spherical precursors are composed of high-purity Ce(OH)CO3 with a hexagonal structure. After calcination at 573 K for 10 h, the spherical Ce(OH)CO3 precursors decompose into CeO2 nanospheres with a cubic fluorite structure. We also find that morphology of the Ce(OH)CO3 precursors and CeO2 nanospheres is modified significantly as a function of the different surfactants used in the hydrothermal process. When using PEG surfactant, the Ce(OH)CO 3 precursors and CeO2 nanospheres turn compact with wrinkles on surface, while they appear like nanospheres formed by aggregated nanoparticles when the PVP surfactant is used. The CeO2 nanospheres prepared by both surfactants exhibit excellent ultraviolet shelter ability and hold promise for a wide range of technological applications.

AB - Spherical Ce(OH)CO3 precursors were prepared via a facile and an efficient hydrothermal process without hard templates. X-ray diffraction (XRD) analysis reveals that the as-synthesized spherical precursors are composed of high-purity Ce(OH)CO3 with a hexagonal structure. After calcination at 573 K for 10 h, the spherical Ce(OH)CO3 precursors decompose into CeO2 nanospheres with a cubic fluorite structure. We also find that morphology of the Ce(OH)CO3 precursors and CeO2 nanospheres is modified significantly as a function of the different surfactants used in the hydrothermal process. When using PEG surfactant, the Ce(OH)CO 3 precursors and CeO2 nanospheres turn compact with wrinkles on surface, while they appear like nanospheres formed by aggregated nanoparticles when the PVP surfactant is used. The CeO2 nanospheres prepared by both surfactants exhibit excellent ultraviolet shelter ability and hold promise for a wide range of technological applications.

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KW - UV-shielding functionality

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