Nearly Monodisperse Ferroelectric BaTiO3 Hollow Nanoparticles: Size-Related Solid Evacuation in Ostwald-Ripening-lnduced Hollowing Process
Tian Xuelin; Li Juan; Chen Kai; Han Jian; Pan Shilie; Wang Yongjiang; Fan Xiaoyun; Li Feng; Zhou Zhongxiang; Pan, SL
2010
Source PublicationCRYSTAL GROWTH & DESIGN
ISSN1528-7483
Volume10Issue:9Pages:3990-3995
Abstract

Nearly monodisperse BaTiO3 hollow nanoparticles were prepared through a one-pot template-free route in molten hydrated salt medium. The composition and morphologies of the time-dependent products were investigated in detail, and Ostwald ripening is concluded to be responsible for the hollowing evolvement of the BaTiO3 particles. The size of the initial solid particles is proposed to play an important role in determining the evacuation manner of the solid in the ripening-induced hollowing process, that is, evacuating from the center region or underneath the surface layer of the solid aggregates, and could result in the morphology variation (i.e., hollow geometry or core-shell one) of the final products. Our study also points out that a highly active precursor is crucial to improve the uniformity of the products, and elevated reaction temperature is a prerequisite to activate the hollowing evolvement of solid aggregates. Second-harmonic-generation and Raman analyses revealed the ferroelectric tetragonal characteristic of the obtained BaTiO3 hollow nanoparticles, and the tetragonality (c/a) was quantified to be about 1.005 according to the Rietveld refinement of the X-ray diffraction pattern.

Subject AreaChemistry ; Crystallography ; Materials Science
DOI10.1021/cg1005727
Indexed BySCI
WOS IDWOS:000281353900024
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/2819
Collection新疆维吾尔自治区电子信息材料与器件重点实验室
Corresponding AuthorPan, SL
AffiliationChinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Plant Resources & Chem Arid Zone, Urumqi 830011, Peoples R China;Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
Recommended Citation
GB/T 7714
Tian Xuelin,Li Juan,Chen Kai,et al. Nearly Monodisperse Ferroelectric BaTiO3 Hollow Nanoparticles: Size-Related Solid Evacuation in Ostwald-Ripening-lnduced Hollowing Process[J]. CRYSTAL GROWTH & DESIGN,2010,10(9):3990-3995.
APA Tian Xuelin.,Li Juan.,Chen Kai.,Han Jian.,Pan Shilie.,...&Pan, SL.(2010).Nearly Monodisperse Ferroelectric BaTiO3 Hollow Nanoparticles: Size-Related Solid Evacuation in Ostwald-Ripening-lnduced Hollowing Process.CRYSTAL GROWTH & DESIGN,10(9),3990-3995.
MLA Tian Xuelin,et al."Nearly Monodisperse Ferroelectric BaTiO3 Hollow Nanoparticles: Size-Related Solid Evacuation in Ostwald-Ripening-lnduced Hollowing Process".CRYSTAL GROWTH & DESIGN 10.9(2010):3990-3995.
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