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学科主题: Chemistry ; Crystallography ; Materials Science
题名: Nearly Monodisperse Ferroelectric BaTiO3 Hollow Nanoparticles: Size-Related Solid Evacuation in Ostwald-Ripening-lnduced Hollowing Process
作者: Tian Xuelin; Li Juan; Chen Kai; Han Jian; Pan Shilie; Wang Yongjiang; Fan Xiaoyun; Li Feng; Zhou Zhongxiang
通讯作者: Pan, SL
刊名: CRYSTAL GROWTH & DESIGN
发表日期: 2010
DOI: 10.1021/cg1005727
卷: 10, 期:9, 页:3990-3995
收录类别: SCI
资助者: National Natural Science Foundation of China 50802110; Chinese Academe of Sciences; Foundation of the Ministry of Education of China for Returned Scholars 20091001; Natural Science Foundation of Xinjiang Uygur Autonomous Region of China 2010211B25, 2009211B33, 200821159; Xinjiang Uygur Autonomous Region of China 200816120
摘要: 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.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/2819
Appears in Collections:新疆维吾尔自治区电子信息材料与器件重点实验室_期刊论文

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作者单位: Chinese 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:
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.
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文件名: nearly monodisperse ferroelectric batio3 hollow nanoparticles size-related solid evacuation in ostwald-ripening-induced hollowing process.pdf
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