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Fabrication of Monodispersed 5-nm BaTiO3 Nanocrystals with Narrow Size Distribution via One-Step Solvothermal Route

Authors

  • Hui Zhang,

    1. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, China
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  • Xiaohui Wang,

    Corresponding author
    • State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, China
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  • Zhibin Tian,

    1. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, China
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  • Caifu Zhong,

    1. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, China
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  • Yichi Zhang,

    1. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, China
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  • Changku Sun,

    1. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, China
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  • Longtu Li

    1. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, China
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Author to whom correspondence should be addressed. e-mail: wxh@mail.tsinghua.edu.cn

Abstract

A convenient one-step solvothermal route has been developed to synthesize monodispersed barium titanate with narrow size distributions. The key point of this method is the controlling of hydrolysis of Ti(OC4H9)4 with Diethylene glycol. The as-prepared BaTiO3 nanoparticles were characterized by X-ray diffraction, transmission electron microscopy (TEM), high-resolution TEM, BET-specific surface area measurement and Raman spectrum. The monodispersed BaTiO3 nanoparticles obtained by this method have an average size of 5 nm with a narrow size distribution and a lattice tetragonality of 1.0069 ± 0.0010, which is promising for the ferroelectric science and its industry application.

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