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Shape-controlled growth of SrTiO3 polyhedral submicro/nanocrystals

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Abstract

A series of SrTiO3 polyhedral submicro/nanocrystals with systematic morphology evolution from cubic to edge-truncated cubic and truncated rhombic dodecahedra have been synthesized by using a series of alcohol molecules with different acidities as surfactants. The concentration and pK a value of the alcohols both play important roles in determining the size and shape of the SrTiO3 polyhedral submicro/nanocrystals. The adsorption energy of alcohol molecules on SrTiO3 {110} facets depends on their pK a values, which are therefore critical for morphology control. Using the same strategy, a series of BaTiO3 polyhedral submicro/nanocrystals with systematic morphology evolution have also been successfully prepared.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou, 310027, China

    Lingqing Dong, Kui Cheng, Wenjian Weng & Weiqiang Han

  2. Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315210, China

    Lingqing Dong & Weiqiang Han

  3. Soft Matter Research Center and Department of Chemistry, Zhejiang University, Hangzhou, 310027, China

    Hui Shi & Qi Wang

  4. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China

    Wenjian Weng

  5. School of Physical Science and Technology, ShanghaiTech University, Shanghai, 200031, China

    Weiqiang Han

Authors
  1. Lingqing Dong
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  2. Hui Shi
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  3. Kui Cheng
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  4. Qi Wang
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  5. Wenjian Weng
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Correspondence to Wenjian Weng or Weiqiang Han.

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These authors contributed equally to this work.

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Dong, L., Shi, H., Cheng, K. et al. Shape-controlled growth of SrTiO3 polyhedral submicro/nanocrystals. Nano Res. 7, 1311–1318 (2014). https://doi.org/10.1007/s12274-014-0495-y

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  • DOI: https://doi.org/10.1007/s12274-014-0495-y

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