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Nano Research 2014, 7(9): 1311-1318 https://doi.org/10.1007/s12274-014-0495-y
Research Article | Issue | Published: 05 August 2014

Shape-controlled growth of SrTiO3 polyhedral submicro/nanocrystals

Show Author's Information Lingqing Dong1,2,§,  Hui Shi3,§,  Kui Cheng1,  Qi Wang3,  Wenjian Weng1,4( ),  Weiqiang Han1,2,5( )
Department of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and ApplicationsZhejiang UniversityHangzhou310027China
Ningbo Institute of Materials Technology & EngineeringChinese Academy of SciencesNingbo315210China
Soft Matter Research Center and Department of ChemistryZhejiang UniversityHangzhou310027China
Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China
School of Physical Science and TechnologyShanghaiTech UniversityShanghai200031China

§ These authors contributed equally to this work.

Keywords:
BaTiO3, SrTiO3, shape-controlled growth, alcohol molecules, pKa values
Cite this article:
Dong L, Shi H, Cheng K, et al. Shape-controlled growth of SrTiO3 polyhedral submicro/nanocrystals. Nano Research, 2014, 7(9): 1311-1318. https://doi.org/10.1007/s12274-014-0495-y
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Abstract Full text Electronic supplementary material About this article

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 pKa 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 pKa 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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Electronic supplementary material
About this article

Shape-controlled growth of SrTiO3 polyhedral submicro/nanocrystals

Show Author's information Lingqing Dong1,2,§, Hui Shi3,§, Kui Cheng1, Qi Wang3, Wenjian Weng1,4( ), Weiqiang Han1,2,5( )
Department of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and ApplicationsZhejiang UniversityHangzhou310027China
Ningbo Institute of Materials Technology & EngineeringChinese Academy of SciencesNingbo315210China
Soft Matter Research Center and Department of ChemistryZhejiang UniversityHangzhou310027China
Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China
School of Physical Science and TechnologyShanghaiTech UniversityShanghai200031China

§ These authors contributed equally to this work.

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 pKa 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 pKa 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.

Keywords: BaTiO3, SrTiO3, shape-controlled growth, alcohol molecules, pKa values

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Publication history
Copyright
Acknowledgements

Publication history

Received: 10 February 2014
Revised: 04 May 2014
Accepted: 11 May 2014
Published: 05 August 2014
Issue date: September 2014

Copyright

© Tsinghua University Press and Springer‐Verlag Berlin Heidelberg 2014

Acknowledgements

Acknowledgements

This work was supported by the National Basic Research Program of China (973 Program) (No. 2012CB933600), the National Natural Science Foundation of China (Nos. 51072178, 51272228, 51371186, 81071258 and 21273200). W. H. thanks the Project of the Ningbo 3315 International Team for support.

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