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Issue 41, 2011
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Dopant induced hollow BaTiO3 nanostructures for application in high performance capacitors

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Abstract

In this work, large-scale single crystalline Nd-doped BaTiO3 hollow nanoparticles have been synthesized via a simple hydrothermal method without the assistance of a surfactant or high temperature sintering. With unique hollow structures, the nanoparticles not only exhibit excellent compatibility with poly(vinylidene fluoride) (PVDF), but significantly enhanced the dielectric properties of the nanocomposites. We demonstrated that the dielectric constant of the nanocomposite reached up to 480.3 with dielectric loss of 0.6 at 102 Hz. Design and optimization of the synthesis method have been achieved through a systematic study of the effect of reaction conditions on the size and morphology evolution of the hollow nanoparticles. The formation of hollow nanostructures is proposed to follow a Kirkendall induced hollowing mechanism which is governed by the differences in diffusion rates of dopant ions, water molecules and core ions during the synthesis reaction.

Graphical abstract: Dopant induced hollow BaTiO3 nanostructures for application in high performance capacitors

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Publication details

The article was received on 30 May 2011, accepted on 23 Aug 2011 and first published on 14 Sep 2011


Article type: Paper
DOI: 10.1039/C1JM12429C
Citation: J. Mater. Chem., 2011,21, 16500-16504
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    Dopant induced hollow BaTiO3 nanostructures for application in high performance capacitors

    M. Lin, V. K. Thakur, E. J. Tan and P. S. Lee, J. Mater. Chem., 2011, 21, 16500
    DOI: 10.1039/C1JM12429C

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