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Issue 34, 2014
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Novel three-dimensional boron nitride allotropes from compressed nanotube bundles

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Abstract

Phase transitions of single-walled boron nitride nanotube bundles under high pressure were investigated. Multiple three-dimensional boron nitride allotropes were identified from the transition products, which highly depended on factors including compressing mode, nanotube geometry, and intertube orientation. Sequential theoretical calculations indicated a variety of electronic and mechanical properties for these novel boron nitride polymorphs, such as tunable band gap, ductility, high tensile strength, and superhardness. Especially, a direct band gap superhard phase, 3D (10,0)-III, and a ductile superhard phase, 3D (4,4)-I, were revealed. This study should stimulate further theoretical and experimental work on novel boron nitride allotropes with unique electronic and mechanical properties.

Graphical abstract: Novel three-dimensional boron nitride allotropes from compressed nanotube bundles

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Supplementary files

Article information


Submitted
07 May 2014
Accepted
26 Jun 2014
First published
27 Jun 2014

J. Mater. Chem. C, 2014,2, 7022-7028
Article type
Paper

Novel three-dimensional boron nitride allotropes from compressed nanotube bundles

M. Xiong, C. Fan, Z. Zhao, Q. Wang, J. He, D. Yu, Z. Liu, B. Xu and Y. Tian, J. Mater. Chem. C, 2014, 2, 7022
DOI: 10.1039/C4TC00938J

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