Synthesis of vertically aligned boron nitride nanotubes with a template of single-walled carbon nanotubes

Boron nitride nanotubes have been proposed of having great potential in various applications due to their outstanding properties such as high thermal conductivity and excellent chemical stability. Here, we present a template-assisted method of synthesizing vertically-aligned boron nitride nanotubes...

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Bibliographic Details
Published in:Journal of materials research 2022-12, Vol.37 (24), p.4428-4437
Main Authors: Liu, Ming, Wang, Shuhui, Zheng, Yongjia, Takeuchi, Miyuki, Inoue, Taiki, Xiang, Rong, Maruyama, Shigeo
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Applied and Technical Physics
Arrays
Biomaterials
Boron nitride
Chemical composition
Chemical vapor deposition
Chemistry and Materials Science
Coating
Inorganic Chemistry
Invited Paper
Materials Engineering
Materials research
Materials Science
Nanotechnology
Oxidation
Raman spectroscopy
Single wall carbon nanotubes
Structural stability
Thermal conductivity
Thermal stability
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Summary:Boron nitride nanotubes have been proposed of having great potential in various applications due to their outstanding properties such as high thermal conductivity and excellent chemical stability. Here, we present a template-assisted method of synthesizing vertically-aligned boron nitride nanotubes (VA-BNNTs) from vertically-aligned single-walled carbon nanotubes (VA-SWCNTs). This approach involves a chemical vapor deposition of boron nitride layers coating onto VA-SWCNTs first and subsequent removal of VA-SWCNTs by the oxidation in pure oxygen. The obtained VA-SWCNTs covered by BNNTs and VA-BNNTs arrays retain a highly ordered vertically aligned structure. The thermal stability of VA-SWCNTs was enhanced by coating with BNNTs. The structure and crystalline conditions were characterized by scanning electron microscope and transmission electron microscope. The chemical composition of samples was investigated by UV–Vis–NIR absorption spectroscopy and Raman spectroscopy. Boron nitride coating starts onto VA-SWCNTs from the top of the VA-SWCNTs array, which is confirmed by NanoSIMS characterization. Graphical abstract
ISSN:0884-2914
2044-5326
DOI:10.1557/s43578-022-00759-z