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Structures and purification of boron nitride nanotubes synthesized from boron-based powders with iron particles

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Abstract

Boron nitride (BN) nanotubes, nanohorns and nanocoils were synthesized by annealing Fe4N/B, FeB and Fe/B powders at 1000 °C for 1–24 h in nitrogen gas atmosphere, and large amounts of BN nanotubes were obtained by annealing Fe4N/B. The growth mechanism and atomic structures were investigated on cup-stacked BN nanotubes synthesized from Fe4N/B by X-ray diffraction, high-resolution electron microscopy, electron diffraction and energy dispersive X-ray spectroscopy. As-produced BN soot was purified by removing non-BN nanomaterials such as metal catalyst particles and unreacted boron, and high purity BN nanotubes were obtained.

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Acknowledgements

The authors would like to thank Dr. I. Narita for experimental help and warm encouragement.

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Authors and Affiliations

  1. Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan

    Naruhiro Koi, Takeo Oku, Masahiro Inoue & Katsuaki Suganuma

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  1. Naruhiro Koi
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  2. Takeo Oku
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  3. Masahiro Inoue
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  4. Katsuaki Suganuma
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Corresponding author

Correspondence to Takeo Oku.

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Koi, N., Oku, T., Inoue, M. et al. Structures and purification of boron nitride nanotubes synthesized from boron-based powders with iron particles. J Mater Sci 43, 2955–2961 (2008). https://doi.org/10.1007/s10853-007-1750-3

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  • DOI: https://doi.org/10.1007/s10853-007-1750-3

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