High-Yield Synthesis of Bamboo-Like BN Nanotubes Using Self-Propagation High Temperature Synthesized Porous Precursor

Abstract:

High-yield and high-purity bamboo-like boron nitride nanotubes were synthesized via an effective chemical vapor deposition method by annealing porous precursor under ammonia atmosphere at 1150 °C. The porous precursor, prepared by self-propagation high temperature synthesis method, was the key to bulk synthesis process. The as-synthesized boron nitride nanotubes were characterized by SEM, TEM, HRTEM, XRD, Raman and FTIR spectroscopy. These nanotubes had a bamboo-like structure with uniform diameters about 90 nm and length of more than 10 μm. The associated growth model is proposed in this paper.

• Periodical: Materials Science Forum (Volume 694)
• Pages: 59-63
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.694.59
• Online since: July 2011
• Authors: Lai Ping Zhang, Ji Lin Wang, Yun Le Gu, Guo Wei Zhao, Qiong Li Qian, Jie Li, Xin Ye Pan, Zhan Hui Zhang
• Keywords: Boron Nitride, Nanotube, Porous Precursor, SHS, Synthesis

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