Synthesis of Multiwall Boron Nitride (BN) Nanotubes by a PVD Method Based on Vapor–Liquid–Solid Growth
oleh: Hao Guo, Yonggang Xu, Hetuo Chen, Zhengjuan Wang, Xiaojian Mao, Guohong Zhou, Jian Zhang, Shiwei Wang
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2020-02-01 |
Deskripsi
Multiwall boron nitride (BN) nanotubes were synthesized by a novel physical vapor deposition (PVD) method, in which the BN nanotubes grow on a compact substrate composed of AlN, γ-Al<sub>2</sub>O<sub>3</sub>, Y<sub>2</sub>O<sub>3</sub>, and carbon powders. The obtained BN nanotubes assemble in an orderly manner with a typical length of over one millimeter and a diameter of one-hundred nanometers. The hollow multiwall tubes have a spherical tip, which is presumed to be a liquid drop at the synthesis temperature, indicating the vapor−liquid−solid (VLS) growth mechanism.