Preparation and characterization of BN nanotubes with controllable sizes by templateaided synthesis

Yuting Wang, Shiro Shmada, Hajime Kiyono, Yasunori Yamamoto

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In this study, an efficient approach to prepare high quality BN nanotubes (BNNTs) was developed. BNNTs with specific sizes were prepared by sublimation of ammonia borane complex (BH3NH3) using two kinds of porous alumina anodic membrane template in two independently temperature controlled furnaces in a glovebox filled with N2. The BNNTs with template were nitrided at different temperatures 1300-1700 °C in NH3. The BNNTs of 200-300 nm wide×60 μm long, and 70-80 nm wide×40 μm long were finally collected after removal of the template by etching of with 40 wt% NaOH solution. The fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) results confirmed the formation of BN from BH3NH3. Ordered arrays of BNNTs were observed by scanning electron microscopy (SEM), and the microstructure of these BNNTs was investigated by transmission electron microscopy (TEM). It was found that the diameters of the BNNTs can be easily controlled by using templates with different pore sizes. The wall thickness of the nanotubes was increased by increasing the sublimation time or the amount of the starting BH 3NH3. The crystallinity of BNNTs was improved at higher temperatures (1700 °C) in NH3.

本文言語English
ホスト出版物のタイトルCarbon Nanotubes and Related Low-Dimensional Materials
出版社Materials Research Society
ページ132-137
ページ数6
ISBN(印刷版)9781605608679
DOI
出版ステータスPublished - 2008
外部発表はい
イベント2008 MRS Spring Meeting - San Francisco, CA, United States
継続期間: 2008 3 242008 3 28

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1081
ISSN(印刷版)0272-9172

Conference

Conference2008 MRS Spring Meeting
国/地域United States
CitySan Francisco, CA
Period08/3/2408/3/28

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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