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

Yuting Wang, Shiro Shmada, Hajime Kiyono, Yasunori Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


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.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Number of pages6
Publication statusPublished - 2008
Externally publishedYes
Event2008 MRS Spring Meeting - San Francisco, CA
Duration: 2008 Mar 242008 Mar 28


Other2008 MRS Spring Meeting
CitySan Francisco, CA


ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Wang, Y., Shmada, S., Kiyono, H., & Yamamoto, Y. (2008). Preparation and characterization of BN nanotubes with controllable sizes by templateaided synthesis. In Materials Research Society Symposium Proceedings (Vol. 1081, pp. 132-137)