Highly ordered boron nitride nanotube arrays with controllable texture from ammonia borane by template-aided vapor-phase pyrolysis

Yuting Wang, Yasunori Yamamoto, Hajime Kiyono, Shiro Shimada

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

An efficient approach for the preparation of good-quality boron nitride nanotubes (BNNTs) is developed. BNNTs with specific texture were prepared from ammonia borane (BH 3 NH 3) by vapor-phase pyrolysis with the aid of a template in two independent temperature-controlled furnaces. Two kinds of BNNTs, 200-300nm wide 60m long and 70-80nm wide 40m long, were produced after removal of the templates. The as-produced BNNTs were heated at different temperatures in the range of 1300-1700 C °in NH 3. FT-IR and XPS results confirmed the formation of BN from BH 3 NH 3. Ordered arrays of BNNTs without cracks on the surface were seen using microstructural observations. The diameter and length of the BNNTs are controlled using templates with different pore sizes and thickness. The wall thickness of the nanotubes was increased by increasing the number of deposition cycles. The crystallinity of the BNNTs was improved by heating at a high temperature (1700 C) in NH3.

Original languageEnglish
Article number606283
JournalJournal of Nanomaterials
Volume2008
Issue number1
DOIs
Publication statusPublished - 2008
Externally publishedYes

Fingerprint

Boranes
Boron nitride
Ammonia
Nanotubes
Pyrolysis
Textures
Vapors
boron nitride
Temperature
Pore size
Furnaces
X ray photoelectron spectroscopy
Cracks
Heating

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Highly ordered boron nitride nanotube arrays with controllable texture from ammonia borane by template-aided vapor-phase pyrolysis. / Wang, Yuting; Yamamoto, Yasunori; Kiyono, Hajime; Shimada, Shiro.

In: Journal of Nanomaterials, Vol. 2008, No. 1, 606283, 2008.

Research output: Contribution to journalArticle

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