Ammonium-tungstate-promoted growth of boron nitride nanotubes

Nanotechnology
Songfeng EYagang Yao

Abstract

Ammonium tungstate ((NH4)10W12O41 · xH2O) is a kind of oxygen-containing ammonium salt. The following study proves that it can be successfully used as a metal oxide alternative to produce boron oxide (B2O2) by oxidizing boron (B) in a traditional boron oxide chemical vapor deposition (BOCVD) process. This special oxidant promotes the simplistic fabrication of boron nitride nanotubes (BNNTs) in a conventional horizontal tube furnace, an outcome which may have resulted from its strong oxidizability. The experimental results demonstrate that the mole ratio of B and (NH4)10W12O41 · xH2O is a key parameter in determining the formation, quality and quantity of BNNTs when stainless steel is employed as a catalyst. We also found that Mg(NO3)2 and MgO nanoparticles (NPs) can be used as catalysts to grow BNNTs with the same precursor. The BNNTs obtained from the Mg(NO3)2 catalyst were straighter than those obtained from the MgO NP catalyst. This could have been due to the different physical forms of the catalysts that were used.

References

Jun 17, 1996·Physical Review Letters·A LoiseauH Pascard
Jul 12, 2002·Chemical Communications : Chem Comm·Chengchun TangKeiji Kurashima
Mar 4, 2003·Chemical Communications : Chem Comm·E Borowiak-PalenJ Fink
Aug 18, 1995·Science·N G ChopraA Zettl
Dec 7, 2007·Journal of the American Chemical Society·Raul ArenalAnnick Loiseau
Feb 12, 2009·ACS Nano·Zhi-Gang ChenGao Qing Lu
May 4, 2010·The Journal of Physical Chemistry. B·Tung-Lin Li, Steve Lien-Chung Hsu
Jul 14, 2011·ACS Nano·Chunyi ZhiDmitri Golberg
May 4, 2012·Nanotechnology·Amir PakdelDmitri Golberg
Aug 3, 2012·Journal of Nanoscience and Nanotechnology·Jeghan Shrine Maria Nithya, Arumugam Pandurangan
Aug 24, 2017·Nanotechnology·B W LiK L Yao

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Citations

Jul 13, 2018·Nanoscale·Songfeng EYagang Yao
Jun 12, 2019·Physical Chemistry Chemical Physics : PCCP·Alexander KhrabryYevgeny Raitses
Sep 23, 2020·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Duo PanZhanhu Guo

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