Magnesium diboride (MgB2): An effective and novel precursor for the synthesis of vertically aligned BNNTs

Ahmad, Pervaiz and Khandaker, Mayeen Uddin and Muhammad, Nawshad and Rehman, Fida and Khan, Ghulamullah and Khan, Amir Sada and Ullah, Zahoor and Rehman, Muhammad Abdur and Ahmed, Sohail and Gulzar, Mubashar and Din, Israf Ud and Ahmed, Syed Muzamil and Ali, Hazrat and Numan, Arshid (2018) Magnesium diboride (MgB2): An effective and novel precursor for the synthesis of vertically aligned BNNTs. Materials Research Bulletin, 98. pp. 235-239. ISSN 0025-5408

Full text not available from this repository.
Official URL: https://doi.org/10.1016/j.materresbull.2017.10.031

Abstract

Vertically aligned Boron nitride nanotubes (BNNTs) have exceptional electrical, mechanical and thermal properties suitable for its potential applications without any further purification. However, the synthesis of aligned BNNTs via previously reported techniques is not only complicated, lengthy and misleading but also result in useless impurities in the final product. Here, we report Magnesium diboride (MgB2) as an effective and novel precursor for the synthesis of vertically aligned BNNTs directly on SiO2 substrate at 1000 °C. Magnesium (Mg) from MgB2 in partially melted form diffuses on SiO2 substrate whereas the adsorbed Boron with Mg reacts with Nitrogen from decomposed ammonia and synthesized vertically aligned BNNTs. The morphology, alignment, structure and compositions of the as-synthesized BNNTs are studied via field emission scanning electron microscope, high resolution transmission electron microscope, energy dispersive x-ray spectroscopy, x-ray diffraction, Raman spectroscopy and Fourier transform infrared spectroscopy.

Item Type: Article
Uncontrolled Keywords: MgB2; Precursor; Synthesis; Vertically aligned; BNNTs
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QD Chemistry
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Faculty of Science > Dept of Geology
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 04 Oct 2019 02:49
Last Modified: 04 Oct 2019 02:49
URI: http://eprints.um.edu.my/id/eprint/22631

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