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, DOI https://doi.org/10.1016/j.materresbull.2017.10.031.
Full text not available from this repository.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 |
|---|---|
| Funders: | Start up Research Grant (SRGP) from Higher Education Commission of Pakistan under project number 1400, University of Malaya , 50603 Kuala Lumpur Malaysia, Project Number: RG375-15AFR |
| 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 > Department of Geology Faculty of Science > Department 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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