Synthesis of h-BN by the Combustion of BKNO3Octogen Mixture under Nitrogen Atmosphere
Joint Authors
Hu, Song-qi
Wang, Yin
Liu, Lin-lin
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-22
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Hexagonal boron nitride (h-BN) powders were fabricated by the combustion synthesis with B/KNO3/HMX (octogen) mixtures as reactants.
X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were adopted to investigate the phase composition and the chemical composition of the products, respectively.
The morphology and resistance to oxidation were studied by scanning electron microscopy (SEM) and thermogravimetry (TGA), respectively.
The characterization results showed that the h-BN which was produced through this method has high purity and exhibits excellent resistance to oxidation.
The purity of h-BN is improved with the increasing content of HMX in reactants with boron carbide (B4C) and boron oxide (B2O3) as main impurity, but conversely, the yields are obviously decreased.
Taking the comprehensive consideration of the purity and the yields together, the optimal molar ratio of B/KNO3/HMX is 10 : 1 : 4.
In addition, the experimental results indicated that the crystalline grain size grows with the increasing content of HMX.
The method explored in this study does not need expensive processing facilities and equipment, which is a preferable approach for the laboratory to prepare h-BN of high purity.
American Psychological Association (APA)
Hu, Song-qi& Wang, Yin& Liu, Lin-lin. 2019. Synthesis of h-BN by the Combustion of BKNO3Octogen Mixture under Nitrogen Atmosphere. Journal of Chemistry،Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1171919
Modern Language Association (MLA)
Hu, Song-qi…[et al.]. Synthesis of h-BN by the Combustion of BKNO3Octogen Mixture under Nitrogen Atmosphere. Journal of Chemistry No. 2019 (2019), pp.1-6.
https://search.emarefa.net/detail/BIM-1171919
American Medical Association (AMA)
Hu, Song-qi& Wang, Yin& Liu, Lin-lin. Synthesis of h-BN by the Combustion of BKNO3Octogen Mixture under Nitrogen Atmosphere. Journal of Chemistry. 2019. Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1171919
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171919