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Title:Boron‑rich boron carbide from soot : a low-temperature green synthesis approach
Authors:Swapna, Mohanachandran Nair Sindhu (Author)
Saritha Devi, H. V. (Author)
Sankararaman, Sankaranarayana Iyer (Author)
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Work type:Unknown ()
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Boron carbide is a promising super-hard semiconducting material for refractory applications ranging from the nuclear industry to spacecraft. The present work is the frst report of not only turning futile soot, containing carbon allotropes in varying composition, into boron-rich boron carbide (BC), but also developing it by a low-cost, low-temperature, and green synthesis method. The BC synthesised from gingelly oil soot is subjected to structural, morphological, and optical characterisations. The feld emission scanning electron microscope shows beautiful fower-like morphology, and the thermogravimetric analysis reveals the high-temperature stability of the sample synthesised. The Tauc plot of the sample indicates a 2.38 eV direct bandgap. The formation of BC and boron-rich carbide evidenced by X-ray difraction studies is confrmed through Raman and Fourier transform infrared spectroscopic signatures of B–C and C–B–C bonds. The fuorescence, power spectrum, and CIE analyses carried out suggest the blue light emission for excitation at 350 nm
Keywords:boron carbide, soot, carbon nanoparticle, refractory, allotropes, green synthesis
Year of publishing:2020
Number of pages:str. 651–657
Numbering:iss. 6, Vol. 57
COBISS_ID:113353475 Link is opened in a new window
ISSN on article:1229-7801
DOI:10.1007/s43207-020-00066-5 Link is opened in a new window
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Title:Han'gug se'la'mig haghoeji
Publisher:Han'gug se'la'mig haghoe
COBISS.SI-ID:18848551 New window