Synthesis and Characterization of Boron Carbide Nanobelts


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Boron carbide nanobelts have been synthesized successfully by carbothermal growth method. Boron oxide, activated carbon, gallium oxide and sodium chloride in the molar ratios of 1: 5: 0.03: 0.2 were used as raw materials. The width and thickness of the nanobelts range from 1 to 10 μm, and 80 to 150 nm respectively. The length is up to 50–200 μm. Diffraction peaks in the XRD pattern can be indexed to rhombohedral boron carbide with lattice parameters of a=5.616Å, c=12.067 Å. SAED pattern recorded along [ 010 ] zone axis shows (104 ) growth direction. A vapor–liquid–solid (VLS) growth process on the active catalyst surface is supposed to interpret the growth mechanism of as–synthesized nanobelts.



Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong




X. Q. An et al., "Synthesis and Characterization of Boron Carbide Nanobelts", Key Engineering Materials, Vols. 336-338, pp. 2166-2168, 2007

Online since:

April 2007




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