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Title: Synthesis and characterization of silicon carbide, silicon oxynitride and silicon nitride nanowires
Authors: Gundiah, Gautam
Madhav, G V
Govindaraj, A
Seikh, Md Motin
Rao, C N R
Keywords: Beta-Sic Nanorods
Issue Date: 2002
Publisher: Royal Society of Chemistry
Citation: Journal Of Materials Chemistry 12(5), 1606-1611 (2002)
Abstract: Several methods have been employed to synthesize SiC nanowires. The methods include heating silica gel or fumed silica with activated carbon in a reducing atmosphere, the carbon particles being produced in situ in one of the methods. The simplest method to obtain beta-SiC nanowires involves heating silica gel with activated carbon at 1360 degreesC in H-2 or NH3. The same reaction, if carried out in the presence of catalytic iron particles, at 1200 degreesC gives alpha-Si3N4 nanowires and Si2N2O nanowires at 1100 degreesC. Another method to obtain Si3N4 nanowires is to heat multi-walled carbon nanotubes with silica gel at 1360 degreesC in an atmosphere of NH3. In the presence of catalytic Fe particles, this method yields alpha-Si3N4 nanowires in pure form.
Other Identifiers: 0959-9428
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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