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Title: Nanotubes, nanobelts, nanowires, and nanorods of silicon carbide from the wheat husks

Nanotubes, nanowires, nanobelts, and nanorods of SiC were synthesized from the thermal treatment of wheat husks at temperatures in excess of 1450 °C. From the analysis based on x-ray diffraction, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy, it has been found that the processed samples of wheat husk consisted of 2H and 3C polytypes of SiC exhibiting the nanostructure shapes. These nanostructures of silicon carbide formed from wheat husks are of technological importance for designing advance composites, applications in biotechnology, and electro-optics. The thermodynamics of the formation of SiC is discussed in terms of the rapid solid state reaction between hydrocarbons and silica on the molecular scale, which is inherently present in the wheat husks.
Authors:
; ; ; ; ;  [1]
  1. Materials Science and Component Technology Directorate, Naval Research Laboratory, Washington, District of Columbia 20375 (United States)
Publication Date:
OSTI Identifier:
22489471
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 10; Other Information: (c) 2015 U.S. Government; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; BIOTECHNOLOGY; NANOTUBES; NANOWIRES; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; SILICON CARBIDES; TRANSMISSION ELECTRON MICROSCOPY; WHEAT; X-RAY DIFFRACTION