Crystalline silica nanowires

Deepak, F. L. ; Gundiah, Gautam ; Motin Seikh, Md. ; Govindaraj, A. ; Rao, C. N. R. (2004) Crystalline silica nanowires Journal of Materials Research, 19 (8). pp. 2216-2220. ISSN 0884-2914

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α-Cristobalite nanowires of 50-100 nm diameter with lengths of several microns have been synthesized for the first time by the solid-state reaction of fumed silica and activated charcoal. The nanowires have been characterized by X-ray diffraction, electron microscopy, photoluminescence, and Raman scattering. The nanowires are single crystalline as revealed by high-resolution electron microscope images. The crystalline nanowires are clad by an amorphous silica sheath when the carbon to fumed silica ratio in the starting mixture is small. Use of hydrogen along with Ar helps to eliminate the amorphous sheath.

Item Type:Article
Source:Copyright of this article belongs to Cambridge University Press.
Keywords:Nanofiber; Transmission Electron Microscopy (TEM)
ID Code:44794
Deposited On:23 Jun 2011 05:54
Last Modified:23 Jun 2011 05:54

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