Preparation of Flower-Like Silica Microstructures

Abstract:

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Novel flower-like silica microstructures have been synthesized through heating silicon, silicon monoxide and active carbon mixed powders under an H2/Ar (3%) atmosphere at 1050°C without assistance of any metal catalyst. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM) and energy dispersive x-ray spectrometer (EDS) analyses reveal that the wires are amorphous and consist only of silicon oxide, generated from the reaction of CO with SiC. A possible growth model based on both of vapor-solid (VS) and the Oxide-assisted growth (OAG) mechanism has been supposed here to explain this phenomenon.

Info:

Periodical:

Advanced Materials Research (Volumes 123-125)

Edited by:

Joong Hee Lee

Pages:

1295-1298

DOI:

10.4028/www.scientific.net/AMR.123-125.1295

Citation:

W. Q. Wang and Z. S. Peng, "Preparation of Flower-Like Silica Microstructures", Advanced Materials Research, Vols. 123-125, pp. 1295-1298, 2010

Online since:

August 2010

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Price:

$35.00

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