Syntheses and growth mechanisms of 3C-SiC nanostructures from carbon and silicon powders

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • J. Zhu
  • X. Xiong
  • H. T. Chen
  • X. L. Wu
  • W. C. Zhang

Detail(s)

Original languageEnglish
Pages (from-to)6648-6654
Journal / PublicationJournal of Nanoscience and Nanotechnology
Volume9
Issue number11
Publication statusPublished - Nov 2009

Abstract

Cubic silicon carbide (3C-SiC) nanostructures such as needle-and Y-shaped nanowhiskers, smooth and pagoda-shaped nanorods are synthesized on a large scale from activated carbon and silicon powders at 1250 °C under atmospheric pressure. The use of ball-milled silicon powders results in the formation of nanowires and nanowhiskers, whereas non-milled silicon powders lead to nanorods together with unreacted silicon powders. Residual oxygen in the growth chamber initiates the carburization reactions which can proceed without further oxygen consumption. The size and morphology of the as-synthesized 3C-SiC nanostructures are observed to be related to the size and morphology of the starting silicon particles. An oxygen-assisted gas-solid model is proposed to explain the observed nanostructures. Copyright © 2009 American Scientific Publishers.

Research Area(s)

  • 1d nanostructures, Cubic silicon carbide, Growth mechanisms, Synthesis

Citation Format(s)

Syntheses and growth mechanisms of 3C-SiC nanostructures from carbon and silicon powders. / Zhu, J.; Xiong, X.; Chen, H. T.; Wu, X. L.; Zhang, W. C.; Chu, Paul K.

In: Journal of Nanoscience and Nanotechnology, Vol. 9, No. 11, 11.2009, p. 6648-6654.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review