The dependence of the oriented growth of carbon filaments on the intensity of a magnetic field

Vilas Ganpat Pol, Swati Vilas Pol, Jose M. Calderon-Moreno, Mun Gyu Sung, Shigeo Asai, Aharon Gedanken

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12 Scopus citations

Abstract

Carbon filaments have been obtained by the thermal decomposition of mesitylene in the presence of a strong magnetic field. The shape dependence of the pristine carbon filaments on increasing the magnetic field is demonstrated. The proposed mechanism for filament growth involves the formation of a colloid-like system during dehydrogenation and dissociation of mesitylene. The imposed orientation of graphitic clusters (basic structural units) in the strong magnetic-field forces those located at the curved surfaces forming the tips of the filaments to expose their reactive edges, facilitating the observed preferential growth of filaments.

Original languageEnglish
Pages (from-to)1913-1918
Number of pages6
JournalCarbon
Volume44
Issue number10
DOIs
StatePublished - Aug 2006

Bibliographical note

Funding Information:
V.G. Pol and S.V. Pol thanks Bar-Ilan University, Israel for the financial assistance. J. Calderon-Moreno acknowledges financial support from the MEC project MAT04-01214-323, and Generalitat de Catalunya grant SGR2005-00535.

Keywords

  • Carbon filaments
  • Microstructure
  • Scanning electron microscopy

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