The morphology of pyrolytic carbon nanotubes with a small number of walls

E. G. Rakov, D. A. Grishin, Yu V. Gavrilov, E. V. Rakova, A. G. Nasibulin, Kh Dzhian, E. I. Kauppinen

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

A mixture of carbon nanotubes with one to four walls and nanofibers was prepared by catalytic pyrolysis of CH4. The structure and morphology of the products were studied by usual and high-resolution transmission electron microscopy in combination with Raman spectroscopy, X-ray diffraction, and derivatography. The outside diameter of double-wall nanotubes changed from 1.8 to 6.7 nm, and that of triple- and quadruple-walls nanotubes, from 2.6 to 6.2 and from 4.0 to 7.7 nm, respectively. Double-, triple-, and quadruple-layer nanotubes had conic caps. A scheme of the formation of nanotubes was suggested.

Original languageEnglish
Pages (from-to)1966-1971
Number of pages6
JournalRussian Journal of Physical Chemistry A
Volume78
Issue number12
Publication statusPublished - Dec 2004
Externally publishedYes

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