Mechanism for the growth of multiwalled carbon-nanotubes from carbon black

D. B. Buchholz, S. P. Doherty, Robert P. H. Chang

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Multiwalled carbon-nanotubes have been grown from carbon black by solid-state transformation at the anode of a modified high-temperature arc-furnace without a catalyst. A mechanism for the solid-state transformation of carbon black into nanotubes is proposed. The migration of pentagon and heptagon defects present in carbon black to regions of high tensile-stress is key to the growth mechanism. The growth process can be broken into two stages. The basic mechanism for both stages is the same; only the source of the tensile stress that drives the nanotube growth differs. In the initial stage of growth the necks between carbon-black particles are lengthened into short nanotubes by thermal forces. Electrostatic forces present in the plasma of the high-temperature arc-furnace drive the subsequent extension of the short nanotubes to multiple-micron lengths.

Original languageEnglish
Pages (from-to)1625-1634
Number of pages10
JournalCarbon
Volume41
Issue number8
DOIs
Publication statusPublished - 2003

Fingerprint

Soot
Multiwalled carbon nanotubes (MWCN)
Carbon black
Nanotubes
Tensile stress
Furnaces
Electrostatic force
Anodes
Plasmas
Temperature
Defects
Catalysts

Keywords

  • A. Carbon black, Carbon nanotubes
  • B. Arc discharge

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Mechanism for the growth of multiwalled carbon-nanotubes from carbon black. / Buchholz, D. B.; Doherty, S. P.; Chang, Robert P. H.

In: Carbon, Vol. 41, No. 8, 2003, p. 1625-1634.

Research output: Contribution to journalArticle

Buchholz, D. B. ; Doherty, S. P. ; Chang, Robert P. H. / Mechanism for the growth of multiwalled carbon-nanotubes from carbon black. In: Carbon. 2003 ; Vol. 41, No. 8. pp. 1625-1634.
@article{651e99dbb51042c09ce3dd8d89c9e062,
title = "Mechanism for the growth of multiwalled carbon-nanotubes from carbon black",
abstract = "Multiwalled carbon-nanotubes have been grown from carbon black by solid-state transformation at the anode of a modified high-temperature arc-furnace without a catalyst. A mechanism for the solid-state transformation of carbon black into nanotubes is proposed. The migration of pentagon and heptagon defects present in carbon black to regions of high tensile-stress is key to the growth mechanism. The growth process can be broken into two stages. The basic mechanism for both stages is the same; only the source of the tensile stress that drives the nanotube growth differs. In the initial stage of growth the necks between carbon-black particles are lengthened into short nanotubes by thermal forces. Electrostatic forces present in the plasma of the high-temperature arc-furnace drive the subsequent extension of the short nanotubes to multiple-micron lengths.",
keywords = "A. Carbon black, Carbon nanotubes, B. Arc discharge",
author = "Buchholz, {D. B.} and Doherty, {S. P.} and Chang, {Robert P. H.}",
year = "2003",
doi = "10.1016/S0008-6223(03)00110-6",
language = "English",
volume = "41",
pages = "1625--1634",
journal = "Carbon",
issn = "0008-6223",
publisher = "Elsevier Limited",
number = "8",

}

TY - JOUR

T1 - Mechanism for the growth of multiwalled carbon-nanotubes from carbon black

AU - Buchholz, D. B.

AU - Doherty, S. P.

AU - Chang, Robert P. H.

PY - 2003

Y1 - 2003

N2 - Multiwalled carbon-nanotubes have been grown from carbon black by solid-state transformation at the anode of a modified high-temperature arc-furnace without a catalyst. A mechanism for the solid-state transformation of carbon black into nanotubes is proposed. The migration of pentagon and heptagon defects present in carbon black to regions of high tensile-stress is key to the growth mechanism. The growth process can be broken into two stages. The basic mechanism for both stages is the same; only the source of the tensile stress that drives the nanotube growth differs. In the initial stage of growth the necks between carbon-black particles are lengthened into short nanotubes by thermal forces. Electrostatic forces present in the plasma of the high-temperature arc-furnace drive the subsequent extension of the short nanotubes to multiple-micron lengths.

AB - Multiwalled carbon-nanotubes have been grown from carbon black by solid-state transformation at the anode of a modified high-temperature arc-furnace without a catalyst. A mechanism for the solid-state transformation of carbon black into nanotubes is proposed. The migration of pentagon and heptagon defects present in carbon black to regions of high tensile-stress is key to the growth mechanism. The growth process can be broken into two stages. The basic mechanism for both stages is the same; only the source of the tensile stress that drives the nanotube growth differs. In the initial stage of growth the necks between carbon-black particles are lengthened into short nanotubes by thermal forces. Electrostatic forces present in the plasma of the high-temperature arc-furnace drive the subsequent extension of the short nanotubes to multiple-micron lengths.

KW - A. Carbon black, Carbon nanotubes

KW - B. Arc discharge

UR - http://www.scopus.com/inward/record.url?scp=0037603127&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037603127&partnerID=8YFLogxK

U2 - 10.1016/S0008-6223(03)00110-6

DO - 10.1016/S0008-6223(03)00110-6

M3 - Article

VL - 41

SP - 1625

EP - 1634

JO - Carbon

JF - Carbon

SN - 0008-6223

IS - 8

ER -