Metal-induced graphitization by methane pyrolysis

Its application as a catalyst for single-walled carbon nanotubes

Young Joon Yoon, Hong Koo Baik

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper investigated the catalytic activity of cobalt and its alloy with molybdenum for the growth of single-walled carbon nanotubes (SWCNT) using the CVD process. The phase transformation of the Co-Mo catalyst was monitored during high temperature methane pyrolysis to determine the catalytic activity of each element for graphitization, and the results can be applied to synthesize SWCNT with high efficiency. Structural changes through the formation of the intermetallic compound Co3Mo and decomposition during the CVD reaction generated the internal instability of the metal catalyst, and this played a crucial role in the nucleation of a graphitic structure and the promotion of SWCNT growth.

Original languageEnglish
Pages (from-to)219-222
Number of pages4
JournalJournal of Alloys and Compounds
Volume493
Issue number1-2
DOIs
Publication statusPublished - 2010 Mar 18

Fingerprint

Graphitization
Methane
Single-walled carbon nanotubes (SWCN)
Pyrolysis
Metals
Catalysts
Chemical vapor deposition
Catalyst activity
Cobalt alloys
Molybdenum
Cobalt
Intermetallics
Nucleation
Phase transitions
Decomposition
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

Cite this

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abstract = "This paper investigated the catalytic activity of cobalt and its alloy with molybdenum for the growth of single-walled carbon nanotubes (SWCNT) using the CVD process. The phase transformation of the Co-Mo catalyst was monitored during high temperature methane pyrolysis to determine the catalytic activity of each element for graphitization, and the results can be applied to synthesize SWCNT with high efficiency. Structural changes through the formation of the intermetallic compound Co3Mo and decomposition during the CVD reaction generated the internal instability of the metal catalyst, and this played a crucial role in the nucleation of a graphitic structure and the promotion of SWCNT growth.",
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Metal-induced graphitization by methane pyrolysis : Its application as a catalyst for single-walled carbon nanotubes. / Yoon, Young Joon; Baik, Hong Koo.

In: Journal of Alloys and Compounds, Vol. 493, No. 1-2, 18.03.2010, p. 219-222.

Research output: Contribution to journalArticle

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