Production of differently shaped multi-wall carbon nanotubes using various cobalt supported catalysts

Patricia Piedigrosso, Z. Kónya, Jean François Colomer, Antonio Fonseca, Georges Van Tendeloo, Janos B. Nagy

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

Catalytic synthesis and transmission electron microscopy (TEM) of multi- wall carbon nanotubes are presented. Silica, zeolite and alumina supported cobalt catalysts were prepared by different methods (impregnation and ion- adsorption precipitation) and were used to produce nanotubes. The synthesis was carried out in a fixed bed flow reactor and the process was optimized in order to produce carbon nanotubes on a gram scale. The influence of various parameters such as the method of catalyst preparation, the nature of the support, cobalt concentration and reaction conditions on the formation of nanotubes was investigated. The carbon deposits were measured and the quality of nanotubes was determined by low and high resolution TEM. Multi-wall straight and coiled nanotubes were found to be fairly regular with an average inner (outer) diameter of 4-7 nm (8-23 nm) and with lengths up to 0.1 mm.

Original languageEnglish
Pages (from-to)163-170
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume2
Issue number1
DOIs
Publication statusPublished - Jan 1 2000

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Carbon Nanotubes
Cobalt
Catalyst supports
Nanotubes
nanotubes
cobalt
carbon nanotubes
catalysts
Zeolites
transmission electron microscopy
Catalysts
Aluminum Oxide
synthesis
High resolution transmission electron microscopy
Impregnation
Silicon Dioxide
beds
Carbon
Deposits
aluminum oxides

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

Production of differently shaped multi-wall carbon nanotubes using various cobalt supported catalysts. / Piedigrosso, Patricia; Kónya, Z.; Colomer, Jean François; Fonseca, Antonio; Van Tendeloo, Georges; Nagy, Janos B.

In: Physical Chemistry Chemical Physics, Vol. 2, No. 1, 01.01.2000, p. 163-170.

Research output: Contribution to journalArticle

Piedigrosso, Patricia ; Kónya, Z. ; Colomer, Jean François ; Fonseca, Antonio ; Van Tendeloo, Georges ; Nagy, Janos B. / Production of differently shaped multi-wall carbon nanotubes using various cobalt supported catalysts. In: Physical Chemistry Chemical Physics. 2000 ; Vol. 2, No. 1. pp. 163-170.
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