Controlled growth of carbon nanotubes on graphite foil by chemical vapor deposition

Carbon nanotubes have been synthesized by chemical vapor deposition on graphite foil coated with stainless steel film as catalyst by magnetron sputtering. Annealing in hydrogen was used to convert the stainless steel film to the needed catalyst particles that have a different composition from the in...

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Bibliographic Details
Published inChemical physics letters Vol. 335; no. 3; pp. 141 - 149
Main Authors Li, W.Z, Wang, D.Z, Yang, S.X, Wen, J.G, Ren, Z.F
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 23.02.2001
Elsevier Science
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Nanoscale materials and structures: fabrication and characterization
Physics
Catalysts
Nanotubes
Experimental study
Carbon
Stainless steels
Thin films
CVD
Growth from vapor
Magnetrons
Cathode sputtering
Nonmetals
Chemical preparation
Size effect
SEM
TEM
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Summary:Carbon nanotubes have been synthesized by chemical vapor deposition on graphite foil coated with stainless steel film as catalyst by magnetron sputtering. Annealing in hydrogen was used to convert the stainless steel film to the needed catalyst particles that have a different composition from the initial stainless steel film due to phase segregation during annealing. The catalyst particle size increases with the increase of the initial stainless steel film thickness. The outer diameter of the carbon nanotubes increases dramatically with catalyst particle size, whereas the inner diameter increases slightly first then remains roughly constant at about 7 nm.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(01)00032-X