Continuous production of aligned carbon nanotubes: a step closer to commercial realization

Citation
R. Andrews et al., Continuous production of aligned carbon nanotubes: a step closer to commercial realization, CHEM P LETT, 303(5-6), 1999, pp. 467-474
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
0009-2614 → ACNP
Volume
303
Issue
5-6
Year of publication
1999
Pages
467 - 474
Database
ISI
SICI code
0009-2614(19990416)303:5-6<467:CPOACN>2.0.ZU;2-W
Abstract
High-purity aligned multi-walled carbon nanotubes (MWNTs) were synthesized through the catalytic decomposition of a ferrocene-xylene mixture at simila r to 675 degrees C in a quartz tube reactor and over quartz substrates, wit h a conversion of similar to 25% of the total hydrocarbon feedstock. Under the experimental conditions used, scanning electron microscope images revea l that the MWNT array grows perpendicular to the quartz substrates at an av erage growth rate of similar to 25 mu m/h. A process of this nature which d oes not require preformed substrates, and which operates at atmospheric pre ssure and moderate temperatures, could be scaled up for continuous or semi- continuous production of MWNTs. (C) 1999 Elsevier Science B.V. All rights r eserved.