Selective self-assembly of single walled carbon nanotubes in long steel tubing for chemical separations

Document Type

Article

Publication Date

7-14-2006

Abstract

This paper reports the scaled-up self-assembly of single walled carbon nanotubes (SWCNTs) on the inside wall of a long silica-lined steel capillary tubing for applications such as chemical processing and separations. A unique one step self-assembly process has been developed and the effect of the substrate on the morphology of the CVD growth has been studied. With the aerosol spray of an ethanolic solution consisting of dissolved cobalt and molybdenum as metal catalysts and co-catalysts respectively, the catalyst was generated and activated in situ inside the interior of the tubing, in parallel with the synthesis of SWCNTs, thus eliminating the need to coat the substrate with the catalyst prior to the synthesis of the nanotubes. The presence of a silica layer on the steel tubing was found to be critical for the formation of SWCNTs. Gas chromatographic separation of aromatic compounds is demonstrated on the capillary tube. © The Royal Society of Chemistry 2006.

Identifier

33745802949 (Scopus)

Publication Title

Journal of Materials Chemistry

External Full Text Location

https://doi.org/10.1039/b605784e

e-ISSN

13645501

ISSN

09599428

First Page

2890

Last Page

2895

Issue

28

Volume

16

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