The growth of carbon nanotubes on large areas of silicon substrate using commercial iron oxide nanoparticles as a catalyst

A new approach to chemical vapour deposition (CVD) growth of carbon nanotubes (CNTs) using commercial magnetite nanoparticles, avoiding its in situ synthesis, is reported. Commercial magnetite nanoparticles were used as catalyst material to growth multiwalled carbon nanotubes by chemical vapour depo...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2010-10, Vol.64 (20), p.2188-2190
Main Authors: Felisberto, Marcos, Sacco, Leandro, Mondragon, Iñaki, Rubiolo, Gerardo H., Candal, Roberto J., Goyanes, Silvia
Format: Article
Language:English
Subjects:
Arrays
Carbon nanotubes
Catalysts
Chemical vapor deposition
Chemical vapour deposition
Commercial nanoparticles
Iron oxide
Nanocomposites
Nanomaterials
Nanoparticles
Nanostructure
Silicon substrates
Synthesis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new approach to chemical vapour deposition (CVD) growth of carbon nanotubes (CNTs) using commercial magnetite nanoparticles, avoiding its in situ synthesis, is reported. Commercial magnetite nanoparticles were used as catalyst material to growth multiwalled carbon nanotubes by chemical vapour deposition onto a silicon substrate of several square centimeters in area. It is shown that the application of an alternating electric field during the deposition of catalytical nanoparticles is an effective technique to avoid their agglomeration allowing nanotube growth. Scanning electron microscopy showed that the nanotubes grow perpendicularly to the substrate and formed an aligned nanotubes array. The array density can be controlled by modifying the deposited nanoparticle concentration.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2010.07.016