The effect of carbon input on the morphology and attachment of carbon nanotubes grown directly from stainless steel

This work presents a simple, inexpensive and scalable method to grow multi-walled carbon nanotubes (CNTs), using chemical vapor deposition, directly from stainless steel 316mesh, without any pretreatment or the use of an external catalyst. A growth method is proposed based on the generation of parti...

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Bibliographic Details
Published in:Carbon (New York) 2013-11, Vol.63, p.348-357
Main Authors: Hordy, Nathan, Mendoza-Gonzalez, Norma-Yadira, Coulombe, Sylvain, Meunier, Jean-Luc
Format: Article
Language:English
Subjects:
Acetylene
Attachment
Austenitic stainless steels
Carbon
Chromium
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Migration
Multi wall carbon nanotubes
Nanoscale materials and structures: fabrication and characterization
Nanotubes
Physics
Stainless steels
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Summary:This work presents a simple, inexpensive and scalable method to grow multi-walled carbon nanotubes (CNTs), using chemical vapor deposition, directly from stainless steel 316mesh, without any pretreatment or the use of an external catalyst. A growth method is proposed based on the generation of particle-like growth sites, which are created as a result of chromium migration to the surface during heating. Acetylene concentrations were modeled within the reactor at various flow conditions and compared to experimental results to show that carbon input can be used as a way of controlling the diameter of the CNTs. All CNTs produced were strongly rooted to the SS substrate, however the larger diameter CNTs were more difficult to break and remove by means of ultrasonication.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2013.06.089