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|Type:||Artigo de evento|
|Title:||Study Of Carbon Nanotubes Growth By Atmospheric Pressure Chemical Vapor Deposition|
|Abstract:||Multi-wall carbon nanotubes (MWCNTs) growth was performed by thermal chemical vapor deposition using a tubular furnace and methane as carbon feedstock gas. Different metals such as Ni and Fe were employed as catalysts supported onto a SiO 2/Si substrate. The influence of H 2:CH 4 ratio, NH 3 gas, and temperature on the CNTs growth was also investigated. SEM images showed that nickel particles larger than 100 nm have a tendency to form CNTs with metal on both ends suggesting a growth mechanism composed by both tip and base growth models. CNTs grown using Fe films showed a similar behavior.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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