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dc.contributor.author
Ramirez Galilea, Adrian
dc.contributor.author
Royo, Carlos
dc.contributor.author
Latorre, Nieves
dc.contributor.author
Mallada, Reyes
dc.contributor.author
Tiggelaar, Roald M.
dc.contributor.author
Monzón, Antonio
dc.date.accessioned
2022-07-14T06:18:04Z
dc.date.available
2022-07-13T11:41:26Z
dc.date.available
2022-07-14T06:18:04Z
dc.date.issued
2014-12
dc.identifier.issn
2053-1591
dc.identifier.other
10.1088/2053-1591/1/4/045604
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/557866
dc.description.abstract
The interaction between the main operational variables during the growth of vertically aligned multiwalled carbon nanotubes (VA-MWCNTs) by catalytic chemical vapor deposition is studied. In this contribution, we report the influence of the carbon source (i.e. acetylene, ethylene and propylene), the reaction/activation temperature, the rate of heating, the reaction time, the metal loading, and the metallic nanoparticle size and distribution on the growth and alignment of carbon nanotubes. Fe/Al thin films deposited onto silicon samples by electron-beam evaporation are used as catalyst. A phenomenological growth mechanism is proposed to explain the interaction between these multiple factors. Three different outcomes of the synthesis process are found: i) formation of forests of non-aligned, randomly oriented multi-walled carbon nanotubes, ii) growth of vertically aligned tubes with a thin and homogeneous carbonaceous layer on the top, and iii) formation of vertically aligned carbon nanotubes. This carbonaceous layer (ii) has not been reported before. The main requirements to promote vertically aligned carbon nanotube growth are determined.
en_US
dc.language.iso
en
en_US
dc.publisher
IOP Publishing
en_US
dc.title
Unraveling the growth of vertically aligned multi-walled carbon nanotubes by chemical vapor deposition
en_US
dc.type
Journal Article
dc.date.published
2014-11-05
ethz.journal.title
Materials Research Express
ethz.journal.volume
1
en_US
ethz.journal.issue
4
en_US
ethz.journal.abbreviated
Mater. Res. Express
ethz.pages.start
045604
en_US
ethz.size
15 p.
en_US
ethz.publication.place
Bristol
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02293 - Catalysis Hub / Catalysis Hub
en_US
ethz.date.deposited
2022-07-13T11:41:31Z
ethz.source
BATCH
ethz.eth
no
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2022-07-14T06:18:10Z
ethz.rosetta.lastUpdated
2022-07-14T06:18:10Z
ethz.rosetta.versionExported
true
ethz.COinS
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