Please use this identifier to cite or link to this item: https://doi.org/10.1166/jnn.2005.031
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dc.titleHighly ordered carbon nanotubes based on porous aluminum oxide: Fabrication and mechanism
dc.contributor.authorPan, H.
dc.contributor.authorGao, H.
dc.contributor.authorLim, S.H.
dc.contributor.authorFeng, Y.P.
dc.contributor.authorLin, J.
dc.date.accessioned2014-10-16T09:27:47Z
dc.date.available2014-10-16T09:27:47Z
dc.date.issued2005
dc.identifier.citationPan, H., Gao, H., Lim, S.H., Feng, Y.P., Lin, J. (2005). Highly ordered carbon nanotubes based on porous aluminum oxide: Fabrication and mechanism. Journal of Nanoscience and Nanotechnology 5 (2) : 277-281. ScholarBank@NUS Repository. https://doi.org/10.1166/jnn.2005.031
dc.identifier.issn15334880
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/96806
dc.description.abstractHighly ordered carbon nanotubes (CNTs) are wildly pursued due to their unique properties. Anodic aluminum oxide (AAO) exhibits great possibility for this purpose. Here, CNTs based on AAO template were produced using acetylene or ethylene as the hydrocarbon sources with or without the presence of Co catalysts. CNTs grown on the Co-embedded AAO samples were normally confined within the nanopores of the AAO template. It was found that C 2H 4 normally requires 100°C higher pyrolysis temperature than C 2H 2 under otherwise identical conditions. The pyrolysis temperature is greatly reduced with the presence of Co catalysts. CNTs can grow out of the nanopores, if Co particles are present at the bottom of the nanopores and if the nanopores are short in length or large in diameter. The graphitization of AAO template grown CNTs was studied by Raman spectroscopy. The CNTs produced from ethylene are generally better in graphitization than those from acetylene, and the CNTs grown with the presence of Co catalysts deposited at the bottom of nanopores are better than those without Co catalysts or with Co catalysts coated on the entire inner wall of nanopores. The growth temperature is found not to play a critical role in graphitization. Copyright © 2005 American Scientific Publishers All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1166/jnn.2005.031
dc.sourceScopus
dc.subjectAAO Template
dc.subjectC 2H 4 Pyrolysis
dc.subjectCarbon Nanotubes
dc.subjectCo Catalyst
dc.subjectGraphitization
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1166/jnn.2005.031
dc.description.sourcetitleJournal of Nanoscience and Nanotechnology
dc.description.volume5
dc.description.issue2
dc.description.page277-281
dc.identifier.isiut000227786100016
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