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dc.contributor.authorWei Wen, Liu
dc.contributor.authorTijjani Adam, Shuwa
dc.contributor.authorAzizan, Aziz, Assoc. Prof. Dr.
dc.contributor.authorAbdul Rahman, Mohamed, Prof. Dr.
dc.contributor.authorUda, Hashim, Prof. Dr.
dc.contributor.authorChai, Siang Piao
dc.date.accessioned2014-04-09T04:51:12Z
dc.date.available2014-04-09T04:51:12Z
dc.date.issued2014
dc.identifier.citationAdvanced Materials Research, vol.832, 2014, pages 62-67en_US
dc.identifier.issn1662-8985
dc.identifier.urihttp://dspace.unimap.edu.my:80/dspace/handle/123456789/33546
dc.descriptionLink to publisher's homepage at http://www.ttp.net/en_US
dc.description.abstractFe₃O₄ was used to synthesize narrow diameter of carbon nanotubes (CNTs). The effect of concentration of Fe₃O₄ on the diameters of carbon nanotubes (CNTs) synthesized by methane decomposition at 1000°C was investigated. We used conventional impregnation method to prepare Fe₃O₄/MgO catalysts. The results show that the concentration of Fe₃O₄ greatly affects the diameter distributions of produced CNTs. The CNTs formed by Fe₃O4/MgO catalysts, with the mole ratio set at 0.25:9.75 and 1:9 had diameter of 3.23 ± 1.71 and 49.04 ± 33.62nm, respectively, showing that a decrease in concentration of Fe₃O₄ yields smaller diameter and narrower diameter distribution. A growth model explaining tip-growth and base-growth mechanism is proposed for understanding formation of CNTs.en_US
dc.language.isoenen_US
dc.publisherTrans Tech Publicationsen_US
dc.subjectChemical Vapor Deposition (CVD)en_US
dc.subjectGraphiteen_US
dc.subjectImpregnation methoden_US
dc.subjectMethaneen_US
dc.subjectNanotubesen_US
dc.titleFormation of carbon nanotubes from methane decomposition: Effect of concentration of Fe₃O₄ on the diameters distributionsen_US
dc.typeArticleen_US
dc.identifier.urlhttp://www.scientific.net/AMR.832.62
dc.identifier.doi10.4028/www.scientific.net/AMR.832.62
dc.contributor.urlwwliu@unimap.edu.myen_US
dc.contributor.urltijjaniadam@yahoo.comen_US
dc.contributor.urlazizan@usm.edu.myen_US
dc.contributor.urlchai.siang.piao@eng.monash.edu.myen_US
dc.contributor.urlchrahman@eng.usm.myen_US
dc.contributor.urluda@unimap.edu.myen_US


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