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dc.contributor.authorBarnard, Jonen
dc.contributor.authorPaukner, Cen
dc.contributor.authorKoziol, Krzysztofen
dc.date.accessioned2017-01-06T09:28:48Z
dc.date.available2017-01-06T09:28:48Z
dc.date.issued2016-10-21en
dc.identifier.issn2040-3364
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/261758
dc.description.abstractWe have studied the influence of different carbon precursors (methane, ethanol and toluene) on the type, diameter and chiral angle distributions of carbon nanotubes (CNTs) grown with the floating catalyst technique in a horizontal gas-flow reactor. Using electron diffraction to study their atomic structures, we found that ethanol and toluene precursors gave high single-wall CNT yields (92% and 89% respectively), with narrow diameter distributions: 1.1 nm to 1.7 nm (ethanol); 1.3 nm to 2.1 nm (toluene), with a propensity for armchair-type chiral angles. In contrast, methane-grown CNTs gave high double-wall CNT yields (75%) with broader diameter populations: 1.2 to 4.6 nm (inner CNT) and 2.2 to 5.3 nm (outer CNT) with a more uniform spread of chiral angles, but weakly peaked around 15 to 20 degrees. These observations agree with known growth models. However, double-wall CNTs grown with toluene showed an unusually narrow interlayer spacing of 0.286 ± 0.003 nm with suggestions of large, 20° to 25°, differences between inner and outer CNT chiral angles. Methane gave a large interlayer spacing (0.385 ± 0.002 nm) with suggestions of small 5° to 10° inter-tube chirality correlations.
dc.languageengen
dc.language.isoenen
dc.publisherRoyal Society of Chemistry
dc.titleThe role of carbon precursor on carbon nanotube chirality in floating catalyst chemical vapour depositionen
dc.typeArticle
prism.endingPage17270
prism.issueIdentifier39en
prism.publicationDate2016en
prism.publicationNameNanoscaleen
prism.startingPage17262
prism.volume8en
dc.identifier.doi10.17863/CAM.6976
dcterms.dateAccepted2016-09-16en
rioxxterms.versionofrecord10.1039/c6nr03895fen
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2016-10-21en
dc.identifier.eissn2040-3372
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Research Council (259061)
cam.issuedOnline2016-09-16en
rioxxterms.freetoread.startdate2017-09-16


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