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dc.contributor.author Cervantes-Sodi, F
dc.contributor.author McNicholas, TP
dc.contributor.author Simmons, JG
dc.contributor.author Liu, J
dc.contributor.author Csányi, G
dc.contributor.author Ferrari, AC
dc.contributor.author Curtarolo, S
dc.coverage.spatial United States
dc.date.accessioned 2011-06-21T17:27:02Z
dc.date.issued 2010-11-23
dc.identifier http://www.ncbi.nlm.nih.gov/pubmed/20964288
dc.identifier.citation ACS Nano, 2010, 4 (11), pp. 6950 - 6956
dc.identifier.uri http://hdl.handle.net/10161/4101
dc.description.abstract Many applications of nanotubes and nanowires require controlled bottom-up engineering of these nanostructures. In catalytic chemical vapor deposition, the thermo-kinetic state of the nanocatalysts near the melting point is one of the factors ruling the morphology of the grown structures. We present theoretical and experimental evidence of a viscous state for nanoparticles near their melting point. The state exists over a temperature range scaling inversely with the catalyst size, resulting in enhanced self-diffusion and fluidity across the solid-liquid transformation. The overall effect of this phenomenon on the growth of nanotubes is that, for a given temperature, smaller nanoparticles have a larger reaction rate than larger catalysts.
dc.format.extent 6950 - 6956
dc.language eng
dc.language.iso en_US en_US
dc.relation.ispartof ACS Nano
dc.relation.isversionof 10.1021/nn101883s
dc.title Viscous state effect on the activity of Fe nanocatalysts.
dc.title.alternative en_US
dc.type Journal Article
dc.description.version Version of Record en_US
duke.date.pubdate 2010-11-0 en_US
duke.description.endpage 6956 en_US
duke.description.issue 11 en_US
duke.description.startpage 6950 en_US
duke.description.volume 4 en_US
dc.relation.journal Acs Nano en_US
pubs.author-url http://www.ncbi.nlm.nih.gov/pubmed/20964288
pubs.issue 11
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Institutes and Provost's Academic Units
pubs.organisational-group /Duke/Institutes and Provost's Academic Units/Initiatives
pubs.organisational-group /Duke/Institutes and Provost's Academic Units/Initiatives/Energy Initiative
pubs.organisational-group /Duke/Pratt School of Engineering
pubs.organisational-group /Duke/Pratt School of Engineering/Electrical and Computer Engineering
pubs.organisational-group /Duke/Pratt School of Engineering/Mechanical Engineering and Materials Science
pubs.organisational-group /Duke/Trinity College of Arts & Sciences
pubs.organisational-group /Duke/Trinity College of Arts & Sciences/Chemistry
pubs.organisational-group /Duke/Trinity College of Arts & Sciences/Physics
pubs.publication-status Published
pubs.volume 4
dc.identifier.eissn 1936-086X

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