Nanoparticle Traffic on Helical Tracks: Thermophoretic Mass Transport through Carbon Nanotubes

Philipp A.E. Schoen, Jens Honore Walther, Salvatore Arcidiacono, Dimos Poulikakos, Petros Koumoutsakos

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Using molecular dynamics simulations, we demonstrate and quantify thermophoretic motion of solid gold nanoparticles inside carbon nanotubes subject to wall temperature gradients ranging from 0.4 to 25 K/nm. For temperature gradients below 1 K/nm, we find that the particles move "on tracks" in a predictable fashion as they follow unique helical orbits depending on the geometry of the carbon nanotubes. These findings markedly advance our knowledge of mass transport mechanisms relevant to nanoscale applications.
Original languageEnglish
JournalNano Letters
Volume6
Issue number9
Pages (from-to)1910-1917
ISSN1530-6984
DOIs
Publication statusPublished - 2006

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