Smallest Archimedean Screw: Facet Dynamics and Friction in Multiwalled Nanotubes

Roberto Guerra; Itai Leven; Andrea Vanossi; Oded Hod; Erio Tosatti

doi:10.1021/acs.nanolett.7b01718

Smallest Archimedean Screw: Facet Dynamics and Friction in Multiwalled Nanotubes

Roberto Guerra^*, Itai Leven, Andrea Vanossi, Oded Hod, Erio Tosatti

^*Corresponding author for this work

School of Chemistry

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We identify a new material phenomenon, where minute mechanical manipulations induce pronounced global structural reconfigurations in faceted multiwalled nanotubes. This behavior has strong implications on the tribological properties of these systems and may be the key to understand the enhanced interwall friction recently measured for boron-nitride nanotubes with respect to their carbon counterparts. Notably, the fast rotation of helical facets in these systems upon coaxial sliding may serve as a nanoscale Archimedean screw for directional transport of physisorbed molecules.

Original language	English
Pages (from-to)	5321-5328
Number of pages	8
Journal	Nano Letters
Volume	17
Issue number	9
DOIs	https://doi.org/10.1021/acs.nanolett.7b01718
State	Published - 13 Sep 2017

Funding

Funders	Funder number
Tel Aviv University
European Commission
Seventh Framework Programme	320796

Keywords

Nanotube
faceting
friction

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10.1021/acs.nanolett.7b01718

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title = "Smallest Archimedean Screw: Facet Dynamics and Friction in Multiwalled Nanotubes",

abstract = "We identify a new material phenomenon, where minute mechanical manipulations induce pronounced global structural reconfigurations in faceted multiwalled nanotubes. This behavior has strong implications on the tribological properties of these systems and may be the key to understand the enhanced interwall friction recently measured for boron-nitride nanotubes with respect to their carbon counterparts. Notably, the fast rotation of helical facets in these systems upon coaxial sliding may serve as a nanoscale Archimedean screw for directional transport of physisorbed molecules.",

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AU - Hod, Oded

AU - Tosatti, Erio

PY - 2017/9/13

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N2 - We identify a new material phenomenon, where minute mechanical manipulations induce pronounced global structural reconfigurations in faceted multiwalled nanotubes. This behavior has strong implications on the tribological properties of these systems and may be the key to understand the enhanced interwall friction recently measured for boron-nitride nanotubes with respect to their carbon counterparts. Notably, the fast rotation of helical facets in these systems upon coaxial sliding may serve as a nanoscale Archimedean screw for directional transport of physisorbed molecules.

AB - We identify a new material phenomenon, where minute mechanical manipulations induce pronounced global structural reconfigurations in faceted multiwalled nanotubes. This behavior has strong implications on the tribological properties of these systems and may be the key to understand the enhanced interwall friction recently measured for boron-nitride nanotubes with respect to their carbon counterparts. Notably, the fast rotation of helical facets in these systems upon coaxial sliding may serve as a nanoscale Archimedean screw for directional transport of physisorbed molecules.

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Smallest Archimedean Screw: Facet Dynamics and Friction in Multiwalled Nanotubes

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