Diameter-dependent ion transport through the interior of isolated single-walled carbon nanotubes

Wonjoon Choi, Zachary W. Ulissi, Steven F E Shimizu, Darin O. Bellisario, Mark D. Ellison, Michael S. Strano

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

Nanopores that approach molecular dimensions demonstrate exotic transport behaviour and are theoretically predicted to display discontinuities in the diameter dependence of interior ion transport because of structuring of the internal fluid. No experimental study has been able to probe this diameter dependence in the 0.5-2 nm diameter regime. Here we observe a surprising fivefold enhancement of stochastic ion transport rates for single-walled carbon nanotube centered at a diameter of approximately 1.6 nm. An electrochemical transport model informed from literature simulations is used to understand the phenomenon. We also observe rates that scale with cation type as Li+ >K+ >Cs+ >Na+ and pore blocking extent as K+ >Cs+ >Na+ >Li+ potentially reflecting changes in hydration shell size. Across several ion types, the pore-blocking current and inverse dwell time are shown to scale linearly at low electric field. This work opens up new avenues in the study of transport effects at the nanoscale.

Original languageEnglish
Article number2397
JournalNature Communications
Volume4
DOIs
Publication statusPublished - 2013 Sep 23

Fingerprint

Carbon Nanotubes
Ion Transport
Single-walled carbon nanotubes (SWCN)
carbon nanotubes
Nanopores
Ions
Cations
ions
porosity
Hydration
dwell
Electric fields
hydration
discontinuity
Fluids
cations
electric fields
augmentation
probes
fluids

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Physics and Astronomy(all)

Cite this

Choi, W., Ulissi, Z. W., Shimizu, S. F. E., Bellisario, D. O., Ellison, M. D., & Strano, M. S. (2013). Diameter-dependent ion transport through the interior of isolated single-walled carbon nanotubes. Nature Communications, 4, [2397]. https://doi.org/10.1038/ncomms3397

Diameter-dependent ion transport through the interior of isolated single-walled carbon nanotubes. / Choi, Wonjoon; Ulissi, Zachary W.; Shimizu, Steven F E; Bellisario, Darin O.; Ellison, Mark D.; Strano, Michael S.

In: Nature Communications, Vol. 4, 2397, 23.09.2013.

Research output: Contribution to journalArticle

Choi, Wonjoon ; Ulissi, Zachary W. ; Shimizu, Steven F E ; Bellisario, Darin O. ; Ellison, Mark D. ; Strano, Michael S. / Diameter-dependent ion transport through the interior of isolated single-walled carbon nanotubes. In: Nature Communications. 2013 ; Vol. 4.
@article{bf6014255dc9440986b007c13e3b4e73,
title = "Diameter-dependent ion transport through the interior of isolated single-walled carbon nanotubes",
abstract = "Nanopores that approach molecular dimensions demonstrate exotic transport behaviour and are theoretically predicted to display discontinuities in the diameter dependence of interior ion transport because of structuring of the internal fluid. No experimental study has been able to probe this diameter dependence in the 0.5-2 nm diameter regime. Here we observe a surprising fivefold enhancement of stochastic ion transport rates for single-walled carbon nanotube centered at a diameter of approximately 1.6 nm. An electrochemical transport model informed from literature simulations is used to understand the phenomenon. We also observe rates that scale with cation type as Li+ >K+ >Cs+ >Na+ and pore blocking extent as K+ >Cs+ >Na+ >Li+ potentially reflecting changes in hydration shell size. Across several ion types, the pore-blocking current and inverse dwell time are shown to scale linearly at low electric field. This work opens up new avenues in the study of transport effects at the nanoscale.",
author = "Wonjoon Choi and Ulissi, {Zachary W.} and Shimizu, {Steven F E} and Bellisario, {Darin O.} and Ellison, {Mark D.} and Strano, {Michael S.}",
year = "2013",
month = "9",
day = "23",
doi = "10.1038/ncomms3397",
language = "English",
volume = "4",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Diameter-dependent ion transport through the interior of isolated single-walled carbon nanotubes

AU - Choi, Wonjoon

AU - Ulissi, Zachary W.

AU - Shimizu, Steven F E

AU - Bellisario, Darin O.

AU - Ellison, Mark D.

AU - Strano, Michael S.

PY - 2013/9/23

Y1 - 2013/9/23

N2 - Nanopores that approach molecular dimensions demonstrate exotic transport behaviour and are theoretically predicted to display discontinuities in the diameter dependence of interior ion transport because of structuring of the internal fluid. No experimental study has been able to probe this diameter dependence in the 0.5-2 nm diameter regime. Here we observe a surprising fivefold enhancement of stochastic ion transport rates for single-walled carbon nanotube centered at a diameter of approximately 1.6 nm. An electrochemical transport model informed from literature simulations is used to understand the phenomenon. We also observe rates that scale with cation type as Li+ >K+ >Cs+ >Na+ and pore blocking extent as K+ >Cs+ >Na+ >Li+ potentially reflecting changes in hydration shell size. Across several ion types, the pore-blocking current and inverse dwell time are shown to scale linearly at low electric field. This work opens up new avenues in the study of transport effects at the nanoscale.

AB - Nanopores that approach molecular dimensions demonstrate exotic transport behaviour and are theoretically predicted to display discontinuities in the diameter dependence of interior ion transport because of structuring of the internal fluid. No experimental study has been able to probe this diameter dependence in the 0.5-2 nm diameter regime. Here we observe a surprising fivefold enhancement of stochastic ion transport rates for single-walled carbon nanotube centered at a diameter of approximately 1.6 nm. An electrochemical transport model informed from literature simulations is used to understand the phenomenon. We also observe rates that scale with cation type as Li+ >K+ >Cs+ >Na+ and pore blocking extent as K+ >Cs+ >Na+ >Li+ potentially reflecting changes in hydration shell size. Across several ion types, the pore-blocking current and inverse dwell time are shown to scale linearly at low electric field. This work opens up new avenues in the study of transport effects at the nanoscale.

UR - http://www.scopus.com/inward/record.url?scp=84884264466&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884264466&partnerID=8YFLogxK

U2 - 10.1038/ncomms3397

DO - 10.1038/ncomms3397

M3 - Article

VL - 4

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 2397

ER -