Separation of Empty and Water-Filled Single-Wall Carbon Nanotubes

Jeffrey A. Fagan; Ji Yeon Huh; Jeffrey R. Simpson; Jeffrey L. Blackburn; Josh M. Holt; Brian A. Larsen; Angela R.Hight Walker

doi:10.1021/nn200458t

Separation of Empty and Water-Filled Single-Wall Carbon Nanotubes

Jeffrey A. Fagan, Ji Yeon Huh, Jeffrey R. Simpson, Jeffrey L. Blackburn, Josh M. Holt, Brian A. Larsen, Angela R.Hight Walker

Materials Science

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

73 Scopus Citations

Abstract

The separation of empty and water-filled laser ablation and electric arc synthesized nanotubes is reported. Centrifugation of these large-diameter nanotubes dispersed with sodium deoxycholate using specific conditions produces isolated bands of empty and water-filled nanotubes without significant diameter selection. This separation is shown to be consistent across multiple nanotube populations dispersed from different source soots. Detailed spectroscopic characterization of the resulting empty and filled fractions reveals that water filling leads to systematic changes to the optical and vibrational properties. Furthermore, sequential separation of the resolved fractions using cosurfactants and density gradient ultracentrifugation reveals that water filling strongly influences the optimal conditions for metallic and semiconducting separation.

Original language	American English
Pages (from-to)	3943-3953
Number of pages	11
Journal	ACS Nano
Volume	5
Issue number	5
DOIs	https://doi.org/10.1021/nn200458t https://doi.org/10.1021/nn200458t
State	Published - 2011

NREL Publication Number

NREL/JA-5900-52139

Keywords

Centrifugation
Deoxycholate
Empty
Nanotube
Separation
SWCNT
Water-filled

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abstract = "The separation of empty and water-filled laser ablation and electric arc synthesized nanotubes is reported. Centrifugation of these large-diameter nanotubes dispersed with sodium deoxycholate using specific conditions produces isolated bands of empty and water-filled nanotubes without significant diameter selection. This separation is shown to be consistent across multiple nanotube populations dispersed from different source soots. Detailed spectroscopic characterization of the resulting empty and filled fractions reveals that water filling leads to systematic changes to the optical and vibrational properties. Furthermore, sequential separation of the resolved fractions using cosurfactants and density gradient ultracentrifugation reveals that water filling strongly influences the optimal conditions for metallic and semiconducting separation.",

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T1 - Separation of Empty and Water-Filled Single-Wall Carbon Nanotubes

AU - Fagan, Jeffrey A.

AU - Huh, Ji Yeon

AU - Simpson, Jeffrey R.

AU - Blackburn, Jeffrey L.

AU - Holt, Josh M.

AU - Larsen, Brian A.

AU - Walker, Angela R.Hight

PY - 2011

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N2 - The separation of empty and water-filled laser ablation and electric arc synthesized nanotubes is reported. Centrifugation of these large-diameter nanotubes dispersed with sodium deoxycholate using specific conditions produces isolated bands of empty and water-filled nanotubes without significant diameter selection. This separation is shown to be consistent across multiple nanotube populations dispersed from different source soots. Detailed spectroscopic characterization of the resulting empty and filled fractions reveals that water filling leads to systematic changes to the optical and vibrational properties. Furthermore, sequential separation of the resolved fractions using cosurfactants and density gradient ultracentrifugation reveals that water filling strongly influences the optimal conditions for metallic and semiconducting separation.

AB - The separation of empty and water-filled laser ablation and electric arc synthesized nanotubes is reported. Centrifugation of these large-diameter nanotubes dispersed with sodium deoxycholate using specific conditions produces isolated bands of empty and water-filled nanotubes without significant diameter selection. This separation is shown to be consistent across multiple nanotube populations dispersed from different source soots. Detailed spectroscopic characterization of the resulting empty and filled fractions reveals that water filling leads to systematic changes to the optical and vibrational properties. Furthermore, sequential separation of the resolved fractions using cosurfactants and density gradient ultracentrifugation reveals that water filling strongly influences the optimal conditions for metallic and semiconducting separation.

KW - Centrifugation

KW - Deoxycholate

KW - Empty

KW - Nanotube

KW - Separation

KW - SWCNT

KW - Water-filled

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Separation of Empty and Water-Filled Single-Wall Carbon Nanotubes

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