Friction properties of surface-fluorinated carbon nanotubes

R. L.Vander Wal; K. Miyoshi; K. W. Street; A. J. Tomasek; H. Peng; Y. Liu; J. L. Margrave; V. N. Khabashesku

doi:10.1016/j.wear.2005.02.082

Friction properties of surface-fluorinated carbon nanotubes

R. L.Vander Wal, K. Miyoshi, K. W. Street, A. J. Tomasek, H. Peng, Y. Liu, J. L. Margrave, V. N. Khabashesku

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

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Abstract

Surface modification of the tubular or sphere-shaped carbon nanoparticles through chemical treatment, e.g., fluorination, is expected to significantly affect their friction properties. In this study, a direct fluorination of the graphene-built tubular (single-walled carbon nanotubes) structures has been carried out to obtain a series of fluorinated nanotubes (fluoronanotubes) with variable C_nF (n = 2-20) stoichiometries. The friction coefficients for fluoronanotubes, as well as pristine and chemically cut nanotubes, were found to reach values as low as 0.002-0.07, according to evaluation tests run in contact with sapphire in air of about 40% relative humidity on a ball-on-disk tribometer which provided an unidirectional sliding friction motion. These preliminary results demonstrate ultra-low friction properties and show a promise in applications of surface modified nanocarbons as a solid lubricant.

Original language	English (US)
Pages (from-to)	738-743
Number of pages	6
Journal	Wear
Volume	259
Issue number	1-6
DOIs	https://doi.org/10.1016/j.wear.2005.02.082
State	Published - Jul 2005

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.wear.2005.02.082

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title = "Friction properties of surface-fluorinated carbon nanotubes",

abstract = "Surface modification of the tubular or sphere-shaped carbon nanoparticles through chemical treatment, e.g., fluorination, is expected to significantly affect their friction properties. In this study, a direct fluorination of the graphene-built tubular (single-walled carbon nanotubes) structures has been carried out to obtain a series of fluorinated nanotubes (fluoronanotubes) with variable CnF (n = 2-20) stoichiometries. The friction coefficients for fluoronanotubes, as well as pristine and chemically cut nanotubes, were found to reach values as low as 0.002-0.07, according to evaluation tests run in contact with sapphire in air of about 40% relative humidity on a ball-on-disk tribometer which provided an unidirectional sliding friction motion. These preliminary results demonstrate ultra-low friction properties and show a promise in applications of surface modified nanocarbons as a solid lubricant.",

author = "Wal, {R. L.Vander} and K. Miyoshi and Street, {K. W.} and Tomasek, {A. J.} and H. Peng and Y. Liu and Margrave, {J. L.} and Khabashesku, {V. N.}",

note = "Funding Information: The support of Rice research on chemistry and applications of nanocarbon materials by Texas ATP (grant number 003604-0026-2001), Welch Foundation (grant number C-0109), and in part by NASA-URETI (cooperative agreement NCC-1-02038) and Carbon Nanotechnologies, Inc. is greatly appreciated. Other funding through the Vehicle System Program's Low Emission Alternative Power Project, Alternative Energy Foundation Technologies Subproject at NASA Glenn Research Center is acknowledged. The authors gratefully acknowledge David R. Hull for the HRTEM imaging, Duane Dixon for the SEM images and Richard Mondry for assisting in collection of tribological data.",

year = "2005",

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doi = "10.1016/j.wear.2005.02.082",

language = "English (US)",

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T1 - Friction properties of surface-fluorinated carbon nanotubes

AU - Wal, R. L.Vander

AU - Miyoshi, K.

AU - Street, K. W.

AU - Tomasek, A. J.

AU - Peng, H.

AU - Liu, Y.

AU - Margrave, J. L.

AU - Khabashesku, V. N.

N1 - Funding Information: The support of Rice research on chemistry and applications of nanocarbon materials by Texas ATP (grant number 003604-0026-2001), Welch Foundation (grant number C-0109), and in part by NASA-URETI (cooperative agreement NCC-1-02038) and Carbon Nanotechnologies, Inc. is greatly appreciated. Other funding through the Vehicle System Program's Low Emission Alternative Power Project, Alternative Energy Foundation Technologies Subproject at NASA Glenn Research Center is acknowledged. The authors gratefully acknowledge David R. Hull for the HRTEM imaging, Duane Dixon for the SEM images and Richard Mondry for assisting in collection of tribological data.

PY - 2005/7

Y1 - 2005/7

N2 - Surface modification of the tubular or sphere-shaped carbon nanoparticles through chemical treatment, e.g., fluorination, is expected to significantly affect their friction properties. In this study, a direct fluorination of the graphene-built tubular (single-walled carbon nanotubes) structures has been carried out to obtain a series of fluorinated nanotubes (fluoronanotubes) with variable CnF (n = 2-20) stoichiometries. The friction coefficients for fluoronanotubes, as well as pristine and chemically cut nanotubes, were found to reach values as low as 0.002-0.07, according to evaluation tests run in contact with sapphire in air of about 40% relative humidity on a ball-on-disk tribometer which provided an unidirectional sliding friction motion. These preliminary results demonstrate ultra-low friction properties and show a promise in applications of surface modified nanocarbons as a solid lubricant.

AB - Surface modification of the tubular or sphere-shaped carbon nanoparticles through chemical treatment, e.g., fluorination, is expected to significantly affect their friction properties. In this study, a direct fluorination of the graphene-built tubular (single-walled carbon nanotubes) structures has been carried out to obtain a series of fluorinated nanotubes (fluoronanotubes) with variable CnF (n = 2-20) stoichiometries. The friction coefficients for fluoronanotubes, as well as pristine and chemically cut nanotubes, were found to reach values as low as 0.002-0.07, according to evaluation tests run in contact with sapphire in air of about 40% relative humidity on a ball-on-disk tribometer which provided an unidirectional sliding friction motion. These preliminary results demonstrate ultra-low friction properties and show a promise in applications of surface modified nanocarbons as a solid lubricant.

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Friction properties of surface-fluorinated carbon nanotubes

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