Study of nitrogen adsorbed on open-ended nanotube bundles

Dae Hwang Yoo; Gi Hong Rue; Moses H.W. Chan; Yoon Hwae Hwang; Hyung Kook Kim

doi:10.1021/jp026925d

Study of nitrogen adsorbed on open-ended nanotube bundles

Dae Hwang Yoo, Gi Hong Rue, Moses H.W. Chan, Yoon Hwae Hwang, Hyung Kook Kim

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43 Scopus citations

Abstract

The adsorption of N₂ on the open-ended single-walled carbon nanotube bundles was studied. The amount corresponding to the first coverage adsorbed on open-ended carbon nanotube bundles is three times larger than the amount adsorbed on closed-ended nanotube bundles. The isosteric heat of adsorption was obtained from the adsorption isotherm measurement performed at temperatures ranging from 117 to 130 K. The estimated heat of adsorption of nitrogen on the open-ended nanotube bundles is about twice as great as that on the closed-ended nanotube bundles. This leads directly to the conclusion that the binding energy of nitrogen on the open-ended nanotube is greater than that of nitrogen on the closed-ended nanotube bundles.

Original language	English (US)
Pages (from-to)	1540-1542
Number of pages	3
Journal	Journal of Physical Chemistry B
Volume	107
Issue number	7
DOIs	https://doi.org/10.1021/jp026925d
State	Published - Feb 20 2003

All Science Journal Classification (ASJC) codes

Materials Chemistry
Surfaces, Coatings and Films
Physical and Theoretical Chemistry

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title = "Study of nitrogen adsorbed on open-ended nanotube bundles",

abstract = "The adsorption of N2 on the open-ended single-walled carbon nanotube bundles was studied. The amount corresponding to the first coverage adsorbed on open-ended carbon nanotube bundles is three times larger than the amount adsorbed on closed-ended nanotube bundles. The isosteric heat of adsorption was obtained from the adsorption isotherm measurement performed at temperatures ranging from 117 to 130 K. The estimated heat of adsorption of nitrogen on the open-ended nanotube bundles is about twice as great as that on the closed-ended nanotube bundles. This leads directly to the conclusion that the binding energy of nitrogen on the open-ended nanotube is greater than that of nitrogen on the closed-ended nanotube bundles.",

author = "Yoo, {Dae Hwang} and Rue, {Gi Hong} and Chan, {Moses H.W.} and Hwang, {Yoon Hwae} and Kim, {Hyung Kook}",

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doi = "10.1021/jp026925d",

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T1 - Study of nitrogen adsorbed on open-ended nanotube bundles

AU - Yoo, Dae Hwang

AU - Rue, Gi Hong

AU - Chan, Moses H.W.

AU - Hwang, Yoon Hwae

AU - Kim, Hyung Kook

PY - 2003/2/20

Y1 - 2003/2/20

N2 - The adsorption of N2 on the open-ended single-walled carbon nanotube bundles was studied. The amount corresponding to the first coverage adsorbed on open-ended carbon nanotube bundles is three times larger than the amount adsorbed on closed-ended nanotube bundles. The isosteric heat of adsorption was obtained from the adsorption isotherm measurement performed at temperatures ranging from 117 to 130 K. The estimated heat of adsorption of nitrogen on the open-ended nanotube bundles is about twice as great as that on the closed-ended nanotube bundles. This leads directly to the conclusion that the binding energy of nitrogen on the open-ended nanotube is greater than that of nitrogen on the closed-ended nanotube bundles.

AB - The adsorption of N2 on the open-ended single-walled carbon nanotube bundles was studied. The amount corresponding to the first coverage adsorbed on open-ended carbon nanotube bundles is three times larger than the amount adsorbed on closed-ended nanotube bundles. The isosteric heat of adsorption was obtained from the adsorption isotherm measurement performed at temperatures ranging from 117 to 130 K. The estimated heat of adsorption of nitrogen on the open-ended nanotube bundles is about twice as great as that on the closed-ended nanotube bundles. This leads directly to the conclusion that the binding energy of nitrogen on the open-ended nanotube is greater than that of nitrogen on the closed-ended nanotube bundles.

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JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

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Study of nitrogen adsorbed on open-ended nanotube bundles

Abstract

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