Study of nitrogen adsorbed on single-walled carbon nanotube bundles

被引：50

作者：

Yoo, DH

Rue, GH

Hwang, YH

Kim, HK ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea

[2] Pusan Natl Univ, RCDAMP, Pusan 609735, South Korea

[3] Kyungpook Natl Univ, Sch Elect & Elect Engn, Taegu 702701, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2002年 / 106卷 / 13期

关键词：

D O I：

10.1021/jp013004e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of N-2 on close-ended single-walled carbon nanotube bundles was studied at different temperatures ranging from 81 to 94 K. The isosteric heat of adsorption was obtained from the adsorption isotherm measurements, and the binding energy of N-2 was estimated from the isosteric heat of adsorption data in the low-coverage region. The estimated binding energy was about 86 meV, and this value lies between those of Ne and CH4 on nanotube bundles. It was also observed that the isosteric heat of adsorption increased in regions of low coverage and decreased as the coverage increased. T his was due to both interactions between N-2 molecules and the heterogeneity of the nanotube bundles.

引用

页码：3371 / 3374

页数：4

共 32 条

[21] UNRAVELING NANOTUBES - FIELD-EMISSION FROM AN ATOMIC WIRE [J].