Enhancement of adsorption inside of single-walled nanotubes: opening the entry ports

被引：425

作者：

Kuznetsova, A

Mawhinney, DB

Naumenko, V

Yates, JT ^{[1
]}

Liu, J

Smalley, RE

机构：

[1] Univ Pittsburgh, Ctr Surface Sci, Dept Chem, Pittsburgh, PA 15260 USA

[2] Rice Univ, Dept Chem, Houston, TX 77005 USA

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 321卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(00)00341-9

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：

Opening the ends of the single-walled carbon nanotube by thermal activation increases both the kinetic rate and the saturation capacity of the nanotubes far Xe adsorption at 95 K. Infrared studies show the existence of carboxylic acid and quinone groups on the nanotube surface prior to heating above 623 K. These groups decompose during heat treatment of nanotube sample from 623 to 1073 K producing CO, CO2, CH4 and H-2. The removal of a large number of these groups opens the entry ports fur adsorption on the inner surface of the nanotube and leads to dramatically enhanced Xe adsorption. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：292 / 296

页数：5

共 18 条

[1] OPENING CARBON NANOTUBES WITH OXYGEN AND IMPLICATIONS FOR FILLING [J].