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

Journal Article (Journal Article)

Opening the ends of the single-walled carbon nanotube by thermal activation increases both the kinetic rate and the saturation capacity of the nanotubes for 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 H2. The removal of a large number of these groups opens the entry ports for adsorption on the inner surface of the nanotube and leads to dramatically enhanced Xe adsorption.

Full Text

Duke Authors

Cited Authors

  • Kuznetsova, A; Mawhinney, DB; Naumenko, V; Yates, JT; Liu, J; Smalley, RE

Published Date

  • April 28, 2000

Published In

Volume / Issue

  • 321 / 3-4

Start / End Page

  • 292 - 296

International Standard Serial Number (ISSN)

  • 0009-2614

Digital Object Identifier (DOI)

  • 10.1016/S0009-2614(00)00341-9

Citation Source

  • Scopus