Opening of single-walled carbon nanotubes: Evidence given by krypton and xenon adsorption

M. R. Babaa, I. Stepanek, K. Masenelli-Varlot, N. Dupont-Pavlovsky, E. McRae, P. Bernier

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Adsorption isotherms of krypton between 77 and 93 K and xenon between 110 and 120 K on mechanically-opened single-walled carbon nanotubes (SWNTs) have been measured. The comparison of the results with those obtained under the same conditions on closed nanotubes is discussed. Evidence of adsorption inside the tubes is given through the appearance of an additional adsorbed amount at very low relative pressure on the isotherms. Different orderings are predicted for xenon and krypton, based on their respective adsorbed amounts inside the nanotubes, and on geometrical considerations. Finally, the fraction of opened nanotubes accessible to xenon and krypton was estimated, as well as the impurity content originating from the cutting process.

Original languageEnglish
Pages (from-to)86-92
Number of pages7
JournalSurface Science
Volume531
Issue number1
DOIs
Publication statusPublished - May 10 2003

Keywords

  • Adsorption isotherms
  • Carbon
  • Noble gases

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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