On the preparation of as-produced and purified single-walled carbon nanotube samples for standardized X-ray diffraction characterization

Rula M. Allaf, Iris V. Rivero, Shayla S. Spearman, Louisa J. Hope-Weeks

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The aim of this research was to specify proper sample conditioning for acquiring representative X-ray diffraction (XRD) profiles for single-walled carbon nanotube (SWCNT) samples. In doing so, a specimen preparation method for quantitative XRD characterization of as-produced and purified arc-discharge SWCNT samples has been identified. Series of powder XRD profiles were collected at different temperatures, states, and points of time to establish appropriate conditions for acquiring XRD profiles without inducing much change to the specimen. It was concluded that heating in the 300-450 °C range for 20 minutes, preferably vacuum-assisted, and then sealing the sample is an appropriate XRD specimen preparation technique for purified arc-discharge SWCNT samples, while raw samples do not require preconditioning for characterization.

Original languageEnglish
Pages (from-to)857-864
Number of pages8
JournalMaterials Characterization
Volume62
Issue number9
DOIs
StatePublished - Sep 2011

Keywords

  • Adsorption
  • Heat treatment
  • Sample preparation
  • Single-walled carbon nanotubes
  • X-ray diffraction

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