Quantitative phase analysis of boron nitride nanotubes using Rietveld refinement

Yong Il Kim, Jae Kap Jung, Kwon Sang Ryu, Seung Hoon Nahm, Duncan H. Gregory

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Crystalline boron nitride nanotubes (BNNTs) with an average outer diameter of about 40 nm and several micrometres in length were synthesized by chemical vapour deposition from boron and magnesium oxide. Rietveld refinement and 11B solid-state nuclear magnetic resonance (NMR) spectroscopy were employed to quantitatively determine the phase of synthesized BNNTs. The structural parameters for the BNNTs were determined by Rietveld refinement against powder x-ray diffraction data with a model based on the results of NMR analysis. The final weighted R -factor, Rwp, was 6.08% and the goodness-of-fit indicator, S (= Rwp/Re), was 1.52. The BNNTs consisted of hexagonal BN, rhombohedral BN and MgO with refined weight fractions of 76.3%, 21.2% and 2.5%, respectively.

Original languageEnglish
Pages (from-to)1127-1131
Number of pages5
JournalJournal of Physics D: Applied Physics
Volume38
Issue number8
DOIs
Publication statusPublished - Apr 21 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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