Direct synthesis and structural analysis of nitrogen-doped carbon nanofibers

Seongyop Lim, Seong-Ho Yoon, Isao Mochida, Jung Doo-Hwan

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Abstract

Carbon nanofibers containing a range of nitrogen contents of 1-10 atom % were directly synthesized by catalytic chemical vapor deposition over nickel-based catalysts at 350-600°C using acetonitrile and acrylonitrile. The nitrogen content was controlled by careful choice of the reaction conditions. The N-doped carbon nanofibers showed herringbone structure with 20-60 nm diameter. X-ray photoelectron spectroscopy was applied to examine the chemical state of nitrogen in carbon nanofibers. Structural features of N-doped carbon nanofibers were examined in X-ray diffraction and electron microscopy. The mechanism for nitrogen including the structure of carbon nanofibers through the catalysis was discussed on the basis of the results.

Original languageEnglish
Pages (from-to)8268-8273
Number of pages6
JournalLangmuir
Volume25
Issue number14
DOIs
Publication statusPublished - Jul 21 2009

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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