Changes of the electronic structure of the atoms of nitrogen in nitrogen-doped multiwalled carbon nanotubes under the influence of pulsed ion radiation

P. M. Korusenko, V. V. Bolotov, S. N. Nesov, S. N. Povoroznyuk, I. P. Khailov

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    Abstract

    With the use of X-ray photoelectron spectroscopy (XPS) there have been investigated the changes of the chemical state of nitrogen atoms in the structure of nitrogen-doped multiwalled carbon nanotubes (CNx-MWCNTs) resulting from the impact of pulsed ion beam at various parameters of the beam (energy density, number of pulses). It has been established that irradiation with the pulsed ion beam leads to a reduction of the total amount of nitrogen in CNx nanotubes. It has been shown that a single pulse irradiation of ion beam at the energy densities of 0.5, 1, 1.5 J/cm2 leads to restructuring of the nitrogen from pyridinic and pyrrolic configuration to graphitic state. Complete removal of nitrogen (pyridinic, pyrrolic, graphitic) embedded in the structure of the walls of CNx nanotubes occurs at ten pulses and 1.5 J/cm2.

    Original languageEnglish
    Pages (from-to)131-135
    Number of pages5
    JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Volume358
    DOIs
    Publication statusPublished - 23 Jun 2015

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    Keywords

    • CN<inf>x</inf> nanotubes
    • Nitrogen atomic percentage
    • Nitrogen-doped multiwalled carbon nanotubes
    • Pulsed ion beam
    • X-ray photoelectron spectroscopy

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Instrumentation

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