Formation of tin-tin oxide core–shell nanoparticles in the composite SnO2−x/nitrogen-doped carbon nanotubes by pulsed ion beam irradiation

P. M. Korusenko, S. N. Nesov, A. V. Bolotov, S. N. Povoroznyuk, A. I. Pushkarev, K. E. Ivlev, D. A. Smirnov

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Abstract

The complex methods of transmission electron microscopy, energy dispersive X-ray analysis, and X-ray photoelectron spectroscopy were used to investigate the changes in the morphology, phase composition, and electronic structure of the composite SnO2−x/nitrogen-doped multiwalled carbon nanotubes (SnO2−x/N-MWCNTs) irradiated with the pulsed ion beam of nanosecond duration. The irradiation of the composite SnO2−x/N-MWCNTs leads to the formation of nanoparticles with the core–shell structure on the surface of CNTs with a sharp interfacial boundary. It has been established that the “core” is a metal tin (Sn0) with a typical size of 5–35 nm, and the “shell” is a thin amorphous layer (2–6 nm) consisting of nonstoichiometric tin oxide with a low oxygen content. The “core–shell” structure Sn[sbnd]SnOx is formed due to the process of heating and evaporation of SnO2−x under the effect of the ion beam, followed by vapor deposition on the surface of carbon nanotubes.

Original languageEnglish
Pages (from-to)37-43
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume394
DOIs
Publication statusPublished - 1 Mar 2017

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Keywords

  • Composite
  • Core–shell
  • Nitrogen-doped multiwalled carbon nanotubes
  • Pulsed ion beam
  • Sn[sbnd]SnO
  • Tin oxide

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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