Anchorage of γ-Al2O3 nanoparticles on nitrogen-doped multiwalled carbon nanotubes

A. Rodríguez-Pulido, H. Martínez-Gutiérrez, G. A. Calderon-Polania, M. A.Gonzalez Lozano, D. A. Cullen, H. Terrones, D. J. Smith, M. Terrones

Research output: Contribution to journalArticlepeer-review

Abstract

Nitrogen-doped multiwalled carbon nanotubes (CNx-MWNTs) have been decorated with γ-Al2O3 nanoparticles by a novel method. This process involved a wet chemical approach in conjunction with thermal treatment. During the particle anchoring process, individual CNx-MWNT nanotubes agglomerated into bundles, resulting in arrays of aligned CNx-MWNT coated with γ-Al2O3. Extensive characterization of the resulting γ-Al2O3/CNx-MWNT bundles was performed using a range of electron microscopy imaging and microanalytical techniques. A possible mechanism explaining the nanobundle alignment is described, and possible applications of these materials for the fabrication of ceramic composites using CNx-MWNTs are briefly discussed.

Original languageEnglish
Pages (from-to)17-20
Number of pages4
JournalScripta Materialia
Volume123
DOIs
StatePublished - Oct 1 2016

Keywords

  • Alumina
  • Carbon nanotubes
  • Coating

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