The purity and thermal stability in air of metal-encapsulating carbon nanocapsules (MECNCs)

Motohiro Uo, Hanako Kachi, Tsukasa Akasaka, Fumio Watari, Yoshinori Sato, Kenichi Motomiya, Kazuyuki Tohji

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Rare earth elements (Y, La, Ce, Nd, Gd and Dy) encapsulated by carbon nanocapsules (CNCs) were synthesized and their purity and air oxidation stability were estimated. The purity was estimated as the rare earth carbide content. Gd- and Dy-encapsulating CNCs had higher than 30 wt% and others 15 to 20 wt%. Encapsulated rare earth carbide was oxidized by heating in air at 400C or higher. This suggested oxidation damage to the graphene capsules of CNCs.

Original languageEnglish
Pages (from-to)303-309
Number of pages7
JournalFullerenes Nanotubes and Carbon Nanostructures
Volume15
Issue number4
DOIs
Publication statusPublished - 2007 Jul

Keywords

  • Carbide
  • Metal encapsulating carbon nanocapsules
  • Purity
  • Rare earth
  • Thermal stability

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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