Formation of giant onion-like fullerenes under Al nanoparticles by electron irradiation

B. S. Xu, Shunichiro Tanaka

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)

Abstract

The conversion of an amorphous carbon film under Al nanoparticles to giant onion-like fullerenes (GOLFs), which was induced by electron irradiation in a transmission electron microscope, has been investigated. It has become clear that the nucleation and growth processes forming GOLFs from an amorphous carbon film consist of three steps: first, the flakes of GOLFs are induced under Al nanoparticles; second, the flakes grow into a few ellipsoidal graphitic shells; and third, a gradual reorganization occurs into structures comprising the quasi-spheroidal graphitic shells that are GOLFs. Fullerenes containing Al nanoparticles and Al atoms have been generated through these processes. It is suggested that the mechanism involves collisions with high-energy electrons and a catalytic effect of Al, while any temperature rise due to electron irradiation seems to be negligibly small. Acta Metallurgica Inc. Published by Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)5249-5257
Number of pages9
JournalActa Materialia
Volume46
Issue number15
DOIs
Publication statusPublished - 1998 Sep 18
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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