Organic-vapor-induced Repeatable entrance and exit of C 60 into/from single-wall carbon nanohorns at room temperature

Jin Miyawaki, Masako Yudasaka, Ryota Yuge, Sumio Iijinia

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We found that ethanol vapor forced C 60 encapsulated inside single-wall carbon nanohorns (SWNHs) to exit from SWNHs at room temperature, and in reverse, toluene vapor forced the ejected C 60 to re-enter. Interestingly, these entrance and exit behaviors were repeatable. Thermogravimetric analyses suggested C 60-toluene pseudosolvate formation in internal hollow nanospaces of SWNHs. We consider the mechanism of the backand-forth transportations; the coincorporated toluene lured C 60 from inside to outside SWNHs through adsorbed layers of ethanol formed on the SWNH surfaces. In the re-entrance, the toluene-adsorbed layer mediated transportation of C 60 from outside to the most stable sites, that is, inside SWNHs.

Original languageEnglish
Pages (from-to)9719-9722
Number of pages4
JournalJournal of Physical Chemistry C
Issue number27
Publication statusPublished - Jul 12 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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