Toward Synthesis and Characterization of Unconventional C66 and C68 Fullerenes inside Carbon Nanotubes

Viktor Zólyomi (Korresp. Autor*in), Herwig Peterlik, Johannes Bernardi, Mónika Bokor, István László, János Koltai, Jenö Kürti, Martin Knupfer, Hans Kuzmany, Thomas Pichler, Ferenc Simon

Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed

Abstract

We present compelling evidence pointing to the possible synthesis of unconventional C66 and C68 fullerenes in the interior of single-walled carbon nanotubes. The production proceeds from C60-toluene/benzene clathrates encapsulated inside the nanotubes using heat-driven nanotesttube chemistry. All isomers violate the so-called isolated pentagon rule and are stabilized solely by the proximity of the wall of the host nanotube. We present detailed characterization of the unconventional fullerenes using Raman spectroscopy, 13C isotope labeling of the benzene molecules, transmission electron microscopy, X-ray diffractometry, and first-principles calculations. Multiple isomers of both C66 and C68 are identified in the sample. We argue that our method opens the way to high-yield synthesis of unconventional fullerenes.
OriginalspracheEnglisch
Seiten (von - bis)30260–30268
Seitenumfang9
FachzeitschriftThe Journal of Physical Chemistry Part C (Nanomaterials and Interfaces)
Jahrgang118
Ausgabenummer51
Frühes Online-Datum25 Nov. 2014
DOIs
PublikationsstatusVeröffentlicht - 26 Dez. 2014

ÖFOS 2012

  • 103018 Materialphysik
  • 103009 Festkörperphysik

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