Thermal stability and high temperature graphitization of bisazafullerene (C59N)2 as studied by IR and Raman spectroscopy

Matthias Krause, Silvia Baes-Fischlmair, Rudolf Pfeiffer, Wolfgang Plank, Thomas Pichler, Hans Kuzmany, Nikos Tagmatarchis, Kosmas Prassides

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Thermal stability and high-temperature degradation of pristine bisazafullerene (C59N)2 were analyzed by infrared and Raman spectroscopy in the temperature range from 300 to 745 K. The spectra showed a reversible temperature dependence up to 550 K. For higher temperatures an irreversible degradation into disordered graphite was found. Approximately 55% of the material resisted a thermal treatment of 745 K for several hours. A mechanism involving a low stationary concentration of C59N° monomer radical species and a slow graphitization is proposed for the thermolysis of the material. The remarkable thermal stability of pristine bisazafullerene (C59N)2 is ascribed to the low stability of the C59N° monomer radical species, the high activation energy for graphitization, and the absence of other reaction partners under high vacuum conditions.

本文言語English
ページ(範囲)11964-11969
ページ数6
ジャーナルJournal of Physical Chemistry B
105
48
DOI
出版ステータスPublished - 2001 12月 6

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 表面、皮膜および薄膜
  • 材料化学

フィンガープリント

「Thermal stability and high temperature graphitization of bisazafullerene (C59N)2 as studied by IR and Raman spectroscopy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル