Behavior of C60 under hydrothermal conditions: Transformation to amorphous carbon and formation of carbon nanotubes

Wojciech L. Suchanek, Joseph A. Libera, Yury Gogotsi, Masahiro Yoshimura

研究成果: Article同行評審

35 引文 斯高帕斯(Scopus)

摘要

The behavior of fullerenes C60 under hydrothermal conditions between 200 and 800°C, and under 100 MPa pressure, in the absence and in the presence of nickel is reported. The highest temperature of fullerene stability in water was 400°C after a 48-h-long treatment. Increasing the temperature and/or time of the hydrothermal treatment resulted in transformation of fullerene to amorphous carbon. At 700°C, high-quality open-ended multiwalled carbon nanotubes were formed in the vicinity of nickel particles. These nanotubes typically had an outer diameter of 30-40 nm and a wall thickness of 5 nm, with a graphitization level similar to that of carbon nanotubes prepared by chemical vapor deposition. The potential for large-scale synthesis of the carbon nanotubes by the hydrothermal technique is discussed. Since the present study was conducted under conditions which are common in the geological environment, our results imply that carbon nanotubes may form in natural hydrothermal systems.

原文English
頁(從 - 到)184-188
頁數5
期刊Journal of Solid State Chemistry
160
發行號1
DOIs
出版狀態Published - 2001

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 陶瓷和複合材料
  • 凝聚態物理學
  • 物理與理論化學
  • 無機化學
  • 材料化學

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