Production of petal-like graphite sheets by hydrogen arc discharge

✍ Scribed by Y. Ando; X. Zhao; M. Ohkohchi

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 818 KB
• Volume: 35
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/s0008-6223(96)00139-x

✦ Synopsis

By DC arc-discharge evaporation of graphite in the presence of rarefied hydrogen gas, not only carbon nanotubes but also petal-like graphite sheets were produced on the graphite cathode as a carbon deposit. A large number of interlaced petal-like graphite sheets were observed by scanning electron microscopy on the cathode surface which surrounded the region of carbon deposit including multiwalled carbon nanotubes. The crystal structure of these petal-like graphite sheets was confirmed to be stacking of graphene by using a selected area electron diffraction pattern. Here, we propose a mass production method of petal-like graphite sheets by hydrogen arc discharge evaporation.