A perfect carbon nanotube with two closed ends.
A perfect carbon nanotube with two closed ends consisting of graphitized carbon was experimentally observed. The large carbon nanotube, with a diameter of 187 nm and a length of 1.2 microns, was synthesized by pyrolysis of iron(II) phthalocyanine (FePc) under an Ar/NH3 flow at 900 degrees C on a nickel substrate. The structure and composition of the nanotube were determined by high-resolution transmission electron microscopy and electron energy loss spectroscopy. The carbon nanotube seems to grow spontaneously by some autocatalytic process.
Wang
Xianbao
X
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
Liu
Yunqi
Y
Zhu
Daoben
D
D003460:Crystallization / Q000379:methods*; D006358:Hot Temperature; D008422:Materials Testing / Q000379:methods*; D008854:Microscopy, Electron; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000302:isolation & purification; D009532:Nickel / Q000737:chemistry; D011786:Quality Control; D013057:Spectrum Analysis / Q000379:methods; D014835:Volatilization
D037742:Nanotubes, Carbon; D009532:Nickel