A solid-state hybrid method to synthesize straight carbon nanotubes by pyrolysis of two mixed metal phthalocyanines

Kuang Yun-Hua, Li Ke-Zhi, Li He-Jun, Xu Zhan-Wei, Wang Yong-Jie

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Straight carbon nanotubes (CNTs) were synthesized in large scale through thermal chemical vapor deposition(TCVD) by pyrolysis of two mixed metal phthalocyanines with a certain amount of sulfur at 800-950 °C. The results by field emission scanning electron microscopy (FE-SEM), high resolution transmission electron microscopy (HRTEM) and Raman spectroscopy (Raman) reveal that the as-synthesized CNTs (15 ̃35 nm in diameter, 200̃800 nm in length) are quite straight and well-graphitized with nearly no defects. Two kinds of mixed transition metal phthalocyanines(M(Π)Pc, M=Fe, Co) were used as carbon source to obtain uniform catalysts favoring the growth of the straight CNTs. The solid-state hybrid method is quite safe and efficient for synthesis of straight carbon nanotubes in large scale.

Original languageEnglish
Pages (from-to)951-955
Number of pages5
JournalChinese Journal of Inorganic Chemistry
Volume25
Issue number6
StatePublished - Jun 2009

Keywords

  • Phthalocyanine
  • Straight carbon nanotubes
  • Sulfur
  • Thermal chemical vapor deposition(TCVD)

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