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 language | English |
|---|---|
| Pages (from-to) | 951-955 |
| Number of pages | 5 |
| Journal | Chinese Journal of Inorganic Chemistry |
| Volume | 25 |
| Issue number | 6 |
| State | Published - Jun 2009 |
Keywords
- Phthalocyanine
- Straight carbon nanotubes
- Sulfur
- Thermal chemical vapor deposition(TCVD)