An effective surfactant-free isolation procedure for single-wall carbon nanotubes
Umek, P; Vrbanic, D; Remskar, M; Mertelj, T; Venturini, P; Pejovnik, S; Mihailovic, D
| HERO ID | 1160469 |
|---|---|
| In Press | No |
| Year | 2002 |
| Title | An effective surfactant-free isolation procedure for single-wall carbon nanotubes |
| Authors | Umek, P; Vrbanic, D; Remskar, M; Mertelj, T; Venturini, P; Pejovnik, S; Mihailovic, D |
| Journal | Carbon |
| Volume | 40 |
| Issue | 14 |
| Page Numbers | 2581-2585 |
| Abstract | An optimised isolation procedure of single-wall carbon nanotubes (SWNTs) from a SWNT soot without using any surfactant is reported. Amorphous carbon and small graphitic particles were washed away with N-methyl-2-pyrrolidone (NMP) and acetone. A large amount of graphite-coated metal particles were removed with the oxidation of the SWNT material with HNO3 (6.5 and 4 M) and by washing the oxidised SWNT material with a mixture of methanol (MeOH) and deionised water. The isolated material was investigated with transmission electron microscopy (TEM) and Raman scattering (647.1 and 532 nm). An elemental analysis of the content of Co and Ni in the SWNT samples isolated at different steps of the isolation procedure was performed. On the basis of the TEM images and elemental analysis it was estimated that the purified material contains more than 75 wt.% of SWNTs. (C) 2002 Elsevier Science Ltd. All rights reserved. |
| Doi | 10.1016/S0008-6223(02)00170-7 |
| Wosid | WOS:000178851300006 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science 000178851300006 |
| Is Public | Yes |
| Keyword | carbon nanotubes; soot; Raman spectroscopy; transmission electron microscopy |
| Is Qa | No |