| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5358025 | Applied Surface Science | 2011 | 8 Pages |
Abstract
⺠We produced multi-walled carbon nanotubes powder by pyrolysis of camphor mixed with ferrocene, and then used non-oxidative and oxidative acidic treatments for iron removal. ⺠We analyzed the elimination and/or oxidation of iron nanoparticles by X-ray photoelectron spectroscopy, monitoring Fe2p, O1s and C1s peaks. ⺠We carried out complementary investigation by thermogravimetric analysis, atomic absorption spectroscopy, Raman Spectroscopy and transmission electron microscopy (TEM) to evaluate the effectiveness of each treatment. ⺠A purity degree higher than 98% was achieved only with non-oxidative treatments using sonification process.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
E.R. Edwards, E.F. Antunes, E.C. Botelho, M.R. Baldan, E.J. Corat,