Abstract
We report a systematic evaluation of the influence of the use of nitric acid at elevated temperature (80°C) as purification and functionalization treatment for four different types of multi wall carbon nanotubes (MWCNTs) and for carbon microparticles upon their physico-chemical properties. We used BET, Raman spectroscopy, high resolution X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy measurements for MWCNTs characterization. We found that nitric acid treatment significantly changes physico-chemical properties of MWCNTs and that these changes vary significantly between different MWCNTs. Therefore we urge researchers to be careful when relying on the physico-chemical properties measured on different MWCNTs samples.
| Original language | English |
|---|---|
| Pages (from-to) | 2671-2676 |
| Number of pages | 6 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 9 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2009 Apr |
All Science Journal Classification (ASJC) codes
- Bioengineering
- Chemistry(all)
- Biomedical Engineering
- Materials Science(all)
- Condensed Matter Physics