Abstract
A simple but effective way of producing short cup-stacked carbon nanotubes with high quality is demonstrated using sonication in an ethanol/distilled water mixture. The substantial removal of amorphous carbon deposited on the truncated conical layer-stacked nanotubes by controlled air oxidation was a critical precondition to cut the nanotubes without substantial structural degradation. The short nanotubes (below 1 μm) prepared by a sonication-generated shear force exhibited a narrow length distribution (median length = 0.2 μm) and chemically active edges in the outer surface, thereby resulting in high dispersibility in an aqueous solution.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3643-3647 |
| Number of pages | 5 |
| Journal | Carbon |
| Volume | 48 |
| Issue number | 12 |
| DOIs | |
| State | Published - Oct 2010 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- General Materials Science