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) |
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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
- Chemistry(all)
- Materials Science(all)