Abstract
The nanoscroll-to-nanotube thermal transformation was studied for H 4Nb 6O 17·4.4H 2O scrolls, prepared by exfoliation of K 4Nb 6O 17. Thermal dehydration of the scrolls produces Nb 2O 5 nanotubes at 400-450°C. The nontopochemical transformation results in polycrystalline nanotubes; however, significant texturing with respect to the tube axis is observed. Substituting Ta for Nb in the precursor compound led to a lower yield of scrolls, most likely because there is less built-in lattice strain to drive scrolling of the unilamellar colloidal sheets.
Original language | English (US) |
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Pages (from-to) | 2142-2145 |
Number of pages | 4 |
Journal | Nano letters |
Volume | 7 |
Issue number | 7 |
DOIs | |
State | Published - Jul 1 2007 |
All Science Journal Classification (ASJC) codes
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering