Back to Search
Start Over
Thermal stability and structural changes of double-walled carbon nanotubes by heat treatment
- Source :
-
Chemical Physics Letters . Nov2004, Vol. 398 Issue 1-3, p87-92. 6p. - Publication Year :
- 2004
-
Abstract
- We describe, for the first time, the sequential structural changes of bundles of double-walled carbon nanotubes (DWNTs) as a function of heat treatment temperature. DWNTs (inner diameters >0.9 nm) are structurally stable up to 2000 °C. Above 2100 °C, the outer walls of adjacent DWNTs start coalescing into large diameter tubes. At temperatures higher than 2100 °C, three different types of structures were observed: (a) large-diameter DWNTs; (b) multi-walled carbon nanotubes (MWNTs), and (c) flaky carbons. The results demonstrate that DWNTs are much more stable than SWNTs, and their stability is comparable to that of MWNTs. [Copyright &y& Elsevier]
- Subjects :
- *CARBON
*NANOTUBES
*FULLERENES
*TUBES
Subjects
Details
- Language :
- English
- ISSN :
- 00092614
- Volume :
- 398
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Chemical Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 14716915
- Full Text :
- https://doi.org/10.1016/j.cplett.2004.09.024