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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 87-92 |
| Number of pages | 6 |
| Journal | Chemical Physics Letters |
| Volume | 398 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Nov 1 2004 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Thermal stability and structural changes of double-walled carbon nanotubes by heat treatment. / Kim, Y. A.; Muramatsu, H.; Hayashi, T.; Endo, M.; Terrones, M.; Dresselhaus, M. S.
In: Chemical Physics Letters, Vol. 398, No. 1-3, 01.11.2004, p. 87-92.Research output: Contribution to journal › Article
TY - JOUR
T1 - Thermal stability and structural changes of double-walled carbon nanotubes by heat treatment
AU - Kim, Y. A.
AU - Muramatsu, H.
AU - Hayashi, T.
AU - Endo, M.
AU - Terrones, M.
AU - Dresselhaus, M. S.
PY - 2004/11/1
Y1 - 2004/11/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=5744242835&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2004.09.024
DO - 10.1016/j.cplett.2004.09.024
M3 - Article
AN - SCOPUS:5744242835
VL - 398
SP - 87
EP - 92
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 1-3
ER -