Morphology, diameter distribution and Raman scattering measurements of double-walled carbon nanotubes synthesized by catalytic decomposition of methane

2002 ◽  
Vol 359 (3-4) ◽  
pp. 196-202 ◽  
Author(s):  
Wencai Ren ◽  
Feng Li ◽  
Jian Chen ◽  
Shuo Bai ◽  
Hui-Ming Cheng
Keyword(s):  
Carbon Nanotubes ◽  
Raman Scattering ◽  
Catalytic Decomposition ◽  
Diameter Distribution ◽  
Scattering Measurements ◽  
Decomposition Of Methane ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Synthesis of single- and double-walled carbon nanotubes by catalytic decomposition of methane

2003 ◽  
Vol 373 (5-6) ◽  
pp. 475-479 ◽  
Author(s):  
B.C. Liu ◽  
S.C. Lyu ◽  
T.J. Lee ◽  
S.K. Choi ◽  
S.J. Eum ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Decomposition ◽  
Decomposition Of Methane ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

scholarly journals Identification of the constituents of double-walled carbon nanotubes using Raman spectra taken with different laser-excitation energies

2003 ◽  
Vol 18 (5) ◽  
pp. 1251-1258 ◽  
Author(s):  
Feng Li ◽  
S. G. Chou ◽  
Wencai Ren ◽  
J. A. Gardecki ◽  
A. K. Swan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Laser Excitation ◽  
Resonance Raman Spectroscopy ◽  
Catalytic Decomposition ◽  
Radial Breathing Mode ◽  
Excitation Energies ◽  
Double Peak ◽  
Decomposition Of Methane ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Double-walled carbon nanotubes (DWNTs), synthesized by the catalytic decomposition of methane, were explored by resonance Raman spectroscopy using different energies for laser excitation. Based on the radial breathing mode frequencies, the indices of the two layers of a DWNT were approximately assigned, depending on the interlayer separation of the two coaxial layers of the DWNT, which ranged from 0.34 to 0.40 nm. From the tentatively assigned results, it was found that the two walls of the DWNT are not strongly selected by chirality and diameter. The results, however, suggest that, for the tubes that are resonant with the available laser excitation energies, most of the outer layers of the observed DWNTs in our samples are semiconducting, while the inner layers of the observed DWNTs are either semiconducting or metallic based on the assembled DWNTs. The characteristics of the G, D, and G′ band of the DWNTs are discussed, and a double peak feature in the D and G′ band, originating from the inner and outer layers of the DWNTs, is reported.

Raman scattering from double-walled carbon nanotubes

2008 ◽  
Vol 39 (2) ◽  
pp. 134-140 ◽  
Author(s):  
H. Kuzmany ◽  
W. Plank ◽  
R. Pfeiffer ◽  
F. Simon
Keyword(s):  
Carbon Nanotubes ◽  
Raman Scattering ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Large-Scale Synthesis of High-Quality Double-Walled Carbon Nanotubes by Catalytic Decomposition ofn-Hexane

2004 ◽  
Vol 108 (7) ◽  
pp. 2192-2194 ◽  
Author(s):  
Seung Chul Lyu ◽  
Bao Chun Liu ◽  
Su Hwan Lee ◽  
Chong Yun Park ◽  
Hee Kwang Kang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Large Scale ◽  
Catalytic Decomposition ◽  
High Quality ◽  
Large Scale Synthesis ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Large-Scale Synthesis of High-Quality Double-Walled Carbon Nanotubes by Catalytic Decomposition of n-Hexane.

ChemInform ◽  
2004 ◽  
Vol 35 (18) ◽  
Author(s):  
Seung Chul Lyu ◽  
Bao Chun Liu ◽  
Su Hwan Lee ◽  
Chong Yun Park ◽  
Hee Kwang Kang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Large Scale ◽  
Catalytic Decomposition ◽  
High Quality ◽  
Large Scale Synthesis ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes
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