Thermal conductivities of single-walled carbon nanotubes calculated from the complete phonon dispersion relations

2007 ◽  
Vol 76 (13) ◽  
Author(s):  
Yunfeng Gu ◽  
Yunfei Chen
Keyword(s):  
Carbon Nanotubes ◽  
Phonon Dispersion ◽  
Single Walled Carbon Nanotubes ◽  
Dispersion Relations ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Phonon Dispersion Relations ◽  
Thermal Conductivities

Current treatment of bulk single walled carbon nanotubes to heal defects without structural change for increased electrical and thermal conductivities

Nanoscale ◽  
2015 ◽  
Vol 7 (19) ◽  
pp. 8707-8714 ◽  
Author(s):  
Naoyuki Matsumoto ◽  
Azusa Oshima ◽  
Motoo Yumura ◽  
Don N. Futaba ◽  
Kenji Hata
Keyword(s):  
Carbon Nanotubes ◽  
Structural Change ◽  
Single Walled Carbon Nanotubes ◽  
Electrical Current ◽  
Current Treatment ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Thermal Conductivities

By applying electrical current with heat, we succeeded in improving the graphitization of single walled carbon nanotubes (SWCNTs) without increasing the diameter and wall number.

Molecular Dynamics Simulation of Thermal Conductivity of Single-Walled Carbon Nanotubes Filled With Water

2008 ◽  
Author(s):  
Li Deng ◽  
Yunfei Chen ◽  
Ruiming Qian ◽  
Juekuan Yang ◽  
Kedong Bi
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Dynamics ◽  
Single Walled Carbon Nanotubes ◽  
Phonon Transport ◽  
Dynamics Simulation ◽  
Tube Length ◽  
Water Molecules ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Thermal Conductivities

Thermal conductivities for single-walled carbon nanotubes (SWNTs) filled with water are calculated with non-equilibrium molecular dynamics (NEMD) simulation method. Simulation results demonstrate the thermal conduction for the tube filed with water is better than the pure nanotube at the same conditions. It is believed the translational movement of the water molecules along the tube axis helps carry energy from the hot bath to the heat sinks, which results in the increase of the thermal conductivities. In addition, with the introduction of the water molecules into the nanotube, the additional interaction between the carbon atoms and the water molecules provide extra channels for phonon transport, which further intensifies the energy transport along the nanotubes. The effects of the temperature variation and the tube length on the thermal conductivities are also analyzed in this paper.

Purity Evaluation of Single-Walled Carbon Nanotubes Using Thermogravimetric Analysis

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermogravimetric Analysis ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Purity Evaluation ◽  
Walled Carbon Nanotubes
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