Growth Kinetics of 0.5 cm Vertically Aligned Single-Walled Carbon Nanotubes

2007 ◽  
Vol 111 (8) ◽  
pp. 1907-1910 ◽  
Author(s):  
Zhong ◽  
Takayuki Iwasaki ◽  
John Robertson ◽  
Hiroshi Kawarada
Keyword(s):  
Carbon Nanotubes ◽  
Growth Kinetics ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes ◽  
Kinetics Of

scholarly journals Growth kinetics of single-walled carbon nanotubes with a (2n, n) chirality selection

2019 ◽  
Vol 5 (12) ◽  
pp. eaav9668 ◽  
Author(s):  
Maoshuai He ◽  
Xiao Wang ◽  
Shuchen Zhang ◽  
Hua Jiang ◽  
Filippo Cavalca ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Growth Kinetics ◽  
Single Walled Carbon Nanotubes ◽  
Atomic Scale ◽  
Ex Situ ◽  
Selective Synthesis ◽  
Chemical Vapor Deposition Growth ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Kinetics Of

The growth kinetics play key roles in determining the chirality distribution of the grown single-walled carbon nanotubes (SWCNTs). However, the lack of comprehensive understandings on the SWCNT’s growth mechanism at the atomic scale greatly hinders SWCNT chirality-selective synthesis. Here, we establish a general model, where the dislocation theory is a specific case, to describe the etching agent–dependent growth kinetics of SWCNTs on solid catalyst particles. In particular, the growth kinetics of SWCNTs in the absence of etching agent is validated by both in situ environmental transmission electron microscopy and ex situ chemical vapor deposition growth of SWCNTs. On the basis of the new theory of SWCNT’s growth kinetics, we successfully explained the selective growth of (2n, n) SWCNTs. This study provides another degree of freedom for SWCNT controlled synthesis and opens a new strategy to achieve chirality-selective synthesis of (2n, n) SWCNTs using solid catalysts.

Investigation of Optimal Parameters for Oxide-Assisted Growth of Vertically Aligned Single-Walled Carbon Nanotubes

2009 ◽  
Vol 113 (10) ◽  
pp. 4125-4133 ◽  
Author(s):  
Cary L. Pint ◽  
Sean T. Pheasant ◽  
A. Nicholas G. Parra-Vasquez ◽  
Charles Horton ◽  
Yaqiong Xu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Optimal Parameters ◽  
Single Walled Carbon ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes

The Kinetics of Dye Encapsulation in Single-Walled Carbon Nanotubes Probed By Statistical Raman Imaging

2021 ◽  
Vol MA2021-01 (11) ◽  
pp. 572-572
Author(s):  
Charlotte Allard ◽  
Etienne Gaufres ◽  
Patrick Desjardins ◽  
Richard Martel
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Raman Imaging ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Kinetics Of

Deposition of Various Metals on Vertically-Aligned Single-Walled Carbon Nanotubes

2007 ◽  
Author(s):  
Kei Ishikawa ◽  
Hai Duong ◽  
Junichiro Shiomi ◽  
Shigeo Maruyama
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Scanning Electron Microscopy ◽  
Cohesive Energy ◽  
Layer Structure ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes ◽  
Scanning Electron

Evaporation of different metals (Au, Ti, Al and Pd) onto Vertically-Aligned Single-Walled Carbon Nanotubes (VASWNT) has been studied. Observations through Scanning Electron Microscopy (SEM) showed a clear metal-dependence of the deposition layer structure on top of the VASWNT, reflecting the variation of wettability and cohesive energy of each metal. These characteristics also influence the structures of the metal penetrated through the top surface into VASWNT film, where metal forms particles inside VASWNT film except for Ti. A simple annealing technique to remove metals penetrated in the SWNT films is demonstrated. Some peculiar morphologies found during the processes are also presented.

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