Polymerisation of 1-iodohexa-1,3,5-triyne and hexa-1,3,5-triyne: a new synthesis of carbon nanotubes at low temperatures

2000 ◽  
pp. 737-738 ◽  
Author(s):  
Jaromír Hlavatý ◽  
Ladislav Kavan ◽  
Naoto Kasahara ◽  
Asao Oya
Keyword(s):  
Carbon Nanotubes ◽  
Low Temperatures ◽  
New Synthesis ◽  
Synthesis Of Carbon Nanotubes

In Situ Synthesis of CNTs/Mg Composite Powders by CVD at Low Temperatures

2012 ◽  
Vol 588-589 ◽  
pp. 1681-1684
Author(s):  
Fu Jun Sun ◽  
Chun Sheng Shi ◽  
En Zuo Liu ◽  
Chun Nian He ◽  
Nai Qin Zhao
Keyword(s):  
Mechanical Property ◽  
Carbon Nanotubes ◽  
Vapor Deposition ◽  
Low Temperatures ◽  
Chemical Vapor ◽  
In Situ Synthesis ◽  
Composite Powders ◽  
Co Catalyst ◽  
Synthesis Of Carbon Nanotubes

The emphasis of this study was in-situ synthesis of carbon nanotubes (CNTs) on Mg matrix at 480°C. The process involves homogeneous deposition of Co catalyst onto Mg by deposition-precipitation route with low Co content (1.0 wt.%) and in situ synthesis of CNTs by chemical vapor deposition. The morphologies and microstructure of the as-obtained CNTs/Mg composite powders was characterized by SEM, TEM, Raman spectrum, and XRD. The results indicated that CNTs were well graphitized and uniformly distributed on the surface of Mg powders, which would be beneficial to the mechanical property of CNTs/Mg composites.

scholarly journals Synthesis of carbon nanotubes by high current divergent anode-channel plasma torch

2014 ◽  
Vol 550 ◽  
pp. 012023 ◽  
Author(s):  
R H Amirov ◽  
E Kh Isakaev ◽  
M B Shavelkina ◽  
T B Shatalova
Keyword(s):  
Carbon Nanotubes ◽  
Plasma Torch ◽  
High Current ◽  
Synthesis Of Carbon Nanotubes

Influence Analysis of Sampling Time for Synthesis of Carbon Nanotubes in the V-Type Pyrolysis Flame

2011 ◽  
Vol 221 ◽  
pp. 235-239 ◽  
Author(s):  
Yuan Chao Liu ◽  
Bao Min Sun ◽  
Zhao Yong Ding
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Experimental System ◽  
Growth Period ◽  
Sampling Time ◽  
High Yield ◽  
Spray Pyrolysis Method ◽  
Transmission Electron ◽  
Novel Method ◽  
Synthesis Of Carbon Nanotubes

Synthesis of carbon nanotubes from V-type pyrolysis flame is a kind of novel method. It needs simple laboratory equipments and normal atmosphere pressure. The V-type pyrolysis flame experimental system is introduced. Carbon source is the carbon monoxide and heat source is from acetylene/air premixed flame. Pentacarbonyl iron, served as catalyst, is transported by spray- pyrolysis method into the flame. The carbon nanotubes were characterized by scanning electron microscope and transmission electron microscope. This study aims to find the formation rule of carbon nanotubes from the V-type pyrolysis flame in different sampling times. The carbon nanotubes with less impurity and high yield were captured successfully in the V-type pyrolysis flame. The diameter of carbon nanotubes was approximate between 10nm and 20nm, and its length was dozens of microns. When the sampling time was below 3 minutes, the growth of carbon nanotubes came into the preparation growth period. The length of the carbon nanotubes increased gradually and the diameter had no obvious change with the extension of sampling time. When the sampling time was continued to the 5th minute, the growth of carbon nanotubes came into the exuberant growth period. The carbon nanotubes growth was finished within 5minutes. Longer sampling time was meaningless after the carbon nanotubes formation.

Synthesis of carbon nanotubes filled with Fe3C nanowires by CVD with titanate modified palygorskite as catalyst

Carbon ◽  
2003 ◽  
Vol 41 (10) ◽  
pp. 1965-1970 ◽  
Author(s):  
Jipeng Cheng ◽  
Xiaobin Zhang ◽  
Fu Liu ◽  
Jiangping Tu ◽  
Ying Ye ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Synthesis Of Carbon Nanotubes ◽  
Modified Palygorskite
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