Synthesis of High-Quality, Double-Walled Carbon Nanotubes in a Fluidized Bed Reactor

2009 ◽  
Vol 32 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Y. Liu ◽  
W. Z. Qian ◽  
Q. Zhang ◽  
G. Q. Ning ◽  
G. H. Luo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
High Quality ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Production of high quality single-walled carbon nanotubes in a nano-agglomerated fluidized bed reactor

2003 ◽  
Vol 785 ◽  
Author(s):  
Qixiang Wang ◽  
Guoqing Ning ◽  
Fei Wei ◽  
Guohua Luo
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Fluidized Bed ◽  
Single Walled Carbon Nanotubes ◽  
Fluidized Bed Reactor ◽  
Hydrogen Gas ◽  
Synthesis Methods ◽  
High Quality ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

ABSTRACTSSingle-walled carbon nanotubes (SWNTs) have attracted much attention due to their unique structural, mechanical, chemical, and electrical properties. Catalytic chemical vapor deposition (CCVD) through decomposition of hydrocarbons is one of the most challenging synthesis methods to produce SWNTs in large scale. In this paper, high quality SWNTs prepared in a nano-agglomerated fluidized bed reactor (NAFBR) was reported. The reactor is a vertical quartz tube with the inner diameter of about 50 mm. Catalysts nanoparticles used for the production of SWNTs were prepared with Fe metal nanoparticles carried on the surface of MgO. About 150g catalysts powders were loaded on the gas distribution grid. The reaction temperature was controlled at not less than 1123 K. The carrier gas of argon was used to maintain turbulent fluidization of the catalysts powders in FBR. The hydrogen gas was used to reduce the catalysts and to synergize the growth of SWNTs with methane. The powder products were spherical agglomerates of SWNTs bundles tangling with the catalysts particles. By optimizing the process parameters of CCVD, the products of SWNTs with the diameter about 0.9 ∼ 1.8 nm were prepared, without any multi-walled carbon nanotubes (MWNTs) or amorphous carbon. The microstructure of SWNTs products were characterized by the methods of high resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), Raman spectra, etc. The NAFBR is a commercially viable (effective and continuous production at a low cost) process for the production of SWNTs.

Low-Cost Catalyst Ink for Simple Patterning and Growth of High-Quality Single- and Double-Walled Carbon Nanotubes

2020 ◽  
Vol 12 (10) ◽  
pp. 11898-11906
Author(s):  
Simon G. King ◽  
Liam McCafferty ◽  
Mehmet O. Tas ◽  
Kaspar Snashall ◽  
Jeng Shiung Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Low Cost ◽  
High Quality ◽  
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

scholarly journals Synthesis of High-Quality Single- and Double-Walled Carbon Nanotubes on Fe/MgO Catalysts

10.5772/64030 ◽  
2016 ◽  
Vol 6 ◽  
pp. 38 ◽  
Author(s):  
Mehran B. Kashi ◽  
Roya Aghababazadeh ◽  
Hossein Arabi ◽  
Alireza Mirhabibi
Keyword(s):  
Carbon Nanotubes ◽  
High Quality ◽  
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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