The chemistry of premixed flame synthesis of carbon nanotubes using supported catalysts

2002 ◽  
Vol 29 (1) ◽  
pp. 1079-1085 ◽  
Author(s):  
Randall L. Vander Wal ◽  
Lee J. Hall ◽  
Gordon M. Berger
Keyword(s):  
Carbon Nanotubes ◽  
Supported Catalysts ◽  
Premixed Flame ◽  
Flame Synthesis ◽  
Synthesis Of Carbon Nanotubes

Influence of Mo Content of Fe/Mo/Al2O3 on Flame Synthesis of Carbon Nanotubes

2012 ◽  
Vol 486 ◽  
pp. 8-11
Author(s):  
Yuan Yuan ◽  
Bao Min Sun ◽  
Xiao Tian Wang ◽  
Yang Wang ◽  
Yong Hong Guo
Keyword(s):  
Carbon Nanotubes ◽  
Critical Role ◽  
Molar Ratio ◽  
Flame Synthesis ◽  
Products Analysis ◽  
Series Of Experiments ◽  
Mo Content ◽  
Synthesis Of Carbon Nanotubes ◽  
The Impact

Catalysts play a critical role in the synthesis of carbon nanotubes. In this paper, we design a series of experiments to explore the impact of contents of Mo on the products. Analysis show, when the molar ratio of Fe: Mo: Al is 1: 0.2: 16, the carbon nanotubes show the best yields and quality.

Surface area and thermal stability effect of the MgO supported catalysts for the synthesis of carbon nanotubes

2008 ◽  
Vol 18 (47) ◽  
pp. 5738 ◽  
Author(s):  
Yang Xu ◽  
Zhongrui Li ◽  
Enkeleda Dervishi ◽  
Viney Saini ◽  
Jingbiao Cui ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Surface Area ◽  
Supported Catalysts ◽  
Synthesis Of Carbon Nanotubes ◽  
Stability Effect

Effect of Hydrogen on V-Type Pyrolysis Flame Synthesis of Carbon Nanotubes

2011 ◽  
Vol 221 ◽  
pp. 545-549
Author(s):  
Yuan Chao Liu ◽  
Bao Min Sun ◽  
Zhao Yong Ding
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Monoxide ◽  
Mass Flow ◽  
Experimental System ◽  
Catalyst Particle ◽  
Sampling Time ◽  
High Yield ◽  
Flame Synthesis ◽  
Novel Method ◽  
Synthesis Of Carbon Nanotubes

Synthesis of carbon nanotubes from V-type pyrolysis flame is a kind of novel method. It needs more simple equipments. 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 is acted as catalyst. The sampling time was 5 minutes. This study aims to find the influence rule of hydrogen in synthesis of carbon nanotubes from the V-type pyrolysis flame. 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. Hydrogen played extremely important role in the flame synthesis of carbon nanotubes. The effect of hydrogen is to improve the pyrolysis of carbon monoxide and to decompose the carbide on the surface of catalyst particle. The flow or concentration of hydrogen will directly decide the surface roughness of carbon nanotubes from the pyrolysis flame. The carbon nanotubes with "carbon tumour" will appear when the relative flow of hydrogen in the reaction gases is too little. Not only the mass flow of hydrogen is important, but also the ratio of mass flow between carbon monoxide and hydrogen is very important according to the experiment results.

Flame Synthesis of Carbon Nanotubes using Camphor and its Characterization

2011 ◽  
Vol 3 (3) ◽  
pp. 170-179 ◽  
Author(s):  
B. C. Yadav ◽  
Ritesh Kumar ◽  
Richa Srivastava ◽  
Tripti Shukla
Keyword(s):  
Carbon Nanotubes ◽  
Flame Synthesis ◽  
Synthesis Of Carbon Nanotubes

Effect of fuel and oxygen concentration toward catalyst encapsulation in water-assisted flame synthesis of carbon nanotubes

2020 ◽  
Vol 220 ◽  
pp. 272-287 ◽  
Author(s):  
Norikhwan Hamzah ◽  
Mohd Fairus Mohd Yasin ◽  
Mohd Zamri Mohd Yusop ◽  
Muhammad Aniq Shazni Mohammad Haniff ◽  
Mohd Faizal Hasan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Concentration ◽  
Flame Synthesis ◽  
Synthesis Of Carbon Nanotubes

Flame synthesis of carbon nanotubes in a wall stagnation flow

2005 ◽  
Vol 403 (1-3) ◽  
pp. 158-162 ◽  
Author(s):  
Shunpei Nakazawa ◽  
Takeshi Yokomori ◽  
Masahiko Mizomoto
Keyword(s):  
Carbon Nanotubes ◽  
Flame Synthesis ◽  
Stagnation Flow ◽  
Synthesis Of Carbon Nanotubes

Synthesis of carbon nanotubes using supported catalysts modified by lanthanum species

Carbon ◽  
2002 ◽  
Vol 40 (13) ◽  
pp. 2497-2502 ◽  
Author(s):  
Cheng C Tang ◽  
Xiaoxia Ding ◽  
Zongwei Gan ◽  
Jianming Gao ◽  
Xintang Huang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Supported Catalysts ◽  
Synthesis Of Carbon Nanotubes
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