Multiwalled Carbon Nanotube Forest Grown via Chemical Vapor Deposition from Iron Catalyst Nanoparticles, by XPS

2013 ◽  
Vol 20 (1) ◽  
pp. 62-67 ◽  
Author(s):  
David S. Jensen ◽  
Supriya S. Kanyal ◽  
Nitesh Madaan ◽  
Michael A. Vail ◽  
Andrew E. Dadson ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Iron Catalyst ◽  
Chemical Vapor ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Catalyst Nanoparticles

Compound growth and microstructure of carbon nanotube

2003 ◽  
Vol 18 (10) ◽  
pp. 2459-2463 ◽  
Author(s):  
Zaoli Zhang ◽  
Lian Ouyang ◽  
Zujin Shi ◽  
Zhennan Gu
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Multiwalled Carbon ◽  
Catalyst Nanoparticles ◽  
Single Walled Carbon Nanotube ◽  
Fe Catalyst ◽  
Transmission Electron

The compound growth of single-walled carbon nanotube (SWCNT) and multiwalled carbon nanotube (MWCNT), which formed a nanotube cable, was achieved by the chemical vapor deposition of natural gas on an Fe catalyst supported on SiO2–Al2O3 hybrid materials at 950 °C. The microstructure of nanotubes was characterized by high-resolution transmission electron microscopy (HRTEM). The SWCNTs encapsulated inside MWCNTs can be two, three, or even more in quantity with a diameter range from 1.0 nm to 2.0 nm. The diameter of SWCNT is controlled by the size of the catalyst nanoparticles. Some bundles of SWCNT and double-walled nanotubes were also found. The possible mechanism of compound growth is briefly discussed.

scholarly journals Structure transformation by sp2 hydrocarbon assisted carbon nanotube growth

RSC Advances ◽  
2018 ◽  
Vol 8 (45) ◽  
pp. 25815-25818 ◽  
Author(s):  
Sook Young Moon ◽  
Woo Sik Kim ◽  
Chung Soo Kim
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Species Composition ◽  
Vapor Deposition ◽  
Iron Catalyst ◽  
Chemical Vapor ◽  
Structure Transformation ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth

In this study, we investigated the effect of hydrocarbon species composition on carbon nanotube (CNT) growth using an iron catalyst by chemical vapor deposition.

Synthesis of Carbon, Silicon, and Boron-nitride Nanostructures via Microwave Plasma Enhanced Chemical Vapor Deposition

2000 ◽  
Vol 633 ◽  
Author(s):  
Hongtao Cui ◽  
Wei Liu ◽  
Brian R. Stoner
Keyword(s):  
Chemical Vapor Deposition ◽  
Silicon Nitride ◽  
Boron Nitride ◽  
Vapor Deposition ◽  
Microwave Plasma ◽  
Iron Catalyst ◽  
Chemical Vapor ◽  
Multiwalled Carbon ◽  
X Ray ◽  
Electron Microscopies

AbstractCarbon, silicon nitride and boron nitride nanostructures were synthesized using microwave plasma enhanced chemical vapor deposition. Both scanning and transmission electron microscopies and x-ray diffraction were used to observe the morphology and structures while energy dispersive x-ray was used to determine the composition of the nanostructured materials. Bamboo-like multiwalled carbon nanotube structures were observed while silicon nitride showed novel needle-like solid structures. All materials were deposited using a thin film iron catalyst seeded on either silicon with reactive plasma gases containing either a mixture of methane and ammonia or ammonia. A general discussion of the nucleation and growth mechanisms for the various materials will also be included.

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