Controlled Synthesis of Vertically Aligned Hematite on Conducting Substrate for Photoelectrochemical Cells: Nanorods versus Nanotubes

2011 ◽  
Vol 3 (6) ◽  
pp. 1852-1858 ◽  
Author(s):  
Aiming Mao ◽  
Kahee Shin ◽  
Jung Kyu Kim ◽  
Dong Hwan Wang ◽  
Gui Young Han ◽  
...  
Keyword(s):  
Photoelectrochemical Cells ◽  
Controlled Synthesis ◽  
Conducting Substrate ◽  
Vertically Aligned

Structure Controlled Synthesis of Vertically Aligned Carbon Nanotubes Using Thermal Chemical Vapor Deposition Process

2010 ◽  
Vol 133 (3) ◽  
Author(s):  
Myung Gwan Hahm ◽  
Young-Kyun Kwon ◽  
Ahmed Busnaina ◽  
Yung Joon Jung
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Large Scale ◽  
Chemical Vapor ◽  
Controlled Synthesis ◽  
Full Potential ◽  
Thermal Chemical Vapor Deposition ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes

Due to their unique one-dimensional nanostructure along with excellent mechanical, electrical, and optical properties, carbon nanotubes (CNTs) become a promising material for diverse nanotechnology applications. However, large-scale and structure controlled synthesis of CNTs still have many difficulties due to the lack of understanding of the fundamental growth mechanism of CNTs, as well as the difficulty of controlling atomic-scale physical and chemical reactions during the nanotube growth process. Especially, controlling the number of graphene wall, diameter, and chirality of CNTs are the most important issues that need to be solved to harness the full potential of CNTs. Here we report the large-scale selective synthesis of vertically aligned single walled carbon nanotubes (SWNTs) and double walled carbon nanotubes (DWNTs) by controlling the size of catalyst nanoparticles in the highly effective oxygen assisted thermal chemical vapor deposition (CVD) process. We also demonstrate a simple but powerful strategy for synthesizing ultrahigh density and diameter selected vertically aligned SWNTs through the precise control of carbon flow during a thermal CVD process.

Number of Walls Controlled Synthesis of Millimeter-Long Vertically Aligned Brushlike Carbon Nanotubes

2007 ◽  
Vol 111 (5) ◽  
pp. 1929-1934 ◽  
Author(s):  
Supriya Chakrabarti ◽  
Hideki Kume ◽  
Lujun Pan ◽  
Takeshi Nagasaka ◽  
Yoshikazu Nakayama
Keyword(s):  
Carbon Nanotubes ◽  
Controlled Synthesis ◽  
Vertically Aligned

Vertically aligned carbon nanofibers and related structures: Controlled synthesis and directed assembly

2005 ◽  
Vol 97 (4) ◽  
pp. 041301 ◽  
Author(s):  
A. V. Melechko ◽  
V. I. Merkulov ◽  
T. E. McKnight ◽  
M. A. Guillorn ◽  
K. L. Klein ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Directed Assembly ◽  
Controlled Synthesis ◽  
Vertically Aligned ◽  
Vertically Aligned Carbon Nanofibers

Fabrication of a Vertically Aligned Ferroelectric Perovskite Nanowire Array on Conducting Substrate

2010 ◽  
Vol 22 (16) ◽  
pp. 4806-4813 ◽  
Author(s):  
Badro Im ◽  
Hwichan Jun ◽  
Kyung Hee Lee ◽  
Sung-Ho Lee ◽  
Il Kyu Yang ◽  
...  
Keyword(s):  
Nanowire Array ◽  
Conducting Substrate ◽  
Vertically Aligned ◽  
Ferroelectric Perovskite

Tailored transport through vertically aligned carbon nanofibre membranes; controlled synthesis, modelling, and passive diffusion experiments

2005 ◽  
Vol 16 (12) ◽  
pp. 3101-3109 ◽  
Author(s):  
J D Fowlkes ◽  
B L Fletcher ◽  
E D Hullander ◽  
K L Klein ◽  
D K Hensley ◽  
...  
Keyword(s):  
Passive Diffusion ◽  
Controlled Synthesis ◽  
Carbon Nanofibre ◽  
Vertically Aligned
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