Low-temperature synthesis of single-walled carbon nanotubes with a narrow diameter distribution using size-classified catalyst nanoparticles

2006 ◽  
Vol 422 (4-6) ◽  
pp. 481-487 ◽  
Author(s):  
Daiyu Kondo ◽  
Shintaro Sato ◽  
Yuji Awano
2008 ◽  
Vol 8 (5) ◽  
pp. 2526-2533 ◽  
Author(s):  
Cheng-Hui Weng ◽  
Chao-Shun Yang ◽  
Hsuan Lin ◽  
Chuen-Horng Tsai ◽  
Keh-Chyang Leou

In this work, we present a parametric study on the low temperature synthesis of single-walled carbon nanotubes (SWNTs) in an inductively coupled plasma (ICP) CVD system using dry bi-layered catalytic thin-films (Fe/Al and Ni/Al, deposited by electron-beam evaporation method) as the catalysts. With a low substrate temperature of 550 °C and above, SWNTs were successfully synthesized on both catalysts, as revealed from the characteristic peaks of SWNTs in the micro-Raman spectra. By the reduction of plasma power and the shortening of the process times, the lowest synthesis temperature of SWNTs achieved in our system was approached to 500 °C on Ni/Al catalysts; on the other hands, the lowest temperature for Fe/Al catalysts was 550 °C. Our results suggest that as compared with Fe/Al, Ni/Al is more favorable for plasma-enhanced CVD (PECVD) synthesis of SWNTs at low temperatures. This work can be used for further improvements and better understanding on the production processes of SWNTs by PECVD methods.


2002 ◽  
Vol 360 (3-4) ◽  
pp. 229-234 ◽  
Author(s):  
Shigeo Maruyama ◽  
Ryosuke Kojima ◽  
Yuhei Miyauchi ◽  
Shohei Chiashi ◽  
Masamichi Kohno

2005 ◽  
Vol 44 (4A) ◽  
pp. 1558-1561 ◽  
Author(s):  
Guofang Zhong ◽  
Takayuki Iwasaki ◽  
Kotaro Honda ◽  
Yukio Furukawa ◽  
Iwao Ohdomari ◽  
...  

2015 ◽  
Vol 51 (43) ◽  
pp. 8974-8977 ◽  
Author(s):  
Ranajit Ghosh ◽  
Takahiro Maruyama ◽  
Hiroki Kondo ◽  
Koji Kimoto ◽  
Takuro Nagai ◽  
...  

Single-walled carbon nanotubes with a narrow diameter distribution are grown on graphene layers via chemical vapor deposition.


Sign in / Sign up

Export Citation Format

Share Document