scholarly journals Single-step synthesis and magnetic separation of graphene and carbon nanotubes in arc discharge plasmas

Nanoscale ◽  
2010 ◽  
Vol 2 (10) ◽  
pp. 2281 ◽  
Author(s):  
O. Volotskova ◽  
I. Levchenko ◽  
A. Shashurin ◽  
Y. Raitses ◽  
K. Ostrikov ◽  
...  
2007 ◽  
Vol 515 (9) ◽  
pp. 4262-4265 ◽  
Author(s):  
T. Okada ◽  
T. Kaneko ◽  
R. Hatakeyama

Carbon ◽  
2009 ◽  
Vol 47 (7) ◽  
pp. 1708-1714 ◽  
Author(s):  
A. Pandurangan ◽  
Cedric Morin ◽  
Dali Qian ◽  
Rodney Andrews ◽  
Mark Crocker

Carbon ◽  
2011 ◽  
Vol 49 (14) ◽  
pp. 4792-4800 ◽  
Author(s):  
Liping Huang ◽  
Bin Wu ◽  
Jianyi Chen ◽  
Yunzhou Xue ◽  
Yunqi Liu ◽  
...  

2001 ◽  
Vol 40 (Part 1, No. 5A) ◽  
pp. 3414-3418 ◽  
Author(s):  
Hirofumi Takikawa ◽  
Yoshitaka Tao ◽  
Ryuichi Miyano ◽  
Tateki Sakakibara ◽  
Xinluo Zhao ◽  
...  

2014 ◽  
Vol 137 (1) ◽  
Author(s):  
Alaa Mohamed ◽  
T. A. Osman ◽  
A. Khattab ◽  
M. Zaki

Carbon nanotubes (CNTs) with 10 nm average diameter and 5 μm in length were synthesized by electric arc discharge. The morphology and structure of CNTs were characterized by high resolution transmission electron microscopy (HRTEM) and X-ray powder diffraction. The tribological properties of CNTs as an additive on lithium grease were evaluated with a four ball tester. The results show that the grease with CNTs exhibit good performance in antiwear (AW) and decrease the wear scare diameter (WSD) about 63%, decrease friction reduction about 81.5%, and increase the extreme pressure (EP) properties and load carrying capacity about 52% with only 1% wt. of CNTs added to lithium grease. The action mechanism was estimated through analysis of the worn surface with a scanning electron microscope (SEM) and energy dispersive X-ray (EDX). The results indicate that a boundary film mainly composed of CNTs, Cr, iron oxide, and other organic compounds was formed on the worn surface during the friction process.


Author(s):  
Manisha Vijay Makwana ◽  
Ajay M Patel

: MWCNTs are elongated cylindrical nanoobjects made of sp2 carbon. They have a diameter of 3–30 nm and can grow to be several centimetres long. Therefore, their aspect ratio can range between 10 to 10 million. Carbon nanotubes are the foundation of nanotechnology. It is an exceptionally fascinating material. CNTs possess excellent properties such as mechanical, electrical, thermal, high adsorption, outstanding stiffness, high strength and low density with a high aspect ratio. These properties can be useful in the fabrication of revolutionary smart nano materials. Demand for lighter and more robust nano materials in different applications of nanotechnology is increasing every day. Various synthesis techniques for the fabrication of MWCNTs, such as CVD, Arc discharge, flame synthesis, laser ablation, and spray pyrolysis, are discussed in this review article, as are their recent applications in a variety of significant fields. The first section presents a brief introduction of CNTs, then the descriptions of synthesis methods and various applications of MWCNTs in the field of energy storage and conversion, biomedical, water treatment, drug delivery, biosensors, bucky papers and resonance-based biosensors are introduced in the second section. Due to their improved electrical, mechanical, and thermal properties, MWCNTs have been extensively used in the manufacturing and deployment of flexible sensors.


2014 ◽  
Vol 292 ◽  
pp. 39-43 ◽  
Author(s):  
Takuya Sagara ◽  
Satoshi Kurumi ◽  
Kaoru Suzuki

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