Purification of Single-Walled Carbon Nanotubes Using a Supercritical Fluid Extraction Method

2007 ◽  
Vol 111 (35) ◽  
pp. 13007-13012 ◽  
Author(s):  
Joanna S. Wang ◽  
Chien M. Wai ◽  
Kenichi Shimizu ◽  
Frank Cheng ◽  
John J. Boeckl ◽  
...  
2021 ◽  
Vol 21 (2) ◽  
pp. 1042-1047
Author(s):  
Xiaowei Li ◽  
Wenbo Zhao ◽  
Dong Zhao ◽  
Hongyan Jing

Single walled carbon nanotubes have special chemical and physical properties, at the same time, they have the advantage of macro maneuverability in maneuverability, so they have the potential of multi-functional applications. At present, composite materials, super capacitors and corresponding personal care products based on carbon nanotubes are widely used in all aspects of people’s lives, and these products have obvious functional advantages. In this paper, based on the application of single-walled carbon nanotubes technology in personal care products, the separation and purification of ginsenoside pods, the raw material of high-end washing and care products, was studied. In order to enhance the conductivity and tensile strength of SWNTs, this paper innovatively introduces the purification method of current acid treatment to enhance the performance of SWNTs. Based on the improved single-walled carbon nanotubes technology, the extraction efficiency of the optimized single-walled carbon nanotubes was analyzed. In the end of this paper, the optimized extraction method of ginsenoside pods from SWNTs is compared with the traditional extraction method. The experimental results show that SWNTs has obvious time efficiency advantage.


2019 ◽  
Vol 55 (18) ◽  
pp. 2636-2639 ◽  
Author(s):  
W. Huang ◽  
F. Toshimitsu ◽  
K. Ozono ◽  
M. Matsumoto ◽  
A. Borah ◽  
...  

Flavin extraction method realized an improved power factor by easy removal of the dispersant from semiconducting SWNT sheet.


2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  

2012 ◽  
Vol 2 (2) ◽  
pp. 200-209 ◽  
Author(s):  
Jurgen Bachl ◽  
Thimo Huber ◽  
Dennis Kuhbeck ◽  
Eva-Maria Schon ◽  
Gabriele Brunner ◽  
...  

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3808 ◽  
Author(s):  
Blazej Podlesny ◽  
Bogumila Kumanek ◽  
Angana Borah ◽  
Ryohei Yamaguchi ◽  
Tomohiro Shiraki ◽  
...  

Single-walled carbon nanotubes (SWCNTs) remain one of the most promising materials of our times. One of the goals is to implement semiconducting and metallic SWCNTs in photonics and microelectronics, respectively. In this work, we demonstrated how such materials could be obtained from the parent material by using the aqueous two-phase extraction method (ATPE) at a large scale. We also developed a dedicated process on how to harvest the SWCNTs from the polymer matrices used to form the biphasic system. The technique is beneficial as it isolates SWCNTs with high purity while simultaneously maintaining their surface intact. To validate the utility of the metallic and semiconducting SWCNTs obtained this way, we transformed them into thin free-standing films and characterized their thermoelectric properties.


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