scholarly journals Infrared Spectroscopy of Ultraviolet-Irradiated Carbon Nanotubes

2020 ◽  
Vol 65 (4) ◽  
pp. 336
Author(s):  
I. Ovsiienko ◽  
T. Len ◽  
L. Matzui ◽  
O. Syvolozhskyi ◽  
D. Shpylka ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Infrared Spectroscopy ◽  
Functional Groups ◽  
Uv Irradiation ◽  
Relative Intensity ◽  
Multiwall Carbon Nanotubes ◽  
Short Term ◽  
Spectral Bands ◽  
Functionalization Of Carbon Nanotubes ◽  
Multiwall Carbon

The possibility of using the UV irradiation for a functionalization of carbon nanotubes with different degrees of structural perfection is considered. In investigations, the method of infrared spectroscopy is used. A change in the number of functional groups under the short-term UV irradiation of specimens with multiwall carbon nanotubes is estimated by a change in the relative intensity of the IR spectral bands corresponding to vibrations of the functional groups in comparison with the relative intensity of the band corresponding to vibrations of the carbon atoms in graphite.

Work Functions and Surface Functional Groups of Multiwall Carbon Nanotubes

1999 ◽  
Vol 103 (38) ◽  
pp. 8116-8121 ◽  
Author(s):  
Hiroki Ago ◽  
Thomas Kugler ◽  
Franco Cacialli ◽  
William R. Salaneck ◽  
Milo S. P. Shaffer ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Functional Groups ◽  
Multiwall Carbon Nanotubes ◽  
Surface Functional Groups ◽  
Work Functions ◽  
Multiwall Carbon

Sorption of Aqueous Zn[II] and Cd[II] by Multiwall Carbon Nanotubes: The Relative Roles of Oxygen-Containing Functional Groups and Graphenic Carbon

Langmuir ◽  
2010 ◽  
Vol 26 (2) ◽  
pp. 967-981 ◽  
Author(s):  
Hyun-Hee Cho ◽  
Kevin Wepasnick ◽  
Billy A. Smith ◽  
Fazlullah K. Bangash ◽  
D. Howard Fairbrother ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Functional Groups ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

scholarly journals Impact of UV irradiation on multiwall carbon nanotubes in nanocomposites: Formation of entangled surface layer and mechanisms of release resistance

Carbon ◽  
2017 ◽  
Vol 116 ◽  
pp. 191-200 ◽  
Author(s):  
Tinh Nguyen ◽  
Elijah J. Petersen ◽  
Bastien Pellegrin ◽  
Justin M. Gorham ◽  
Thomas Lam ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Layer ◽  
Uv Irradiation ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

Surface Functionalization of Carbon Nanotubes and Compressive Strength of MWCNTs-OPC

2012 ◽  
Vol 511 ◽  
pp. 171-174 ◽  
Author(s):  
Fu Xia Wang ◽  
Yu Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Surface Functionalization ◽  
High Performance ◽  
Multiwall Carbon Nanotubes ◽  
Reinforcing Effect ◽  
Cement Based Materials ◽  
Highly Dispersed ◽  
Functionalization Of Carbon Nanotubes ◽  
Multiwall Carbon

Due to their remarkable mechanical properties, carbon nanotubes (CNTs) are considered to be one of the most promising reinforcing materials for the next generation of high-performance cementitious composites. However, the major problem is the highly attractive van der Waals forces between CNTs, which create coherent agglomerates that prove difficult to disperse in cement based materials and reduce the fluidity of the fresh mixture. In this study, the reinforcing effect of highly dispersed multiwall carbon nanotubes (MWCNTs) at ratios of 0.05, 0.1, 0.15， 0.2 and 0.25wt.% of cement has been investigated. The results show that small amount of effectively dispersed MWCNTs can significantly increase the strength of the cementitious

Boehmite Nanofibers as a Dispersant for Nanotubes in an Aqueous Sol

2018 ◽  
Author(s):  
Gen Hayase
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Aqueous Solutions ◽  
High Aspect Ratio ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon ◽  
Nanotube Films

By exploiting the dispersibility and rigidity of boehmite nanofibers (BNFs) with a high aspect ratio of 4 nm in diameter and several micrometers in length, multiwall-carbon nanotubes (MWCNTs) were successfully dispersed in aqueous solutions. In these sols, the MWCNTs were dispersed at a ratio of about 5–8% relative to BNFs. Self-standing BNF–nanotube films were also obtained by filtering these dispersions and showing their functionality. These films can be expected to be applied to sensing materials.

Sign in / Sign up

Export Citation Format

Share Document