Amino acid functionalization of double-wall carbon nanotubes studied by Raman spectroscopy

2007 ◽  
pp. 4925 ◽  
Author(s):  
Gabriele Marcolongo ◽  
Giorgio Ruaro ◽  
Marina Gobbo ◽  
Moreno Meneghetti
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Amino Acid ◽  
Double Wall

Ion implantation effect on Resonance Raman spectroscopy of double-wall carbon nanotubes

2010 ◽  
Author(s):  
E. C. Moreira ◽  
G. D. Saraiva ◽  
A. G. Souza Filho ◽  
G. Braunstein ◽  
H. Muramatsu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Ion Implantation ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Double Wall

scholarly journals Raman spectroscopy study of heat-treated and boron-doped double wall carbon nanotubes

2009 ◽  
Vol 80 (3) ◽  
Author(s):  
F. Villalpando-Paez ◽  
H. Son ◽  
S. G. Chou ◽  
Ge. G. Samsonidze ◽  
Y. A. Kim ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Spectroscopy Study ◽  
Boron Doped ◽  
Heat Treated ◽  
Double Wall

scholarly journals Chromatographic Length Separation and Photoluminescence Study on DNA-Wrapped Single-Wall and Double-Wall Carbon Nanotubes

2009 ◽  
Vol 2009 ◽  
pp. 1-8 ◽  
Author(s):  
Yuki Asada ◽  
Toshiki Sugai ◽  
Ryo Kitaura ◽  
Hisanori Shinohara
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
High Performance ◽  
Water Soluble ◽  
Size Exclusion ◽  
Photoluminescence Study ◽  
Force Microscopy ◽  
Atomic Force ◽  
Length Separation ◽  
Double Wall

Water-soluble DNA-wrapped single-wall and double-wall carbon nanotubes (DNA-SWNTs, DNA-DWNTs) have been well separated by length incorporating size-exclusion high-performance liquid chromatography (HPLC). The morphology and electronic properties of the size- (length-) separated DNA-SWNTs and -DWNTs are investigated by atomic force microscopy (AFM), photoluminescence (PL), and Raman spectroscopy. By using length-separated DNA-SWNTs and -DWNTs, we have found that PL intensity of the DNA-SWNTs varies sensitively depending not only on the chirality (or diameter) but more importantly on the length of the hybrids.

scholarly journals Resonance Raman spectroscopy in Si and C ion-implanted double-wall carbon nanotubes

2009 ◽  
Vol 80 (15) ◽  
Author(s):  
G. D. Saraiva ◽  
A. G. Souza Filho ◽  
G. Braunstein ◽  
E. B. Barros ◽  
J. Mendes Filho ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Double Wall ◽  
Ion Implanted

scholarly journals Tunable Raman spectroscopy study of CVD and peapod-derived bundled and individual double-wall carbon nanotubes

2010 ◽  
Vol 82 (15) ◽  
Author(s):  
F. Villalpando-Paez ◽  
L. G. Moura ◽  
C. Fantini ◽  
H. Muramatsu ◽  
T. Hayashi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Spectroscopy Study ◽  
Tunable Raman Spectroscopy ◽  
Double Wall

Optical Absorption and Raman Spectroscopy Study of the Fluorinated Double‐Wall Carbon Nanotubes

2006 ◽  
Vol 14 (2-3) ◽  
pp. 233-238 ◽  
Author(s):  
P. N. Gevko ◽  
L. G. Bulusheva ◽  
A. V. Okotrub ◽  
N. F. Yudanov ◽  
I. V. Yushina ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Optical Absorption ◽  
Spectroscopy Study ◽  
Double Wall

Comparative Raman spectroscopy of individual and bundled double wall carbon nanotubes

2010 ◽  
Vol 248 (4) ◽  
pp. 974-979 ◽  
Author(s):  
Pascal Puech ◽  
Sébastien Nanot ◽  
Bertrand Raquet ◽  
Jean-Marc Broto ◽  
Marius Millot ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Double Wall

Identification of inner and outer shells of double-wall carbon nanotubes using high-pressure Raman spectroscopy

2007 ◽  
Vol 76 (11) ◽  
Author(s):  
D. Christofilos ◽  
J. Arvanitidis ◽  
G. A. Kourouklis ◽  
S. Ves ◽  
T. Takenobu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
High Pressure ◽  
Double Wall

scholarly journals Effect of Size of Multiwalled Carbon Nanotubes Dispersed in Gear Oils for Improvement of Tribological Properties

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Kodanda Rama Rao Chebattina ◽  
V. Srinivas ◽  
N. Mohan Rao
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Ball Milling ◽  
Multiwalled Carbon Nanotubes ◽  
Tribological Properties ◽  
Extreme Pressure ◽  
Multiwalled Carbon ◽  
Pristine Mwcnts ◽  
Gear Oil ◽  
The Stability

The aim of the paper is to investigate the effect of size of multiwalled carbon nanotubes (MWCNTs) as additives for dispersion in gear oil to improve the tribological properties. Since long pristine MWCNTs tend to form clusters compromising dispersion stability, they are mildly processed in a ball mill to shorten the length and stabilized with a surfactant before dispersing in lubricant. Investigations are made to assess the effect of ball milling on the size and structure of MWCNTs using electron microscopy and Raman spectroscopy. The long and shortened MWCNTs are dispersed in EP 140 gear oil in 0.5% weight. The stability of the dispersed multiwalled carbon nanotubes is evaluated using light scattering techniques. The antiwear, antifriction, and extreme pressure properties of test oils are evaluated on a four-ball wear tester. It is found that ball milling of MWCNTs has a strong effect on the stability and tribological properties of the lubricant. From Raman spectroscopy, it is found that ball milling time of up to 10 hours did not produce any defects on the surface of MWCNTs. The stability of the lubricant and the antiwear, antifriction, and extreme pressure properties have improved significantly with dispersion shortened MWCNTs. Ball milling for longer periods produces defects on the surface of MWCNTs reducing their advantage as oil additives.

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