Theoretical vibrational optical activity of chiral carbon nanoparticles: Fullerenes and carbon nanotubes

2014 ◽  
Vol 251 (12) ◽  
pp. 2451-2456 ◽  
Author(s):  
Péter R. Nagy ◽  
László Biró ◽  
János Koltai ◽  
Péter R. Surján ◽  
Ágnes Szabados ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Optical Activity ◽  
Carbon Nanoparticles ◽  
Chiral Carbon

Resonance Raman Optical Activity of Single Walled Chiral Carbon Nanotubes

2016 ◽  
Vol 120 (28) ◽  
pp. 5527-5538 ◽  
Author(s):  
Péter R. Nagy ◽  
János Koltai ◽  
Péter R. Surján ◽  
Jenő Kürti ◽  
Ágnes Szabados
Keyword(s):  
Carbon Nanotubes ◽  
Optical Activity ◽  
Resonance Raman ◽  
Raman Optical Activity ◽  
Chiral Carbon

Rectification in Chiral Carbon Nanotubes with Hot Electron Injection

2020 ◽  
Vol 131 (3) ◽  
pp. 456-459
Author(s):  
S. S. Abukari ◽  
R. Musah ◽  
M. Amekpewu ◽  
S. Y. Mensah ◽  
N. G. Mensah ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Injection ◽  
Hot Electron ◽  
Hot Electron Injection ◽  
Chiral Carbon

NANOMATERIALS AS OPTICAL LIMITERS

2000 ◽  
Vol 09 (04) ◽  
pp. 481-503 ◽  
Author(s):  
YA-PING SUN ◽  
JASON E. RIGGS ◽  
KEVIN B. HENBEST ◽  
ROBERT B. MARTIN
Keyword(s):  
Carbon Nanotubes ◽  
Nonlinear Absorption ◽  
Carbon Nanoparticles ◽  
Carbon Materials ◽  
Optical Limiting ◽  
Experimental Results ◽  
Nonlinear Scattering ◽  
Optical Limiters ◽  
Physico Chemical ◽  
Chemical States

Optical limiters based on several different classes of nanomaterials are reviewed. The systems under consideration include metal and semiconductor nanoparticles and nanoscale carbon materials. For the latter, the optical limiting properties of carbon nanoparticles, fullerenes, and suspended and solubilized carbon nanotubes are summarized and compared. Mechanistic implications of the available experimental results are discussed in terms of the comparison between nonlinear scattering versus nonlinear absorption as the dominating optical limiting mechanism for different nanomaterials and for different physico-chemical states of a nanomaterial.

scholarly journals Biological activity of carbon nanoparticles produced in combustion process

2019 ◽  
Vol 179 (4) ◽  
pp. 269-273
Author(s):  
Jarosław KAŁUŻNY ◽  
Natalia IDASZEWSKA ◽  
Tomasz RUNKA ◽  
Adam PIASECKI ◽  
Marek NOWICKI ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Experimental Study ◽  
Carbon Nanoparticles ◽  
Dominant Role ◽  
Combustion Process ◽  
Industrial Applications ◽  
Carbon Allotropes ◽  
Air Purifier ◽  
Residential Space

In the recent years industrial applications of carbon allotropes such as carbon nanotubes (CNTs) and graphene have been tested extensively, thus justifying research on the environmental impact these materials have. In the current paper we compare EDS spectroscopy results of a cabin filter used in a car to a filter used in an air purifier inside a residential space. The contaminants adsorbed on the carbon nanoparticles trapped in both types of filters allows for determining of their source of origin demonstrating clearly the dominant role of non-road emissions in Poland. Finally we present the experimental study on the growth of plants on substrates intentionally enriched with CNTs.

scholarly journals Electromagnetic Interference Shielding Efficiency in the Range 8.2-12.4 GHz of Polymer Composites with Dispersed Carbon Nanoparticles

2011 ◽  
Vol 14 (1) ◽  
pp. 55 ◽  
Author(s):  
Anna V. Gubarevich ◽  
Kazuki Komoriya ◽  
Osamu Odawara
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Polymer Composites ◽  
Electromagnetic Interference ◽  
Carbon Nanoparticles ◽  
Hot Press ◽  
Frequency Range ◽  
Electromagnetic Interference Shielding ◽  
X Band ◽  
Graphite Nanoparticles

In the present work, electromagnetic interference shielding properties of polymer composites with dispersed cup-stacked carbon nanotubes, graphite nanoparticles and carbon black were investigated. The polymer composites with carbon nanoparticles content from 1 to 5 w% were successfully prepared by the coagulation method, and composite sheets with thickness from 0.25 to 0.77 mm were formed by the hot press technique. The electromagnetic interference shielding efficiency measured in the frequency range of 8.2~12.4 GHz (X-band) of cup-stacked carbon nanotubes/polymer composite was considerably higher than that of carbon black and graphite nanoparticles polymer composites at the same contents of carbon nanoparticles, and contribution of absorption to the shielding efficiency was found to be higher than that of reflection.

scholarly journals Carbon Nanofibers from Carbon Nanotubes by 1.2 keVAr+Sputtering at Room Temperature

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Shuang-Xi Xue ◽  
Qin-Tao Li ◽  
Xian-Rui Zhao ◽  
Qin-Yi Shi ◽  
Zhi-Gang Li ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Carbon Nanofibers ◽  
Carbon Nanoparticles ◽  
Room Temperature ◽  
Ion Irradiation ◽  
Transmission Electron ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Carbon Nanowires

Multi-walled carbon nanotubes (MWCNTs) were irradiated by 1.2 keV Ar ion beams for 15–60 min at room temperature with current density of 60 µA/cm2. The morphology and microstructure are investigated by scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. The results show that carbon nanofibers are achieved after 60 min ion irradiation and the formation of carbon nanofibers proceeds through four periods, carbon nanotubes—amorphous carbon nanowires—carbon nanoparticles along the tube axis—conical protrusions on the nanoparticles surface—carbon nanofibers from the conical protrusions.

Effect of Isomorphic Impurities on the Elastic Conductivity of Chiral Carbon Nanotubes

2020 ◽  
Vol 94 (8) ◽  
pp. 1647-1656
Author(s):  
O. S. Lebedeva ◽  
N. G. Lebedev ◽  
I. A. Lyapkosova
Keyword(s):  
Carbon Nanotubes ◽  
Chiral Carbon

Enhancing the flame retardancy of polyamide 6 by guanidine sulfamate‐modified carbon nanoparticles: Carbon nanotubes versus graphite oxide

2018 ◽  
Vol 40 (S2) ◽  
pp. E1884-E1892 ◽  
Author(s):  
Zhang Sheng ◽  
Guo Jia ◽  
Sun Yongyuan ◽  
Lv Zhaoxia ◽  
Jin Xiaodong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Flame Retardancy ◽  
Graphite Oxide ◽  
Carbon Nanoparticles ◽  
Polyamide 6
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