Structure and dynamics of metallic and carburized catalytic Ni nanoparticles: effects on growth of single-walled carbon nanotubes

2015 ◽  
Vol 17 (22) ◽  
pp. 15056-15064 ◽  
Author(s):  
Jose L. Gomez-Ballesteros ◽  
Perla B. Balbuena
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Ni Nanoparticles ◽  
Single Walled Carbon ◽  
Structure And Dynamics ◽  
Electron Accumulation ◽  
Walled Carbon Nanotubes

Carburized Ni nanoparticle/carbon caps show electron accumulation (green) at the metal/rim interface and depletion (blue) on the rim C–C bonds.

Structure and dynamics of carbon buckyballs encapsulated into Single-Walled carbon Nanotubes

2004 ◽  
Vol 858 ◽  
Author(s):  
Julien Cambedouzou ◽  
Stéphane Rols ◽  
Robert Almairac ◽  
Jean-Louis Sauvajol ◽  
H. Kataura ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Inelastic Neutron Scattering ◽  
Single Walled Carbon Nanotubes ◽  
Large Mass ◽  
Inelastic Neutron ◽  
Single Walled Carbon ◽  
Structure And Dynamics ◽  
Rotational Motions ◽  
Walled Carbon Nanotubes ◽  
Very High

ABSTRACTThe structural and dynamical properties of C60 chains inserted inside Single Walled carbon Nanotubes (SWNT) have been investigated by x-ray and neutron diffraction, and inelastic neutron scattering (INS). The measurements have been performed on a large mass of a very high quality carbon peapods sample. We showed that powder diffraction could hardly give definitive response on the way the C60s are bonded inside SWNT. However, the comparison of the neutron-derived generalized density of states (GDOS) of the inserted C60 peas with the GDOS of the same objects derived from lattice dynamics calculations led to unambiguous results. The observation of excitations in the 8–15 meV range is a clear evidence for the presence strong bonds between C60s in the sample. In the same time, the observation of a very weak quasi-elastic signal may be related to rotational motions of C60 monomers inside the SWNT. These results suggest that peapods are made of a mixed phase of C60 monomers and C60 n-mers.

Purity Evaluation of Single-Walled Carbon Nanotubes Using Thermogravimetric Analysis

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermogravimetric Analysis ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Purity Evaluation ◽  
Walled Carbon Nanotubes
Sign in / Sign up

Export Citation Format

Share Document