Effect of van der Waals interaction on energetics and transport properties of a single anthracene molecule adsorbed or confined inside a carbon nanotube

2012 ◽  
Vol 85 (4) ◽  
Author(s):  
L. Debbichi ◽  
Y. J. Dappe ◽  
M. Alouani
Keyword(s):  
Carbon Nanotube ◽  
Transport Properties ◽  
Van Der Waals ◽  
Van Der Waals Interaction ◽  
Anthracene Molecule

Carbon nanotube mechanical resonator in potential well induced by van der Waals interaction with graphene

2015 ◽  
Vol 8 (8) ◽  
pp. 085101 ◽  
Author(s):  
Atsuko Nagataki ◽  
Kuniharu Takei ◽  
Takayuki Arie ◽  
Seiji Akita
Keyword(s):  
Carbon Nanotube ◽  
Van Der Waals ◽  
Van Der Waals Interaction ◽  
Potential Well ◽  
Mechanical Resonator

scholarly journals Multiscale Analysis of the Interfacial Mechanical Behavior for Composite of Carbon Nanotube andα-Alumina

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Tingting Yan ◽  
Gaofeng Wei
Keyword(s):  
Carbon Nanotube ◽  
Mechanical Behavior ◽  
Multiscale Analysis ◽  
Cox Model ◽  
Van Der Waals ◽  
Stress Transfer ◽  
Multiscale Methods ◽  
Van Der Waals Interaction ◽  
Cohesive Law ◽  
The Relationship

Based on multiscale methods the mechanical behavior for the interface of carbon nanotube andα-alumina is analyzed. The stress transfer between nanotube and alumina is provided by van der Waals interaction. Using cohesive law the relationship between normal stress (shear stress) and displacement is studied, as well as the stress intensity. The stress distribution of the interface is obtained by improved COX model. The strain rate of nanotube-composite is presented when the interfacial slip occurs through the van der Waals interaction.

BENDING STABILITY OF INNER AND OUTER TUBES OF DOUBLE-WALLED CARBON NANOTUBE

2009 ◽  
Vol 08 (01n02) ◽  
pp. 9-13 ◽  
Author(s):  
ALI REZA RANJBARTOREH ◽  
GUOXIU WANG
Keyword(s):  
Carbon Nanotube ◽  
Aspect Ratio ◽  
Van Der Waals ◽  
Bending Moment ◽  
Outer Tube ◽  
Van Der Waals Interaction ◽  
Continuum Modeling

This paper considers the effects of bending moment on the structure of double-walled carbon nanotube (DWCNT). Two types of DWCNTs with almost the same aspect ratio (length/radius) are selected; also continuum modeling is utilized to study the bending stability of inner and outer tubes. As a result of the van der Waals interaction between adjacent tubes the critical bending moment of inner tube is higher than this moment of outer tube which is indicated from the obtained results of this research; thus, achieving higher reliability in nanostructures, the critical bending moment of outer tube should be taken into account.

First-principles calculations of thermal transport properties in MoS2/MoSe2 bilayer heterostructure

2019 ◽  
Vol 21 (20) ◽  
pp. 10442-10448 ◽  
Author(s):  
Jiang-Jiang Ma ◽  
Jing-Jing Zheng ◽  
Xue-Liang Zhu ◽  
Peng-Fei Liu ◽  
Wei-Dong Li ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Transport Properties ◽  
First Principles ◽  
Thermal Transport ◽  
Lattice Thermal Conductivity ◽  
Van Der Waals ◽  
Van Der Waals Interaction ◽  
First Principles Calculations ◽  
Thermal Transport Properties

The van der Waals interaction in a MoS2/MoSe2 bilayer heterostructure has a significant effect on its lattice thermal conductivity.

scholarly journals Dispersibility of Multiwall Carbon Nanotube in a Polyanionic Surfactant Based on UV-Vis Analysis

2020 ◽  
Vol 20 (5) ◽  
pp. 1206
Author(s):  
Yuyun Irmawati ◽  
Deni Shidqi Khaerudini ◽  
Indriyati Indriyati ◽  
Mardiyati Mardiyati ◽  
Rike Yudianti
Keyword(s):  
Carbon Nanotube ◽  
Van Der Waals ◽  
Critical Role ◽  
Van Der Waals Interaction ◽  
Multiwall Carbon Nanotube ◽  
Covalent Interaction ◽  
Transmission Electron ◽  
Dispersion Degree ◽  
Mwcnt Concentration ◽  
Multiwall Carbon

The degree of carbon nanotube (CNT) dispersion in an ink solution plays a critical role in the performance of CNT based devices. This is a challenging task in the CNT utilization due to strong van der Waals interaction affecting the CNT bundles. A good dispersion degree can be achieved, for instance, by lowering the van der Waals interaction with the strategy of non-covalent interaction between polyanionic surfactant and the CNT surface. Herein, a simple and quick technique to disperse multiwall CNT (MWCNT) by using a polyanionic dispersant, carboxymethyl cellulose (CMC), is reported. The dispersion degree of MWCNT in aqueous solution during the sonication process was studied using UV-Vis analysis. Transmission electron microscope (TEM) was also applied to further investigate the interaction between CMC and MWCNT. The result shows that the maximum dispersion of MWCNT was achieved with a maximum absorbance in the UV-Vis spectra. Higher CMC concentration resulted in a higher viscosity of the solution, thus it increased the sonication duration in obtaining the maximum dispersion. By varying the MWCNT concentration at a constant CMC concentration of 0.25 wt.%, a homogenous MWCNT dispersion was obtained up to 0.2 wt.%. The encapsulation of a thin CMC layer on the MWCNT surface with a thickness of 1.5–3 nm was evidenced by TEM micrograph analysis.

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