scholarly journals A role of phonon-assisted tunnelling in electrical conductivity of carbon nanotube networks

2008 ◽  
Vol 48 (1) ◽  
pp. 73-78 ◽  
Author(s):  
P. Pipinys
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Carbon Nanotube Networks

Temperature Dependence of Electrical Conductivity of Multi-Walled Carbon Nanotube Networks in a Polystyrene Composite

2013 ◽  
Vol 543 ◽  
pp. 356-359 ◽  
Author(s):  
David Petras ◽  
Petr Slobodian ◽  
Robert Olejnik ◽  
Pavel Riha
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Temperature Dependence ◽  
Conduction Mechanism ◽  
Specific Role ◽  
Conduction Path ◽  
Heterogeneous Model ◽  
Multi Walled Carbon Nanotube ◽  
Carbon Nanotube Networks

The conductance properties of multi-walled carbon nanotube mats and their polystyrene composite were examined to investigate the mechanism of conduction and the specific role of the supporting polymer. By measuring the temperature dependence of the conductance, it was found that the conduction mechanism in carbon nanotube mat follows the series heterogeneous model when the conductance is described as the sum of metallic and barrier portions of the conduction path. This mechanism is affected by the polymeric portion of the composite, since the temperature dependence of the composite conductance is decreased.

Role of Multiwall Carbon Nanotubes (MWCNT) on Electrical Conductivity of Polymer Composite as Alternative Materials for Bipolar Plate Fuel Cell

2013 ◽  
Vol 737 ◽  
pp. 183-190 ◽  
Author(s):  
Anne Zulfia ◽  
Sutopo ◽  
Bangkit Indriyana ◽  
M.E. Albar ◽  
S. Rohman
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Multiwall Carbon Nanotubes ◽  
Material Design ◽  
Bipolar Plate ◽  
Multiwall Carbon Nanotube ◽  
Crucial Component ◽  
Carbon Nano Tube ◽  
Multiwall Carbon

Polypropylene can be improved an electrical conductivity by addition of carbon and multiwall carbon nanotube (MWCNT) as well as combination with copper (Cu) powder. Multiwall carbon nanotube used from 0.1 wt%, 0.5 wt% to 1 wt% while the addition of Cu powder into PP/C was various from 0.1 wt%, 0.2wt% to 0.5wt% respectively. This research focuses on material design of composite based on polymer and carbon to improve an electrical conductivity according to electrical conductivity requirement for bipolar plate. Bipolar plate is one of the components in PEMFC constituted a crucial component that collects and transfers electron from the anode to the cathode, therefore it should possess high electrical conductivity. The main discussion in this research is to analyze the role of multiwall carbon nano tube (MWCNT) and copper on electrical conductivity of polymer composites produced. Functional groups analysis using Fourier Transform Infrared Spectroscopy (FTIR) was also carried out to investigate whether carbon has been mixed perfectly within polypropylene. It is found that the effect of adding a small amount of MWCNT and Cu have improved their electrical conductivity of composites up to 15.62 S/cm.

scholarly journals Modeling the effect of interfacial conductivity between polymer matrix and carbon nanotubes on the electrical conductivity of nanocomposites

RSC Advances ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 424-433
Author(s):  
Yasser Zare ◽  
Kyong Yop Rhee
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Polymer Matrix ◽  
Simple Equations

This article presents the role of interfacial conductivity between the polymer matrix and nanoparticles in the electrical conductivity of polymer carbon nanotube (CNT) nanocomposites (PCNT) by simple equations.

The role of structural defects on the transport properties of a few-walled carbon nanotube networks

2011 ◽  
Vol 98 (19) ◽  
pp. 192105 ◽  
Author(s):  
R. Kamalakannan ◽  
K. Ganesan ◽  
S. Ilango ◽  
N. Thirumurugan ◽  
V. N. Singh ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Transport Properties ◽  
Structural Defects ◽  
Carbon Nanotube Networks
Sign in / Sign up

Export Citation Format

Share Document