By Sadegh Imani Yengejeh, Seyedeh Alieh Kazemi, Andreas Öchsner
This quantity provides a entire procedure for categorizing carbon nanotubes and their transformations when it comes to nano sheets, nanotubes, microscopic and atomic transformations. furthermore, the cloth and geometric houses of those nano-configurations are addressed. finally, it introduces a few universal software program programs for geometry new release and several other advertisement finite aspect programs.
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Extra resources for A Primer on the Geometry of Carbon Nanotubes and Their Modifications
This software is used for modeling different types of CNTs. CoNTub is a computer program for determining the coordinates of these nanostructures. e. the primary bonds between two nearestneighboring atoms) are calculated by this software. Some features of the first version of CoNTub are simulating SWCNTs and MWCNTs. The most highlighted feature of the second version of this software is to generate the models of threejunctioned CNTs. 1 displays a snapshot from CoNTub software. 2 Carbon/Boron Nitride Nanostructure Builder Plugin Using this plugin, models of carbon or boron nitride nanoparticles including single-wall nanotubes or graphene-like sheets can be simulated.
3 Three-Nanotube Junctions The construction procedure becomes much harder when we join three CNTs together to form a three-tube configuration . 14, the structure is now composed of three branches, and the transition between three tubes demands a particular geometry which cannot be arbitrary. 11 Pentagon and heptagon pair defects of a (8,0)-(7,1) hetero-junction CNT Three joined tubes require at least six heptagons, which have to be placed adequately for each specific junction. Nevertheless, it is not possible in every situation to guess the placement of the heptagons, and this task becomes a mathematical puzzle which is quite hard to solve.
The Author(s) 2015 S. 2 Front view and a single ring of a (10, 10)-armchair 4-walled and b (20, 0)-zigzag 6-walled CNT Chapter 5 Defective CNT Structures Basically, the defects in the configuration of CNTs are categorized as macroscopic and atomic modifications. The following section will explain the differences between these two types of defects in detail. 1 illustrates a few instances of these modifications. 2. 1 Straight Hetero-Junctions It is possible to connect two CNTs with different chiralities by just introducing a pair of pentagon and heptagon defects in the otherwise perfect hexagonal graphite lattice .
A Primer on the Geometry of Carbon Nanotubes and Their Modifications by Sadegh Imani Yengejeh, Seyedeh Alieh Kazemi, Andreas Öchsner
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