Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for testing binding power between multi-wall nanotubes

A technology of multi-walled nanotubes and cohesion, applied in the field of measurement, can solve the problems of complex operation process, low efficiency and high cost

Active Publication Date: 2015-11-25
JIANGNAN UNIV
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic and foreign methods for measuring the bonding force between nanotubes require the use of a variety of high-precision measuring instruments. The conditions are harsh, the cost is high, but the efficiency is low and the operation process is extremely complicated.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for testing binding power between multi-wall nanotubes
  • Method for testing binding power between multi-wall nanotubes
  • Method for testing binding power between multi-wall nanotubes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] Such as figure 1 Shown, the present invention comprises three steps:

[0035] Step 1: The geometry and spatial distribution of parallel and crossed two multi-walled nanotubes as figure 2 As shown in the figure, the axes of the multi-walled nanotubes CNT1 and CNT2 are parallel to each other, and the number of layers is m and n respectively. The radius of each layer on the two nanotubes is r 1i (1≤i≤m) and r 2j (1≤j≤n), such as image 3 shown. to rotate figure 2 At one end of the medium nanotube CNT2, when a certain point D on it moves to point E, the corresponding point B rotates to point C. The rotated nanotube is labeled CNT2', and its intersection angle with the CNT1 or CNT2 axis is β. In the cylindrical coordinate system (r, θ, z), the z axis is along the central axis of the nanotube CNT1. A vertical line perpendicular t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for testing binding power between multi-wall nanotubes in order to accurately test the binding power between the two multi-wall nanotubes when the nanotubes are located at the complex positions in space. The method includes the following steps that relative coordinates and absolute coordinates between corresponding points on the two multi-wall nanotubes in different coordinate systems are determined according to the geometric distribution condition of the two multi-wall nanotubes in space; the cohesive energy relational expression between the two multi-wall nanotubes can be calculated according to the Van Der Waals interaction between the two multi-wall nanotubes, and integration is conducted so that the total cohesive energy expression between the two multi-wall nanotubes can be obtained; derivation treatment is carried out on the total cohesive energy expression, so that the expression of the binding power between the two multi-wall nanotubes is obtained; the magnitude of the binding power between the two multi-wall nanotubes is calculated through a binding power formula by means of the given multi-wall nanotube radii and the perpendicular distance and the cross angle between the tubes. The method has the advantages that cost is low and the operation procedure is simple and convenient. Testing complexity is effectively lowered, and meanwhile high accuracy and precision are achieved. The method is suitable for application and popularization.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to the application of measurement technology in the nanoscale range, in particular to a method for measuring the bonding force between multi-walled nanotubes. Background technique [0002] Due to its unique structure and excellent performance, nanotubes are widely used in solar energy utilization, fuel cells, high-efficiency catalysts, field emission devices, and nanobiological systems, and have achieved very remarkable results. Recently, nanotubes have been assembled into integrated circuits for information storage, and their working principle and stability are mainly based on the bonding force between nanotubes. Accurately obtaining the cohesion between nanotubes is crucial. In addition, nanotubes have a large specific surface area and high surface energy, and are easily bonded to each other. This bonding phenomenon will affect the excellent performance of the nanotubes in a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N33/00
Inventor 赵军华董淑宏贲素东于培师
Owner JIANGNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com