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Preparation method of flexible carbon nanoparticle and application of method

A carbon nanoparticle, flexible technology, applied in the field of carbon nanoparticle preparation, can solve the problems of difficult synthesis and purification of carbon nanotubes, development obstacles, stability problems, etc., and achieve good field electron emission performance and good emission current stability sexual effect

Inactive Publication Date: 2011-09-07
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these materials have shown good infrared response characteristics, single-walled carbon nanotubes are difficult to synthesize and purify, and various organic compounds have stability problems in the air, which will hinder their development.

Method used

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  • Preparation method of flexible carbon nanoparticle and application of method
  • Preparation method of flexible carbon nanoparticle and application of method
  • Preparation method of flexible carbon nanoparticle and application of method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for producing flexible carbon nanoparticles, used to generate a flexible carbon nanoparticle layer, the method comprises the steps of:

[0024] 1. Cut the carbon cloth to a size of 3cm×0.5cm, clean it and dry it with nitrogen gas for later use.

[0025] 2. Choose a ceramic sheet as the substrate, first ultrasonically clean it in acetone for 5 minutes, then ultrasonically clean it in absolute ethanol for 5 minutes, and finally ultrasonically clean it in deionized water for 5 minutes, and dry it with nitrogen gas for later use.

[0026] 3. Select the alcohol burned by the alcohol lamp as the carbon source of carbon nanoparticles, place the alcohol lamp in an environment without strong air convection, and light the alcohol lamp for standby.

[0027] 4. After the alcohol lamp burns for 10-15 minutes, place the carbon cloth at a distance of 5.5cm from the wick of the alcohol lamp.

[0028] 5. After 30 seconds to 5 minutes, the carbon cloth is removed, and the carbo...

Embodiment 2

[0030] A method for producing flexible carbon nanoparticles, used to generate a flexible carbon nanoparticle layer, the method comprises the steps of:

[0031] 1. Cut the silicon wafer into 4cm×0.7cm size, ultrasonicate with acetone, alcohol and deionized water for 5 minutes each, and blow dry with nitrogen for later use.

[0032] 2. Choose a silicon wafer as the substrate, first ultrasonically clean it in acetone for 5 minutes, then ultrasonically clean it in absolute ethanol for 5 minutes, and finally ultrasonically clean it in deionized water for 5 minutes, and dry it with nitrogen for later use.

[0033] 3. Select the alcohol burned by the alcohol lamp as the carbon source of carbon nanoparticles, place the alcohol lamp in an environment without strong air convection, and light the alcohol lamp for standby.

[0034] 4. After the alcohol lamp burns for 10-15 minutes, place the silicon wafer at a distance of 5.5cm from the wick of the alcohol lamp.

[0035] 5. Remove the ca...

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Abstract

The invention provides a preparation method of flexible carbon nanoparticles, which is applied to produce a flexible carbon nanoparticle layer. The method provided by the invention is characterized by comprising the following steps: putting a clean substrate above the flame of a fired spirit lamp for baking until carbon nanoparticles are generated on the substrate, coating a flexible organic polymer on the carbon nanoparticles, curing, removing the flexible organic polymer coating from the substrate, and transferring the produced carbon nanoparticles to the flexible organic polymer coating, to obtain the flexible carbon nanoparticle layer. The carbon nanoparticles have wide application prospects in the fields of field electron emission cold cathodes, noble element nanoparticle carriers, infrared detection and hydrophobic materials and the like.

Description

technical field [0001] The invention relates to a preparation method and application of carbon nanoparticles. Background technique [0002] Flexible electronic devices have received more and more attention in recent years due to their advantages of high flexibility, bendability and consistency. Devices fabricated on flexible substrates can find applications in paper displays, electronic fabrics, distributed sensors, and large-area circuits on curved surfaces. Electrophoretic displays and liquid crystal display devices on curved plastic substrates are already on the market. In addition to applications in flexible displays, field emission displays on flexible substrates can also be used to make displays that can be rolled up. [0003] In terms of materials for field emission displays, low-dimensional nanostructures are ideal field emission materials due to their thinner tips and higher specific surface areas. Carbon nanotubes fabricated on flexible polymer substrates are go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02B82Y40/00
Inventor 周军袁龙炎代俊杰
Owner HUAZHONG UNIV OF SCI & TECH
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