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Method for preparing film made from compound Nano carbon fiber

A technology of nano-carbon fiber and composite film, which is applied in the field of nano-materials, can solve the problems of poor adhesion, thin and limited CNT film thickness, and achieve the effect of low cost and good adhesion

Inactive Publication Date: 2005-08-31
上海纳晶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared CNT film is thin (<100 microns) and has poor adhesion, which limits its application
In addition, due to the small thickness of the film, if it is peeled off from the substrate, it will be broken into pieces and cannot be used

Method used

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  • Method for preparing film made from compound Nano carbon fiber

Examples

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Comparison scheme
Effect test

example 1

[0009] Example 1: First select the substrate, the substrate material can be glass, silicon, graphite, ceramic or metal material flakes with a thickness of 0.5-50 mm, of which aluminum oxide, silicon oxide, silicon nitride, silicon carbide can be selected for ceramics; metals include copper , titanium, nickel, iron, aluminum, molybdenum, tungsten, tantalum, stainless steel, or alloys thereof.

[0010] Then a metal catalyst layer is deposited on the base material, including iron, cobalt, nickel, copper, molybdenum and related alloys including iron copper, iron nickel, nickel copper, iron cobalt, iron molybdenum, nickel molybdenum, copper molybdenum. The thickness of the metal catalyst film is 10 nm to 1 mm. When the base material is iron, nickel, iron-copper, iron-nickel, nickel-copper, iron-cobalt, iron-molybdenum, nickel-molybdenum, and copper-molybdenum flakes, there is no need to deposit a metal catalyst layer.

[0011] The samples prepared in the above steps were put into ...

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Abstract

A process for preparing the composite carbon nanofibre film includes providing a substrate, depositing a metallic catalyst layer, putting it in low-pressure chemical vapor deposition system, adding carbon nanotubes and carbon nanofibres, and growing film.

Description

[Technical field] [0001] The invention relates to the field of nanomaterials, in particular to a preparation method of a composite nanometer carbon fiber film. [Background technique] [0002] One-dimensional nanostructured carbon materials including carbon nanotubes (CNTs) or carbon nanofibers (CNFs) are key materials for cathodes in many application fields such as electron field emission applications. Such materials not only have high thermal stability and chemical stability, but also has excellent electron field emission properties, such as low electron emission threshold field and high emission current density. There are three main methods for the production of carbon nanotubes: arc discharge, laser ablation, and chemical vapor deposition (CVD). Among them, only the CVD method is possible to grow carbon nanotube powders or films with high purity at low cost and on a large scale. The key technology lies in the controllability of the growth of carbon nanotubes, so that ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C1/00C01B31/02
Inventor 孙卓孙懿
Owner 上海纳晶科技有限公司
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