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Method for preparing spiral carbon nano pipe

A carbon nanotube and helical technology, which is applied in the field of preparing helical carbon nanotubes, can solve the problems that cannot meet the research and application fields, and achieves the effects of low cost, simple processing technology and excellent performance.

Inactive Publication Date: 2005-08-03
浙江轩爱能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, carbon nanotubes with this structure still cannot meet the needs of research and application fields, and more structural nanotubes still need to be developed and studied.

Method used

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  • Method for preparing spiral carbon nano pipe

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Embodiment

[0015] After the manganese nodule minerals from the seabed are roughly crushed, they are ultrasonically cleaned in a large amount of clean water to remove dirt such as clay attached to the surface. Then ball mill and sieve the powder below 200 mesh to be used as catalyst.

[0016] Put the above-mentioned mineral catalyst into a quartz boat of a chemical vapor deposition device, heat to 750° C., and keep it warm for 20 minutes under a nitrogen atmosphere. Then feed acetylene gas at 80ml / min, catalyze the cracking reaction for 15 minutes, and obtain a product containing a large number of helical carbon nanotubes, the scanning electron microscope photo of which is shown in figure 1 .

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Abstract

The preparation process of spiral carbon nanotube includes the following steps: 1) crushing manganese nodule mineral from sea bed and ultrasonic cleaning in clear water to eliminate dirt; 2) ball milling the manganese nodule mineral and sieving to obtain 200-mesh powder to be used as catalyst; and 3) setting the catalyst inside quartz boat, maintaining at 700-850 deg.c in nitrogen atmosphere for at least 20 min, and introducing acetylene gas to produce catalytic cracking reaction for at least 15 min to prepare spiral carbon nanotube. The present invention is simple and low in cost, and can provide spiral carbon nanotube or research and application.

Description

technical field [0001] The invention relates to a method for preparing helical carbon nanotubes. Background technique [0002] Carbon nanotubes are a one-dimensional tubular nanostructure composed of multilayer coaxial seamless or single-layer graphite sheets. It is a nanomaterial with excellent physical and chemical properties and has been widely used in many fields. Applications, for example, field emission materials, composite materials, supercapacitors, secondary batteries, coatings, reinforcing fibers, etc. However, carbon nanotubes with this structure still cannot meet the needs of research and application fields, and nanotubes with more structures still need to be developed and studied. Contents of the invention [0003] The object of the present invention is to propose a method for preparing helical carbon nanotubes in order to obtain helical carbon nanotubes. [0004] The preparation method for preparing helical carbon nanotubes proposed by the present invention...

Claims

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Application Information

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IPC IPC(8): B82B3/00C01B31/02
Inventor 关君正程继鹏张孝彬刘芙叶瑛
Owner 浙江轩爱能源科技有限公司
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