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Orientational alignment carbon nano-tube and carbon coating cobalt nano-particle complex and preparation thereof

A carbon-coated cobalt nanometer and particle composite technology, applied in nanostructure manufacturing, nanotechnology, nanotechnology and other directions, can solve the problems of long reaction time, difficult application, complicated methods, etc., and achieves high work efficiency and easy availability of raw materials. , the effect of simple operation

Inactive Publication Date: 2010-08-25
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned method such as complexity, long reaction time, low yield, and difficult application, and provide a composite of aligned carbon nanotubes and carbon-coated cobalt nanoparticles and a preparation method thereof

Method used

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  • Orientational alignment carbon nano-tube and carbon coating cobalt nano-particle complex and preparation thereof
  • Orientational alignment carbon nano-tube and carbon coating cobalt nano-particle complex and preparation thereof
  • Orientational alignment carbon nano-tube and carbon coating cobalt nano-particle complex and preparation thereof

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Effect test

Embodiment 1

[0030] Embodiment 1: the preparation method step of present embodiment is:

[0031] (1) Using radio frequency magnetron sputtering method, using Co as the target source and Ar as the discharge gas, deposit Co thin film on the Si substrate. Controlled sputtering equipment, the DC sputtering current is 0.1A, the DC sputtering voltage is 280V, the Ar gas flow rate is 60.2sccm, the working pressure is 0.5Pa, and the deposition time is 60s.

[0032] (2) Put the Co thin film that step (1) obtains into plasma-enhanced chemical vapor deposition equipment, and this deposition system is the JGP300A type high-vacuum single-target high-temperature coating equipment produced by the Shenyang Scientific Instrument Research and Development Center of the Chinese Academy of Sciences, vacuumed to 5Pa, Access O 2 The flow rate is 2sccm, the working pressure is 20Pa, and the temperature is raised to 800 degrees in 40 minutes at the beginning, so that the cobalt film is oxidized into very small co...

Embodiment 2

[0035] Embodiment 2: the preparation method step of this embodiment is:

[0036] (1) Using radio frequency magnetron sputtering method, using Co as the target source and Ar as the discharge gas, deposit Co thin film on the Si substrate. Controlled sputtering equipment, the DC sputtering current is 0.1A, the DC sputtering voltage is 280V, the Ar gas flow rate is 60.2sccm, the working pressure is 0.5Pa, and the deposition time is 60s.

[0037] (2) Put the Co thin film that step (1) obtains into plasma-enhanced chemical vapor deposition equipment, and this deposition system is the JGP300A type high-vacuum single-target high-temperature coating equipment produced by the Shenyang Scientific Instrument Research and Development Center of the Chinese Academy of Sciences, vacuumed to 5Pa, Access O 2 The flow rate is 2sccm, the working pressure is 20Pa, and the temperature is raised to 800 degrees in 40 minutes at the beginning, so that the cobalt film is oxidized into very small cobal...

Embodiment 3

[0040] Embodiment 3: the preparation method step of this embodiment is:

[0041] (1) Using radio frequency magnetron sputtering method, using Co as the target source and Ar as the discharge gas, deposit Co thin film on the Si substrate. Controlled sputtering equipment, the DC sputtering current is 0.1A, the DC sputtering voltage is 280V, the Ar gas flow rate is 60.2sccm, the working pressure is 0.5Pa, and the deposition time is 60s.

[0042] (2) Put the Co thin film that step (1) obtains into plasma-enhanced chemical vapor deposition equipment, and this deposition system is the JGP300A type high-vacuum single-target high-temperature coating equipment produced by the Shenyang Scientific Instrument Research and Development Center of the Chinese Academy of Sciences, vacuumed to 5Pa, Access O 2 The flow rate is 2sccm, the working pressure is 20Pa, and the temperature is raised to 800 degrees in 40 minutes at the beginning, so that the cobalt film is oxidized into very small cobal...

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Abstract

The invention relates to a carbon nano tube in an oriented array, a carbon-coated cobalt nano particle compound and a preparation method thereof. The preparation method comprises the following steps: firstly, a Co membrane is deposited on a Si substrate by means of magnetron sputtering; secondly, the Co membrane is oxidized during heating up plasma-enhanced chemical vapor deposition equipment so as to form small cobalt oxide nano particles; thirdly, working gas H2+CH4 is fed in so as to carry out deposition growth; and finally, the carbon nano tube in the oriented array and the carbon-coated cobalt nano particle composite material are obtained. The compound carbon nano tube is directionally perpendicular to the Si substrate, and the carbon-coated cobalt nano particle is adhered to the topsurface of the carbon nano tube in the oriented array, wherein the carbon nano tube is a multi-wall carbon nano tube; moreover, the cobalt particle is monocrystal cobalt. The preparation method is simple and has the advantages of one-step finishing, easy control and convenient industrial production; moreover, the prepared composite material has an enormous application prospect in fields such as high-density magnetic recording material, wave absorption, biological medicine, electromagnetic screen, sensor and catalytic materials.

Description

technical field [0001] The invention relates to a composite of aligned carbon nanotubes and carbon-coated cobalt nanoparticle and a simple preparation method thereof. Background technique [0002] Since the discovery of carbon nanotubes in 1991, it has attracted widespread attention for its unique structure and excellent performance. Carbon nanotubes are seamless, hollow tubes rolled up from graphene sheets formed by carbon atoms. Theoretical predictions and experimental studies have shown that carbon nanotubes have unique electrical, thermal, magnetic, optical and mechanical properties, and have broad application prospects in nanoelectronic devices, field emission materials, aerospace, hydrogen storage materials, biomedicine and other fields . Due to the small size, high chemical stability and large specific surface area of ​​carbon nanotubes, carbon nanotubes are considered to be the most ideal carrier of metal nanoparticles, and metals can be filled in the tubes or atta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B25/00C30B29/02C23C16/00C01B31/02B22F1/02B82B3/00
Inventor 郑伟涛亓钧雷胡超权王欣
Owner JILIN UNIV
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