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Carbon nanosphere and preparation method and application thereof

A carbon nanosphere and carbon nanoparticle technology, applied in the fields of nanocarbon, nanotechnology, nanotechnology, etc., can solve the problems such as the research reports of hedgehog-shaped carbon nanospheres that have not been found, the inability to effectively control the particle size, and the limited surface area of ​​carbon particles. , to achieve the effect of rich surface, uniform particle size and uniform particle size

Inactive Publication Date: 2014-06-11
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Abstract
  • Description
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Problems solved by technology

[0006] Therefore, no matter which method is used to prepare carbon particles, the surface area of ​​the prepared carbon particles is limited, and the particle size cannot be effectively controlled, which affects the application of the carbon particles
In addition, through searching, no research reports on hedgehog-shaped carbon nanospheres have been found

Method used

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  • Carbon nanosphere and preparation method and application thereof
  • Carbon nanosphere and preparation method and application thereof

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preparation example Construction

[0024] Correspondingly, the embodiment of the present invention also provides a method for preparing the above-mentioned carbon nanospheres. For the process flow of the method for preparing carbon nanospheres, please refer to figure 2 . The carbon nanosphere preparation method comprises the following steps:

[0025] Step S01. Preheating the vacuum reaction chamber and introducing protective gas:

[0026] After preheating the vacuum reaction chamber in which the carbonization catalyst is placed, a protective gas is introduced from the bottom of the reaction chamber; wherein, the flow rate of the protective gas ensures that the catalyst is suspended;

[0027] Step S02. Introducing an organic carbon source into the reaction chamber for carbonization reaction:

[0028] Keep feeding protective gas into the reaction chamber and continue to heat the reaction chamber to 800-1300°C, then feed organic carbon source gas into the reaction chamber for carbonization reaction for 10-120 m...

Embodiment 1

[0041]A carbon nanosphere and a preparation method thereof, the preparation method of the carbon nanosphere comprises the steps of:

[0042] (1) Soak 0.1g of iron powder in ethanol and acetone respectively, put it in an ultrasonic cleaner for 30 minutes, then filter and transfer to a vacuum drying oven to dry at 80°C for 3 hours;

[0043] (2) Take out the iron powder and put it into a reaction chamber with a volume of 10L and a reaction table diameter of 25cm, and seal the reaction chamber. Use a mechanical pump, a Roots pump and a molecular pump to pump the reaction chamber to 1Pa step by step, and keep it for 30 minutes. , turn off the molecular pump and start heating;

[0044] (3) When the temperature of the reaction chamber reaches 500°C, the protective gas nitrogen is introduced from the bottom of the reaction chamber, and the gas flow rate is continuously increased. Observe from the observation mirror until the iron powder is suspended in the reaction chamber, and the ai...

Embodiment 2

[0049] A carbon nanosphere and a preparation method thereof, the preparation method of the carbon nanosphere comprises the steps of:

[0050] (1) Soak 0.15g of copper powder in ethanol and acetone, respectively, and place it in an ultrasonic cleaner for 30 minutes, then filter and transfer to a vacuum drying oven to dry at 100°C for 2 hours;

[0051] (2) Take out the copper powder and put it in the reaction chamber, and seal the reaction chamber. Use mechanical pump, Roots pump and molecular pump to pump the reaction chamber to 0.001Pa step by step, and keep it for 1 minute, then turn off the molecular pump and start heating;

[0052] (3) When the temperature of the reaction chamber reaches 500°C, the protective gas hydrogen is introduced from the bottom of the reaction chamber, and the gas flow rate is continuously increased. Observe from the observation mirror until the copper powder is suspended in the reaction chamber, and the air flow is no longer increased;

[0053] (4) ...

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Abstract

The invention discloses a carbon nanosphere and a preparation method and application thereof. The carbon nanosphere includes carbon nano particles and a plurality of carbon thorns growing on the carbon nano particle surface, the carbon nano particles and the carbon thorns make the carbon nanosphere hedgehog-like. The preparation method of the carbon nanosphere comprises the steps of vacuum reaction chamber preheating, introduction of a protective gas and introduction of an organic carbon source into a vacuum reaction chamber for carbonization reaction. Due to growth of the plurality of carbon thorns on the carbon nano particle surface, the carbon nanosphere is hedgehog-like, has a rich surface and a large surface area, and is uniform in particle size. The preparation method has the advantages of simple process, easy control and high production efficiency.

Description

technical field [0001] The invention belongs to the technical field of carbon materials, and in particular relates to a carbon nanosphere and its preparation method and application. Background technique [0002] At present, carbon materials are from zero-dimensional C 60 , one-dimensional carbon nanotubes, two-dimensional graphene and three-dimensional graphite have a lot of related research. Among them, carbon particles are widely used in heat-resistant fillers, reinforcements for composite materials, fillers, adsorbents, automotive parts, and motor parts due to their excellent mechanical properties, chemical resistance, heat resistance, wear resistance, and electrical conductivity. , industrial machinery, etc. [0003] At present, attention has been paid to porous carbon particles having pores in the interior in order to impart functionality to the carbon particles, for example, to increase the specific surface area. Specifically, activated carbon, which is a representa...

Claims

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Application Information

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IPC IPC(8): C01B31/02B82Y30/00B82Y40/00C01B32/15
Inventor 周明杰袁新生王要兵
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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