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Preparation method of hollow carbon nanosphere

A technology of nanospheres and hollow carbon, which is applied in nanocarbon, nanotechnology, nanotechnology, etc., can solve the problems of complex preparation process, poor repeatability, and difficult control of parameters, and achieve the effect of simple preparation method, regular structure and low cost

Active Publication Date: 2019-04-26
INNER MONGOLIA MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of the existing carbon sources for the preparation of hollow carbon spheres use glucose, PAA, etc. as carbon sources to prepare carbon nanospheres. It is difficult to control, and in practical applications, it is often necessary to obtain hollow carbon nanosphere materials with special shapes through complex preparation processes

Method used

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  • Preparation method of hollow carbon nanosphere

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 A preparation method of hollow carbon nanospheres

[0038] This embodiment is a preparation method of hollow carbon nanospheres, which is carried out in sequence according to the following steps:

[0039] (11) Disperse 0.8 kg of acorn kernel powder with a particle size of 5-10 μm in distilled water to form solution A1, dissolve 1.0 kg of nickel acetate in distilled water to form solution B1, slowly drop solution B1 into solution A1, and stir vigorously 1h, forming solution C1;

[0040] (12) Slowly add an aqueous solution containing 0.3kg of potassium hydroxide dropwise to solution C1, stir vigorously for 30 minutes (rotation speed: 500r / min), heat and evaporate at 85°C to remove water, and obtain product D1;

[0041] (13) Put the product D1 in a closed reactor, calcinate at 700°C for 2 hours, and cool it down to room temperature naturally after the reaction, to obtain the product E1;

[0042] (14) Wash the product E1 with distilled water to neutrality to obt...

Embodiment 2-5

[0046] The preparation method of embodiment 2-5 hollow carbon nanosphere

[0047]Examples 2-5 are a preparation method of hollow carbon nanospheres, the preparation steps are similar to those of Example 1, the only difference is that the corresponding technical parameters in the preparation process are different, as shown in the following table.

[0048]

[0049] SEM, TEM and XRD tests of the hollow carbon nanospheres prepared in Examples 2-5 show that the prepared hollow carbon nanospheres have a uniform structure and a porous structure.

Embodiment 6

[0050] Example 6 Effects of different carbon sources on the properties of hollow carbon nanospheres

[0051] The choice of carbon source has a great influence on the formation process of hollow carbon nanospheres. In order to explore the influence of different carbon sources on the properties of hollow carbon nanospheres, this example carried out experiments on different carbon sources. The preparation process of hollow carbon nanospheres and Example 1 is similar, except that the carbon source is different, as follows.

[0052] Group A: the acorn kernel powder provided by embodiment 1;

[0053] Group B: glucose;

[0054] Group C: corn starch;

[0055] Group D: licorice residue.

[0056]

[0057] It can be seen from the above table that only the acorn kernel powder provided by the present invention can prepare carbon nanospheres with regular structure and uniform particle size. The particle size of the product is 30-50nm, with strong adsorption and large specific surface ...

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Abstract

The invention provides a preparation method of a hollow carbon nanosphere. The hollow carbon nanosphere is prepared from acorn kernel powder serving as a carbon source and nickel acetate serving as anickel source with a calcined carbon method. The method is simple, the process is easy to control, the acorn kernel powder is wide in source and low in cost, and the prepared hollow carbon nanosphereis regular in structure, uniform in particle size which is 30 to 50 nm, high in absorbility and large in specific surface area. The method is suitable for preparing the hollow carbon nanosphere.

Description

technical field [0001] The invention belongs to the technical field of carbon nanospheres and relates to a preparation method of hollow carbon nanospheres. Background technique [0002] Hollow carbon nanosphere is a new carbon nanostructure, which has the advantages of large specific surface area, low density, good chemical stability, thermal stability and biocompatibility. It can be widely used in gas absorption, sewage treatment, hydrogen storage materials, catalyst supports, lithium-ion battery materials, drug delivery and release, etc. [0003] At present, the preparation methods of hollow carbon spheres mainly include template method, hydrothermal method and CVD method. Most of the existing carbon sources for the preparation of hollow carbon spheres use glucose, PAA, etc. as carbon sources to prepare carbon nanospheres. It is difficult to control, and in practical applications, it is often necessary to obtain hollow carbon nanosphere materials with special shapes thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/15B82Y30/00B82Y40/00B01J20/20B01J20/28B01J20/30
CPCB01J20/205B01J20/28021B01J20/28057B82Y30/00B82Y40/00C01B32/15
Inventor 武世奎曹群臧慧敏张燕芳
Owner INNER MONGOLIA MEDICAL UNIV
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