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Preparation method of mesoporous carbon sphere material

A mesoporous carbon and carbon source technology, applied in the field of materials, can solve the problems of time-consuming and cumbersome process, and achieve the effects of simple and easy preparation method, avoiding pollution and low cost

Inactive Publication Date: 2014-06-11
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the preparation process of the hard template method involves the preparation of the template, the carbonization of the carbon precursor, and the removal of the hard template, the process is time-consuming and cumbersome.

Method used

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  • Preparation method of mesoporous carbon sphere material
  • Preparation method of mesoporous carbon sphere material
  • Preparation method of mesoporous carbon sphere material

Examples

Experimental program
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Effect test

Embodiment 1

[0032] According to the literature (Chinese patent, publication number CN101293936A), polystyrene spheres with a diameter of 1000 nm were prepared and used as templates.

[0033] 0.12g polystyrene spheres were added to a 250ml round bottom flask followed by 90ml ethanol. After ultrasonication for 30 min, 10 g of phenolic resin was added. And continue to react under ultrasound for 6 hours (190w, 40kHZ), centrifuge the above-mentioned solution, take the precipitate, wash it several times, and dry it in a 50°C oven overnight to obtain the polystyrene sphere / carbon source core-shell structure composite. The resulting polystyrene sphere / carbon source composite was loaded into a porcelain boat and heated in a resistance furnace at 2 °C min -1 Heated to 600°C and kept at this temperature for 5h. The whole synthesis process is in N 2 Finished in atmosphere. N 2 The mesoporous carbon sphere material can be obtained by lowering the temperature in the atmosphere with the furnace. T...

Embodiment 2

[0035] Polystyrene spheres with a diameter of 350 nm were prepared according to the literature (Chinese patent, publication number CN101293936A), and used as templates.

[0036] 0.12 g of polystyrene spheres were added to a 250 ml round bottom flask, followed by 90 ml of ethanol. After ultrasonication for 30 min, 10 g of phenolic resin was added. And continue to react under ultrasound for 6 hours (190w, 40kHZ), centrifuge the above-mentioned solution, wash the precipitate several times and dry it in a 50°C oven overnight to obtain the polystyrene sphere / carbon source core-shell structure composite. Put the obtained polystyrene sphere / carbon source composite into a porcelain boat, and heat it in a resistance furnace at 2°C min -1 Heated to 600°C and kept at this temperature for 5h. The whole synthesis process is in N 2 Finished in atmosphere. N 2 The mesoporous carbon sphere material can be obtained by lowering the temperature in the atmosphere with the furnace. The SEM a...

Embodiment 3

[0038] According to the literature (Chinese patent, publication number CN101293936A), polystyrene spheres with a diameter of 1000 nm were prepared and used as templates.

[0039] 0.12 g of polystyrene pellets were added to a 250 ml round bottom flask followed by 90 ml of ethanol. After ultrasonication for 30 min, 10 g of furfuryl alcohol was added. And continue to react under ultrasound for 6 hours (190w, 40kHZ), centrifuge and wash the above-mentioned solution several times, and then dry it in an oven at 50°C overnight to obtain the polystyrene sphere / carbon source core-shell structure composite. Put the obtained polystyrene sphere / carbon source composite into a porcelain boat, and heat it in a resistance furnace at 2°C min -1 Heat to 600°C for 5h. The whole synthesis process is in N 2 Finished in atmosphere. N 2The atmosphere cools down with the furnace. The mesoporous carbon sphere material can be obtained. Measured by SEM and TEM photos, the diameter of the obtained...

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Abstract

The invention provides a preparation method of a mesoporous carbon sphere material. The preparation method comprises the following steps: dissolving polystyrene spheres in water or an organic solvent; under an ultrasonic condition, adding a carbon source into suspension liquid obtained in the step, and continuously carrying out ultrasonic treatment for at least 0.5 hour-6 hours; separating solids; and preparing the mesoporous carbon sphere material by a high-temperature roasting method under an inert atmosphere, wherein a weight ratio of the polystyrene spheres to the carbon source is 1:(50-100), and a volume ratio of the polystyrene spheres to water or the organic solvent is 1:(500-1000). The preparation method is simple and easy to carry out and low in cost, realizes dispersion of a template and polymerization of a carbon source under an ultrasonic condition, is free of heating and stirring, free of an oxidant or a catalyst, time-saving and labor-saving; under protection of inert gases, a carbon precursor is carbonized to obtain hollow mesoporous carbon spheres while the template is removed by high temperature; the template is removed without extra steps, and therefore, the preparation method is simple and easy to carry out, and avoids pollution at the same time.

Description

technical field [0001] The invention relates to the field of materials, in particular to a method for preparing a mesoporous carbon sphere material. Background technique [0002] Mesoporous materials are a new type of nanostructured materials that emerged rapidly in the 1990s. It has been highly valued by the international physics, chemistry and materials science circles since its birth, and has rapidly developed into one of the interdisciplinary research hotspots. Mesoporous materials use the supramolecular structure formed by surfactants as a template, and use the sol-gel process to assemble into regular channels with a narrow pore size distribution between 2 and 30 nm through the orientation of the organic-inorganic interface. Structured inorganic porous materials. It has the characteristics of uniform pore size, orderly arrangement, and continuous adjustment of pore diameter in the range of 2-50nm, which makes it have great application potential in separation and purifi...

Claims

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Application Information

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IPC IPC(8): C01B31/02C01B32/05
Inventor 陈立松黄为民崔香枝王永霞施剑林
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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