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Preparation method of carbon material, and carbon material and application thereof

A technology of carbon materials and surfactants, applied in the field of carbon materials, can solve problems such as immaturity and achieve accurate control and good application prospects

Active Publication Date: 2022-01-14
QINGHAI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current technology to prepare and accurately control the morphology of carbon materials is not mature enough.

Method used

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  • Preparation method of carbon material, and carbon material and application thereof
  • Preparation method of carbon material, and carbon material and application thereof
  • Preparation method of carbon material, and carbon material and application thereof

Examples

Experimental program
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preparation example Construction

[0033] An embodiment of the present invention provides a method for preparing a carbon material, comprising the following steps:

[0034] S1, configuration of surfactant solution

[0035] The concentration of the surfactant solution is greater than or equal to 0.8 times the critical micelle concentration, and the use of a high-concentration surfactant solution can form aggregates under stirring conditions, and further coat the coating agent on the aggregates to form a coating .

[0036] In some embodiments, the concentration of the surfactant solution is 0.9-50 times the critical micelle concentration, preferably 0.95-20 times the critical micelle concentration. Specifically, the concentration of the surfactant solution can be 0.9 times, 0.95 times, 1.0 times, 5 times, 10 times, 15 times, 20 times the critical micelle concentration, or any value between the above adjacent concentration values .

[0037] Specifically, the surfactant is a carbonizable surfactant, and some raw...

Embodiment 1

[0059] The present embodiment provides a kind of preparation method of carbon material, comprises the following steps:

[0060] (1) According to the data, the critical micelle concentration (cmc) of sodium dodecylsulfonate (SDSN) at 40°C is 9.7×10 -3 mol / L.

[0061] (2) Prepare a solution (2.64g / 100mL) with a concentration 10 times that of the cmc, place it in a heating device, use a stirring device to stir the solution, and set the stirring speed to 300r / min. Gradually add solid sodium chloride to the solution until crystallization occurs in the solution and stop adding salt. After the water is evaporated to dryness, sodium chloride-coated sodium dodecylbenzenesulfonate aggregates are successfully prepared.

[0062] (3) Place the coating in a muffle furnace and raise the temperature to 400°C at a rate of 100°C / h, keep it warm for 1h, and cool naturally.

[0063] Test the morphology of the carbon material prepared in this embodiment, the resulting product SEM is as follows ...

Embodiment 2

[0065] This example provides a method for preparing a carbon material, which is different from Example 1 only in that the carbonization temperature in step (3) is 300°C. The specific surface area, pore volume and average pore diameter of the carbon material prepared in this example were tested, and the test results are shown in Table 1.

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Abstract

The invention discloses a preparation method of a carbon material, and the carbon material and application thereof, and relates to the technical field of carbon materials. The preparation method of the carbon material comprises the following steps: adding a coating agent into surfactant solutions with different concentrations, forming an aggregate by the surfactant under the condition of stirring evaporation, coating the aggregate by the coating agent to form a coating, performing pyrolysis carbonization on the coating to obtain a carbide, and enabling the material not to aggregate in a carbonization process by utilizing the coating of the coating agent, thereby obtaining the uniform carbon material. According to the invention, a new thought is provided for preparation of the carbon material, resources such as wood, coal and coconut shells are saved, the morphology of the carbon material can be obtained by controlling the concentration of the surfactant solution, the purpose of accurately controlling the morphology of the carbon material is achieved, and the carbon material has very good application prospects.

Description

technical field [0001] The invention relates to the technical field of carbon materials, in particular, to a preparation method, carbon materials and applications of carbon materials. Background technique [0002] Surfactant is an amphiphilic molecule with one end being lipophilic and the other end being hydrophilic, known as industrial monosodium glutamate. Surfactants can generally be divided into four categories: nonionic surfactants, amphoteric surfactants, cationic surfactants and anionic surfactants. At present, the research on surfactants is mainly focused on new bimolecular surfactants, the degradation of surfactants and the application of surfactants as auxiliary agents, but there is little research on the pyrolysis of surfactants. [0003] In 2020, the global sales of surfactants will reach 44.6 billion US dollars. In my country, the detergent and cosmetics industries are the two major industries with large consumption of surfactants. In the process of use, a lar...

Claims

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Application Information

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IPC IPC(8): C01B32/05C01B32/15C09K11/65B82Y20/00B82Y40/00B01J21/18B01J32/00B01J20/20B01J20/30B01J13/00
CPCC01B32/05C01B32/15C09K11/65B82Y20/00B82Y40/00B01J21/18B01J20/20B01J13/0091B01J35/23
Inventor 李海朝陈奇
Owner QINGHAI UNIV FOR NATITIES