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A kind of highly conductive carbon material and preparation method thereof

A technology of carbon materials and compounds, applied in the field of highly conductive carbon materials and their preparation, can solve the problems of fuel cell cathodes and anodes without high specific surface area, high conductivity, increase the force between catalyst and carrier, and achieve microscopic morphology Ease of control, excellent processability, wide application range

Active Publication Date: 2021-01-26
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials are produced at extremely high temperatures (higher than 800°C), and cannot meet the urgent needs of various energy systems in electrochemical energy applications.
For example, the current carbon materials cannot realize the low-temperature carbon coating technology required by some potential high-energy-density battery electrode materials, so as to improve the cycle, safety and fast charging performance of the electrode material through the carbon coating of the electrode material. ; Another example is that the current carbon materials do not have the high specific surface area, high conductivity, and high adhesion to the catalyst required by the cathode and anode of the fuel cell, and at the same time need to have high-efficiency transmission of gases and liquids; another example is light Catalysts require a certain semiconducting carrier to increase the force between the catalyst and the carrier, and to further optimize the photocatalytic performance of the catalyst. However, the current carbon materials cannot be used as such a carrier.
[0004] Many of the applications mentioned above pose serious challenges to the traditional production methods of carbon materials and the properties of carbon materials

Method used

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  • A kind of highly conductive carbon material and preparation method thereof
  • A kind of highly conductive carbon material and preparation method thereof
  • A kind of highly conductive carbon material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for preparing a carbon material, comprising the steps of:

[0045] (1) Add 10 mg of compound 1 into a 250 ml two-necked bottle, and dissolve it in 100 ml of dichloromethane, stir well, pass nitrogen protective gas into the solution, and stir for 30 minutes;

[0046] (2) Add 1ml of pyridine to the above solution, and fully stir for 30 minutes;

[0047] (3) Add 50 mg of copper nanowires to the above solution, control the reaction temperature at 25° C., and react for 10 hours under these conditions to obtain the following: figure 1 Carbon materials with the microstructure shown, the reaction yield is 90%.

Embodiment 2

[0049] A method for preparing a carbon material, comprising the steps of:

[0050] (1) Add 100 mg of compound 2 to a 250 ml two-necked bottle, and dissolve it in 100 ml of ether and ethyl acetate (the volume ratio of the two is 5:5), stir well, and pass argon into the solution Protective gas, stirring for 60 minutes;

[0051] (2) Add 2ml of triethylamine to the above solution, and fully stir for 30 minutes;

[0052] (3) Add 20 mg of copper-cobalt nanowires to the above solution, and the reaction temperature is controlled at 30° C., and reacted for 20 hours under this condition to obtain the following: figure 2 Carbon materials with the microstructure shown, the reaction yield is 95%.

[0053] The supercapacitor assembled from the carbon nanosheets prepared above has excellent stability, and the test results are as follows: image 3 shown.

Embodiment 3

[0055] A method for preparing a carbon material, comprising the steps of:

[0056] (1) Add 200 mg of compound 4 into a 500 ml two-necked bottle, and dissolve it in 300 ml of benzene, stir well, pass argon protective gas into the solution, and stir for 60 minutes;

[0057] (2) Add 5ml of triethylenetetramine to the above solution, and fully stir for 30 minutes;

[0058] (3) Add 100 mg of copper oxide nanosheets to the above solution, and the reaction temperature is controlled at 50° C., and reacted for 15 hours under this condition to obtain the following: Figure 4 The carbon material with the microstructure shown has a reaction yield of 85%.

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Abstract

The invention discloses a carbon material and a preparation method thereof. The preparation method comprises the following steps: adding a compound containing at least three alkynyl groups and a catalyst into a solvent, reacting at a certain temperature to obtain the carbon material . The present invention utilizes the high activity characteristics of alkynyl groups to obtain carbon materials from compounds containing at least three alkynyl groups under very mild conditions. It is easy to control the microscopic morphology, the molecular structure can be designed, and the carbon material structure can be fully adjusted according to the actual application requirements. The obtained carbon material has good conductivity, good stability, and better processing performance of the carbon material. At the same time, the method is simple in process, low in cost, wide in scope of application, more conducive to industrialized large-scale production, and conducive to the further promotion of carbon materials to many application fields that need to be operated under mild conditions.

Description

technical field [0001] The invention belongs to the field of carbon material preparation, and in particular relates to a high-conductivity carbon material and a preparation method thereof. Background technique [0002] Carbon materials have played an increasingly important role in modern society, and the development of carbon materials has provided important development opportunities for various industries. In recent years, the world is facing the challenges of gradually warming climate, increasingly serious pollution, and the year-by-year reduction of non-renewable fossil energy. Countries around the world are calling for cleaner energy, including fuel cells, lithium-ion batteries, and supercapacitors. , solar cells, and microbial fuel cells have become key scientific and industrial development projects in recent years. As we all know, the above clean energy sources are all inseparable from carbon materials with excellent performance, especially it is hoped that high-perfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/05C01B32/15
Inventor 李玉良左自成商虹汪帆刘辉彪李勇军
Owner INST OF CHEM CHINESE ACAD OF SCI
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