High-conductivity carbon material and preparation method thereof

A carbon material, high conductivity technology, applied in the field of high conductivity carbon material and its preparation, can solve the problems of increasing the force between the catalyst and the carrier, not having the high specific surface and high conductivity of the cathode and anode of the fuel cell, etc. Easy to control the morphology, excellent processing performance, good electrical conductivity

Active Publication Date: 2019-06-28
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • High-conductivity carbon material and preparation method thereof
  • High-conductivity carbon material and preparation method thereof
  • High-conductivity 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 as well as a catalyst into a solvent, and reacting at a certain temperature, so as to obtain the carbon material. The preparation method has the advantages that the carbon material is prepared from the compound containing three alkynyl under a very mild condition by virtue of the high activity of alkynyl, the preparation efficiency of the preparation method is greatly superior to that of an existing preparation process of high-temperature carbon materials, the microstructure of the obtained carbon material is easy to control, the molecular structure of the carbon material can be designed, the structure of the carbon material can be adequately regulated and controlled according to practical application demands, and the obtained carbon material is good in conductivity and stability and has relatively excellent processability. Meanwhile, the method is simple in process, low in cost, wide in application range and relatively beneficial to industrial large-scale production, and the carbon material can be further popularized to more application fields requiring mild operation 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 Applications(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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