A preparation method of supercapacitor electrodes based on heteroatom-doped carbon materials

A technology of supercapacitors and carbon materials, applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., can solve the problems of high cost, unfriendly environment, etc., and achieve increased service life, great development and application value, excellent electric The effect of chemical properties

Active Publication Date: 2021-11-02
WENZHOU UNIVERSITY
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  • Application Information

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Problems solved by technology

[0004] Yu Hao et al. of South China University of Technology disclosed a method for preparing carbon materials doped with nitrogen, sulfur, and phosphorus heteroatoms. Phosphine solution, etc. are used as nitrogen, sulfur, phosphorus sources, and are mixed into carbon substrates by cracking deposition at high temperatures. This method has disadvantages such as high cost and unfriendly environment. Therefore, we use biomass as carbon substrates (biomass itself contains Heteroatoms), direct calcination method to prepare heteroatom-doped carbon materials, this method is simple, easy to synthesize, low cost, environmentally friendly, and excellent rate performance, it is an excellent choice for the preparation of supercapacitor electrode materials

Method used

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  • A preparation method of supercapacitor electrodes based on heteroatom-doped carbon materials
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  • A preparation method of supercapacitor electrodes based on heteroatom-doped carbon materials

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Embodiment 1

[0041] Weigh 2-4mg of dry yeast and place it in a porcelain boat. Under the condition of nitrogen as a protective gas, place it in a tube furnace for pyrolysis to form a heteroatom-doped biomass-based porous carbon material, which is treated at a high temperature of 800°C , and then naturally cooled to room temperature to obtain the activated material;

Embodiment 2

[0043] In Example 1, 800°C was replaced with 700°C, and other conditions remained unchanged.

Embodiment 3

[0045] In Example 1, 800°C was replaced with 900°C, and other conditions remained unchanged.

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Abstract

The invention relates to a method for preparing supercapacitor electrodes based on heteroatom-doped carbon materials. The direct pyrolysis method with dry yeast has more advantages for the high-temperature treatment of yeast, and can give full play to the excellent electrochemical performance of biomass carbon. The synthesized electrode material can provide continuous and stable electric energy in supercapacitors, and the service life is greatly improved.

Description

technical field [0001] The invention relates to a bio-based carbon material, which belongs to the technical field of inorganic functional materials and electrochemical energy, and specifically refers to a method for preparing a supercapacitor electrode based on a heteroatom-doped carbon material. Background technique [0002] In recent years, the massive consumption of non-renewable resources such as fossil fuels led by the world's developed industrial countries has produced very serious air pollution, and these pollutions have greatly affected the normal and healthy life of human beings, and people have gradually realized that long-term development Countries actively call on everyone to create a low-carbon, environmentally friendly, energy-saving and emission-reducing living environment. For this reason, the research on supercapacitors has shifted its focus to research on efficient and environmentally friendly energy storage devices in response to the call. Previously, res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/44H01G11/24
CPCY02E60/13
Inventor 张晶晶陈锡安崔翠霞吴婉仪金辉乐金晓铭
Owner WENZHOU UNIVERSITY
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