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Preparation method and application of organic molecular non-covalent bond functionalized biomass carbon material

A technology of biomass carbon and organic molecules, applied in inorganic chemistry, carbon compounds, chemical instruments and methods, etc., can solve problems such as limiting specific capacitance and energy density

Inactive Publication Date: 2018-12-18
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electric double layer porous carbon material belongs to the electric double layer energy storage mechanism, which limits its specific capacitance and energy density.

Method used

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  • Preparation method and application of organic molecular non-covalent bond functionalized biomass carbon material
  • Preparation method and application of organic molecular non-covalent bond functionalized biomass carbon material
  • Preparation method and application of organic molecular non-covalent bond functionalized biomass carbon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Preparation of biomass porous carbon material A15: Mix 1 g of Zanthoxylum bungeanum powder and 3 g of potassium hydroxide powder, grind in a mortar for 2 h, add 20 mL of distilled water, stir for 24 h to fully react, and dry at 80 °C 12h, then in a nitrogen atmosphere at 5°C min -1 The temperature was raised to 800°C at a rate of 120 minutes, cooled to room temperature, and 1mol L -1 HCl and distilled water were washed several times, and dried at 70° C. to obtain 0.1348 g of biomass porous carbon material A15.

[0045] (2) Preparation of biomass porous carbon material electrode: 4 mg of biomass porous carbon material A15 and 0.7 mg of acetylene black (mass ratio: 85:15) were thoroughly ground in a mortar, and then the mixed powder was added to 0.4 mL of Nafion solution with a mass fraction of 0.25 wt% was ultrasonically dispersed to form a suspension; then 6 μL of the above suspension was dropped on the surface of the glassy carbon electrode with a pipette gun, and...

Embodiment 2

[0048] (1) Preparation of biomass porous carbon material A15: Mix 1 g of Zanthoxylum bungeanum seed powder and 3 g of potassium hydroxide powder, grind in a mortar for 2 h, add 20 mL of distilled water, stir for 24 h to make it fully react, and dry at 80 °C 12h, then in a nitrogen atmosphere at 5°C min -1 The temperature was raised to 800°C at a rate of 120 minutes, cooled to room temperature, and 1mol L -1 HCl and distilled water were washed several times, and dried at 70° C. to obtain 0.1348 g of biomass porous carbon material A15.

[0049] (2) Preparation of organic molecule non-covalent bond functionalized biomass carbon composite material H5: Dissolve 0.04g of 1-aminoanthraquinone in 50mL of acetone, sonicate for 30min; then add 0.05g of the biomass porous carbon material prepared above A15 (the mass ratio of A15 to 1-aminoanthraquinone is 5:4), stirred for 12 hours, and dried at 70°C to obtain H5.

[0050] (3) Preparation of organic molecule non-covalent bond functiona...

Embodiment 3

[0053] (1) Preparation of biomass porous carbon material A15: Mix 1 g of Zanthoxylum bungeanum seed powder and 3 g of potassium hydroxide powder, grind in a mortar for 2 h, add 20 mL of distilled water, stir for 24 h to make it fully react, and dry at 80 °C 12h, then in a nitrogen atmosphere at 5°C min -1 The temperature was raised to 800°C at a rate of 120 minutes, cooled to room temperature, and 1mol L -1 HCl and distilled water were washed several times, and dried at 70° C. to obtain 0.1348 g of biomass porous carbon material A15.

[0054] (2) Preparation of organic molecule non-covalent functionalized biomass carbon composite (H15): Dissolve 0.04g of 2,3-dichloro-1,4-naphthoquinone in 50mL of acetone, sonicate for 30min, and then add Mix 0.05 g of the biomass porous carbon material A15 prepared above (the mass ratio of A15 to 2,3-dichloro-1,4-naphthoquinone is 5:4), stir for 12 hours, and dry at 70°C to obtain H15.

[0055] (3) Preparation of organic molecule non-covalen...

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Abstract

The invention provides a preparation method of an organic molecular non-covalent bond functionalized biomass carbon material. The preparation method the following steps: washing, drying, grinding andactivating biomass Chinese prickly ash seeds used as a raw material, carrying out high-temperature heat treatment in a nitrogen atmosphere, performing pickling, and reacting the obtained material withorganic molecules 1-aminoguanidine and 2,3-dichloro-1,4-naphthene to obtain the organic molecular carbon composite material non-covalent bond functionalized biomass carbon composite material. A result of physical characterization shows that the product has a large specific surface area and a rich hierarchical pore structure. A result of electrochemical performance test shows that the product hasa high specific capacitance and is suitable for being used in supercapacitors as an electrode material.

Description

technical field [0001] The invention relates to a preparation method of organic molecule non-covalent bond functionalized biomass carbon composite material; the invention also relates to the application of the biomass porous carbon material as an electrode material in the preparation of supercapacitors, belonging to biomass materials and electrochemistry technology field. Background technique [0002] Supercapacitor is a new type of energy storage element with performance between traditional capacitors and secondary batteries, because it can provide higher energy density than traditional capacitors, higher power density than batteries, and can realize instantaneous large current discharge. The charging time is short, the efficiency is high, the service life is long, and it is green and pollution-free. Therefore, it is widely used in many fields such as information technology, electric vehicles, aerospace and national defense technology. [0003] According to different energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/348C01B32/354H01G11/34H01G11/86
CPCC01B32/348C01B32/354H01G11/34H01G11/86Y02E60/13
Inventor 胡中爱王倩李志敏
Owner NORTHWEST NORMAL UNIVERSITY
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