A kind of preparation method of textured carbon fiber cloth/carbon nanotube composite material

A technology of carbon nanotubes and textured carbon, which is applied in the direction of carbon fiber, fiber treatment, fiber chemical characteristics, etc., can solve the problems of limiting carbon nanotube loading and its application, high cost of commercial carbon cloth, cumbersome process, etc., to achieve effective Facilitate transmission, broaden application, and simple process

Active Publication Date: 2022-03-04
SHAANXI NORMAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high cost of commercial carbon cloth, the process is complicated and the process is cumbersome, the loading and application of carbon nanotubes on flexible materials are limited.

Method used

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  • A kind of preparation method of textured carbon fiber cloth/carbon nanotube composite material
  • A kind of preparation method of textured carbon fiber cloth/carbon nanotube composite material
  • A kind of preparation method of textured carbon fiber cloth/carbon nanotube composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Ultrasonic cleaning the waste cotton fiber fabrics in acetone, ethanol, and deionized water in sequence to remove dust, impurities and organic pollutants on the fiber surface, and then drying; wash and dry the cotton fiber fabrics in 0.05mol / L six Immerse in the hydrated nickel nitrate aqueous solution for 24 hours, and then dry it at 60°C to a wet state where there is just no flowing water on the surface, and freeze-dry it.

[0031] 2. Put the freeze-dried cotton fiber fabric in a tube furnace, raise the temperature to 800°C at a rate of 8°C / min under the protection of nitrogen gas with a gas velocity of 30sccm, and carbonize at a constant temperature for 60 minutes to obtain a porous material loaded with nickel particles. carbon fiber cloth.

[0032] 3. Adjust the nitrogen gas velocity to 12 sccm, and continue to keep the temperature at 800°C for 15 minutes. During this constant temperature process, connect the flask containing 150 mL of acetonitrile to the inlet o...

Embodiment 2

[0036] 1. Ultrasonic cleaning the waste cotton fiber fabrics in acetone, ethanol, and deionized water in sequence to remove dust, impurities and organic pollutants on the fiber surface, and then dry; wash and dry the cotton fiber fabrics in 0.1mol / L six Immerse in the hydrated nickel nitrate aqueous solution for 24 hours, and then dry it at 60°C to a wet state where there is just no flowing water on the surface, and freeze-dry it.

[0037] 2. Put the freeze-dried cotton fiber fabric in a tube furnace, raise the temperature to 800°C at a rate of 8°C / min under the protection of nitrogen gas with a gas velocity of 30sccm, and carbonize at a constant temperature for 90 minutes to obtain a porous material loaded with nickel particles. carbon fiber cloth.

[0038] 3. Adjust the nitrogen gas velocity to 15 sccm, and continue to keep the temperature at 800°C for 15 minutes. During this constant temperature process, connect the flask containing 150 mL of acetonitrile to the inlet of th...

Embodiment 3

[0040] 1. Ultrasonic cleaning the waste cotton fiber fabric in acetone, ethanol, and deionized water in sequence to remove dust, impurities and organic pollutants on the fiber surface, and then dry; wash and dry the cotton fiber fabric in 0.02mol / L six Immerse in the hydrated nickel nitrate aqueous solution for 24 hours, and then dry it at 60°C to a wet state where there is just no flowing water on the surface, and freeze-dry it.

[0041] 2. Put the freeze-dried cotton fiber fabric in a tube furnace, raise the temperature to 800°C at a rate of 8°C / min under the protection of nitrogen gas with a gas velocity of 30sccm, and carbonize at a constant temperature for 60 minutes to obtain a porous material loaded with nickel particles. carbon fiber cloth.

[0042] 3. Adjust the nitrogen gas rate to 12 sccm, and continue to keep the temperature at 800°C for 10 minutes. During this constant temperature process, connect the flask containing 150mL of acetonitrile to the inlet of the tube f...

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Abstract

The invention discloses a method for preparing a textured carbon fiber cloth / carbon nanotube composite material. In the method, cotton cloth impregnated with nickel nitrate is used as a base, nickel nitrate is used as a nickel source, acetonitrile is used as a carbon source, and carbonized in a nitrogen atmosphere Chemical vapor deposition, the morphology of carbon nanotubes is controlled by adjusting the amount of nickel nitrate, chemical vapor deposition time and nitrogen gas flow rate. The growth of carbon nanotubes not only improves the conductivity and mechanical properties of the textured carbon fiber cloth, but also leaves abundant pores on the textured carbon fiber cloth during the reduction process of nickel nitrate, which increases the specific surface area of ​​the electrode. As an electrode of a supercapacitor, it has excellent capacitance characteristics. The interweaving of carbon nanotubes is beneficial to the transmission of ions, which broadens the wide application of the material in the field of energy storage; moreover, the invention has easy-to-obtain raw materials, low cost and simple process, and can realize large-scale production.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, and in particular relates to a preparation method of a textured carbon fiber cloth / carbon nanotube composite material. Background technique [0002] Textured carbon fiber cloth has a hollow structure and can be used as a growth substrate for electrode materials. Or it can be directly applied to supercapacitors in the form of electrodes. Lei's research group (Journal of Colloid and Interface Science.553(2019) 705-712) carbonized cotton cloth as raw material to obtain textured carbon fiber cloth (TC), and then activated it with potassium hydroxide to obtain a texture with a large specific surface area Carbon fiber cloth (aTC) electrodes are used in supercapacitors. Although textured carbon fiber cloth has good application prospects as supercapacitor electrodes, its electrical conductivity and low specific capacity limit its application. [0003] Carbon nanotubes (CNTs), also known as buc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/74D06M11/83D01F9/16D06M101/40
CPCD06M11/74D06M11/83D01F9/16D06M2101/40
Inventor 雷志斌牛斐张文亮郭瑞孙惠
Owner SHAANXI NORMAL UNIV
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