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Preparation method of pine needle-like carbon nanotube/carbon fiber conductive network composite carbon material

A carbon nanotube and conductive network technology, which is applied in the field of preparation of carbon nanotube/carbon fiber composite carbon materials, can solve the problems of harsh control conditions, difficult to carry out, and less growth of carbon nanotubes, and achieves high specific surface area and improves stability. , the effect of increasing the contact area

Active Publication Date: 2017-12-08
清创人和生态工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although carbon nanotubes grown on carbon fibers have a certain array structure, the catalyst loading process method is relatively complicated in the citation, and the control conditions are harsh and difficult to carry out.
Secondly, this method only grows sparse carbon nanotube arrays on one side of the carbon fiber, while the other side of the carbon fiber basically does not grow carbon nanotubes, resulting in less growth of carbon nanotubes

Method used

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  • Preparation method of pine needle-like carbon nanotube/carbon fiber conductive network composite carbon material
  • Preparation method of pine needle-like carbon nanotube/carbon fiber conductive network composite carbon material
  • Preparation method of pine needle-like carbon nanotube/carbon fiber conductive network composite carbon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Pretreatment of carbon fiber fabric

[0038] First, the carbon fiber fabric is ultrasonically cleaned in isopropanol for 20 minutes and dried at 80°C for 20 minutes; secondly, the sizing agent on the carbon fiber surface is thermally decomposed and calcined in a tube furnace for 6 hours at a temperature of 600°C; then, Carry out acid treatment on the surface of the carbon fiber fabric, soak in concentrated nitric acid for 3 hours, and dry at 60°C for 4 hours to obtain a carbon fiber fabric with clean surface; then, weigh 6.06g ferric nitrate and 0.2g sucrose and dissolve in 15g silica sol and 2ml In the solvent of ethanol, magnetically stirred at room temperature for 12 hours to prepare the inorganic metal catalyst precursor solution; finally, the carbon fiber fabric with clean surface was soaked in the inorganic metal catalyst precursor solution for 60 minutes, filtered for 2 minutes and dried at 80°C for 5 hours . This process is repeated twice to make the ferric ni...

Embodiment 2

[0044] (1) Pretreatment of carbon fiber fabric

[0045] First, the carbon fiber fabric is ultrasonically cleaned in ethanol solution for 40 minutes and dried at 60°C for 20 minutes; secondly, the sizing agent on the carbon fiber surface is thermally decomposed and calcined in a muffle furnace for 7 hours at a temperature of 400°C; The surface of the carbon fiber fabric is acid treated, soaked in concentrated sulfuric acid for 6 hours, and dried at 60°C for 4 hours to obtain a clean carbon fiber fabric; then, weigh 8.08g cobalt nitrate and 0.27g glucose and dissolve in 20g silica sol and 4ml isopropyl In an alcohol solvent, magnetically stirred at room temperature for 12 hours to prepare the inorganic metal catalyst precursor solution; finally, the carbon fiber fabric with clean surface was soaked in the inorganic metal catalyst precursor solution for 60 minutes, filtered for 2 minutes and dried at 80°C for 5 hours . This process is repeated 4 times, so that cobalt nitrate and gl...

Embodiment 3

[0051] (1) Pretreatment of carbon fiber fabric

[0052] First, the carbon fiber fabric is ultrasonically cleaned in ethanol solution for 30 minutes and dried at 80°C for 20 minutes; secondly, the sizing agent on the carbon fiber surface is thermally decomposed and calcined in a muffle furnace for 6 hours at a temperature of 400°C; The surface of the carbon fiber fabric is acid treated, soaked in a solution of concentrated nitric acid and concentrated sulfuric acid with a volume ratio of 1:1 for 3 hours, and dried at 60°C for 4 hours to obtain a carbon fiber fabric with clean surface; then, weigh 16.16g of nickel nitrate Dissolve 0.27g maltodextrin in a solvent of 20g silica sol and 4ml isopropanol, stir magnetically for 18 hours at room temperature, and configure the inorganic metal catalyst precursor solution; finally, soak the carbon fiber fabric with clean surface in the inorganic metal catalyst precursor Leave the solution in the solution for 30 minutes, filter with suction f...

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Abstract

The invention discloses a preparation method for a pine-needle-shaped carbon nanotube / carbon fiber conductive network composite carbon material. The preparation method comprises taking fiber of carbon fiber fabric as a growth substrate, and growing carbon nanotubes arranged in high density on the growth substrate. The carbon nanotubes arranged in high density on the growth substrate and the carbon fiber substrate together form the three-dimensional porous pine-needle-shaped carbon nanotube / carbon fiber conductive network composite carbon material. The material is an ideal material for loading an active substance or reaction substance because of possessed high specific surface area, and is capable of inhibiting structure damage caused during reaction because of excellent mechanical strength. Also, because of intersection or overlapping of carbon nanotube and carbon fiber, the integrity of the conductive framework of the composite material is facilitated to be improved, and the composite material possesses wide application prospect in fields of fuel batteries, supercapacitors, lithium-air batteries, lithium-sulfur batteries, organic solar cells and the like.

Description

Technical field [0001] The invention relates to a preparation method of carbon nanotube / carbon fiber composite carbon material, in particular to a method for preparing high-density arrangement of pine needle-like carbon nanotubes / carbon fiber conductive materials on a carbon fiber substrate with overlapping and staggered carbon fiber fabrics. Network composite carbon material. Background technique [0002] Carbon nanotubes are an important member of the "nanoworld" and have been at the forefront of international science in recent years. Carbon nanotubes can be regarded as formed by curling graphene sheets. According to the number of graphene sheets, they can be divided into single-wall carbon nanotubes and multi-wall carbon nanotubes. Generally speaking, single-walled carbon nanotubes have relatively high chemical inertness due to their relatively complete surface structure. As the number of tube wall layers increases, more defects are generated on the surface, which enhances ph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/16B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01P2004/03C01P2004/13C01P2004/61C01P2004/64C01P2006/12
Inventor 刘世斌孟卫娟李瑜李一兵张忠林段东红郝晓刚
Owner 清创人和生态工程技术有限公司
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