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Preparation method for pine-needle-shaped carbon nanotube/carbon fiber conductive network composite carbon material

A technology of carbon nanotubes and conductive networks, which is applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as difficult to carry out, harsh control conditions, and small growth of carbon nanotubes, and achieve Effects of improved stability, increased contact area, and high specific surface area

Active Publication Date: 2016-11-09
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 for pine-needle-shaped carbon nanotube/carbon fiber conductive network composite carbon material
  • Preparation method for pine-needle-shaped carbon nanotube/carbon fiber conductive network composite carbon material
  • Preparation method for pine-needle-shaped 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 was ultrasonically cleaned in isopropanol for 20 minutes, and then dried at 80°C for 20 minutes; secondly, the sizing agent on the surface of the carbon fiber was thermally decomposed, and calcined in a tube furnace for 6 hours at a temperature of 600°C; then, Acid treatment was carried out on the surface of the carbon fiber fabric, soaked in concentrated nitric acid for 3 hours, and dried at 60°C for 4 hours to obtain a carbon fiber fabric with a clean surface; then, weigh 6.06g of ferric nitrate and 0.2g of sucrose and dissolve them in 15g of silica sol and 2ml In the solvent of ethanol, stir magnetically at room temperature for 12 hours to prepare an inorganic metal catalyst precursor solution; finally, soak the carbon fiber fabric with a clean surface in the inorganic metal catalyst precursor solution for 60 minutes, filter it with suction for 2 minutes, and dry it at 80°C for 5 hours . ...

Embodiment 2

[0044] (1) Pretreatment of carbon fiber fabric

[0045] First, the carbon fiber fabric was ultrasonically cleaned in ethanol solution for 40 min, and dried at 60 °C for 20 min; secondly, the sizing agent on the surface of the carbon fiber was thermally decomposed, and calcined in a muffle furnace for 7 h at 400 °C; then, the 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 carbon fiber fabric with a clean surface; then, weigh 8.08g of cobalt nitrate and 0.27g of glucose and dissolve it in 20g of silica sol and 4ml of ethylene-propylene In an alcohol solvent, stir magnetically at room temperature for 12 hours to prepare an inorganic metal catalyst precursor solution; finally, soak the carbon fiber fabric with a clean surface in the inorganic metal catalyst precursor solution for 60 minutes, filter it with suction for 2 minutes, and dry it at 80°C for 5 hours . This process was re...

Embodiment 3

[0051] (1) Pretreatment of carbon fiber fabric

[0052] First, the carbon fiber fabric was ultrasonically cleaned in an ethanol solution for 30 minutes, and then dried at 80°C for 20 minutes; secondly, the sizing agent on the surface of the carbon fiber was thermally decomposed, and calcined in a muffle furnace for 6 hours at a temperature of 400°C; then, the 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 a clean surface; then, weigh 16.16g of nickel nitrate Dissolve 0.27g of maltodextrin in a solvent of 20g of silica sol and 4ml of ethylene-propanol, and stir magnetically for 18 hours at room temperature to obtain an inorganic metal catalyst precursor solution; finally, soak the carbon fiber fabric with a clean surface in the inorganic metal catalyst precursor Soak in the solution fo...

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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 a carbon nanotube / carbon fiber composite carbon material, specifically a method for preparing a high-density arranged pine needle-shaped carbon nanotube / carbon fiber conductive material on a carbon fiber substrate with overlapping and interlaced carbon fiber fabrics by using a chemical vapor deposition method. 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 curled graphene sheets, and can be divided into single-wall carbon nanotubes and multi-wall carbon nanotubes according to the number of layers of graphene sheets. Generally speaking, single-walled carbon nanotubes have relatively high chemical inertness due to their relatively complete surface structure. With the increase of the number of tube wall layers, more defect...

Claims

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Application Information

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IPC IPC(8): C01B31/02B82Y30/00B82Y40/00
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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