A kind of preparation method of nano-nickel/array carbon nanotube composite material

A technology of carbon nanotubes and composite materials, which is applied in the direction of carbon nanotubes, nanocarbons, nanotechnology, etc., can solve the problems of easy high temperature oxidation, difficult dispersion of carbon nanotubes, and low interface compatibility, so as to achieve easy control and avoid premature The effect of wide compatibility of processing steps and interfaces

Active Publication Date: 2020-05-22
高彪峰
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of difficult dispersion of carbon nanotubes, low interface compatibility, and easy high-temperature oxidation, and provide a nano-nickel / array carbon nanotube with good dispersion, wide interface compatibility, controllable amount, and easy production. Preparation method, so as to expand the application of carbon nanotubes in energy storage, heat dissipation, microscopic enhancement, sensors, microwave absorption, catalysis and other fields

Method used

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  • A kind of preparation method of nano-nickel/array carbon nanotube composite material
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  • A kind of preparation method of nano-nickel/array carbon nanotube composite material

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Embodiment 1

[0024] The preparation method of arrayed carbon nanotubes is as follows: the surface area is 2.5m 2 Light aluminum foil as the substrate, 3g of ferrocene as the catalyst, heated to 635°C under an inert atmosphere, hydrogen with a flow rate of 30ccm as the reducing agent, and ethylene with a flow rate of 120ccm as the carbon source at the same time, reacted for 1.5h, and stopped adding carbon Source, after naturally cooling down to room temperature, arrayed carbon nanotubes with a length of 200 μm, a tube inner diameter of 3.0 nm, and a layer number of 8 layers were obtained on the light aluminum foil.

[0025] A preparation method of nano-nickel / array carbon nanotube composite material, the array carbon nanotube obtained by the above method is used as cathode, and 99.995% electrolytic nickel plate is used as anode, immersed in 120g / L nickel sulfate, 18g / L nickel chloride, 16g / L boric acid, 0.2g / L sodium dodecylbenzenesulfonate (SDS) mixed solution, 5mA / cm 2 The electric curr...

Embodiment 2

[0027] The preparation method of arrayed carbon nanotubes is as follows: the surface area is 4.5m 2Light aluminum foil as the substrate, 0.5g ferrocene as the catalyst, heated to 625°C in an inert atmosphere, hydrogen with a flow rate of 10ccm as the reducing agent, and acetylene with a flow rate of 50ccm as the carbon source, reacted for 30min, and stopped adding carbon source, after naturally cooling down to room temperature, arrayed carbon nanotubes ( figure 1 ).

[0028] A kind of preparation method of nano-nickel / array carbon nanotube composite material, with the array carbon nanotube obtained by the above method as cathode, 99.995% electrolytic nickel plate as anode, immersed in 270g / L nickel sulfamate, 30g / L nickel chloride , 10g / L boric acid mixed solution, 20mA / cm 2 The electric current 45min, obtains the nano-nickel particle that equivalent diameter is 30nm on the array carbon nanotube of cathode, forms nano-nickel / array carbon nanotube composite material, and the ...

Embodiment 3

[0030] The preparation method of arrayed carbon nanotubes is as follows: with a surface area of ​​8.0m 2 Corroded aluminum foil as the substrate, 3.5g of ferrocene as the catalyst, heated to 600°C in an inert atmosphere, and ethanol with a flow rate of 30mL / min as the carbon source, reacted for 1h, stopped adding the carbon source, and cooled down to room temperature naturally, that is Arrayed carbon nanotubes with a length of 100 μm, a tube inner diameter of 7.0 nm, and a layer number of 5 layers were obtained on the corroded aluminum foil.

[0031] A preparation method of nano-nickel / array carbon nanotube composite material, the array carbon nanotube obtained by the above method is used as a cathode, and the active nickel mesh with a sulfur content of 0.01-0.04% is an anode, immersed in 30g / L nickel sulfamate, 4g / L nickel chloride, 4g / L boric acid, 0.3g / L displacement agent LY-6813 (Tianjin Zhongsheng Surface Technology Co., Ltd.) 2 The electric current of 60min, on the ca...

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Abstract

The invention discloses a preparation method of a nano-nickel / array carbon nanotube composite material. The method comprises the following steps: using an array carbon nanotube as a cathode, and making nickel ions subjected to electrochemical reduction reaction on the array carbon nanotube at a certain current density to form the nano-nickel / array carbon nanotube composite material. The method provided by the invention uses the array carbon nanotube without any pretreatment on a metal foil as a substrate, obtains nano-nickel with controllable morphology and size on the cathode carbon nanotubeaccording to a constant current continuous electrochemical method, adopts closely linked steps, avoids a pretreatment process of the carbon nanotubes in the conventional method, and shortens the process flow; in addition, the constant current method is easier to control and easy to continuously and massively produce the nano-nickel / array carbon nanotube composite material. The method provided by the invention can effectively control the morphology and the size of the nano-nickel and the content of nickel by adjusting components and concentrations of the solution system, the current magnitude and the energization time, and is a simple, continuous and scalable preparation method of the nano-nickel / carbon nanotube composite material.

Description

technical field [0001] The invention relates to a method for preparing a nano-nickel / array carbon nanotube composite material, which belongs to the field of new materials. Background technique [0002] Carbon nanotubes are made of sp in carbon atoms 2 Mainly hybridized, mixed with sp 3 The ideal structure formed by hybridization. Due to its nanometer size and unique bonded structure, it is only one-sixth the density of steel, yet 100 times stronger. The average Young's modulus of a single multilayer carbon nanotube is 118TPa, the bending strength reaches 1412GPa, the conductivity can be adjusted within a certain range, and it has specific properties such as chirality, electromagneticity, and metallicity, and is widely used in energy storage and medicine In the fields of carrier, matrix reinforcement, and microwave absorption, especially arrayed carbon nanotubes, due to their inherent characteristics such as high order, they have been widely used in fields such as field em...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/12C25C1/08C25C7/02C01B32/16B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01B32/16C01B2202/34C25C1/08C25C7/02
Inventor 高彪峰谷保祥杨建红刘碧波刘帅霞李会林陈垒高玉梅张继伟李碗碗邓天天
Owner 高彪峰
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