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Method for preparing carbon nano tube loaded nano nickel powder material by liquid-phase reduction method

A technology of carbon nanotubes and nano-nickel powder, which is applied in the field of preparing carbon nanotube-loaded nano-nickel powder materials, to achieve stable chemical properties, uniform dispersion, and prevent agglomeration

Inactive Publication Date: 2011-08-24
HEILONGJIANG UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of preparing a carbon nanotube-loaded nano-nickel powder material with uniform nickel dispersion on carbon nanotubes and stable chemical properties by liquid phase reduction without adding a polymer modifier.

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  • Method for preparing carbon nano tube loaded nano nickel powder material by liquid-phase reduction method

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specific Embodiment approach 1

[0007] Specific embodiment 1: In the present invention, without adding a polymer modifier, a carbon nanotube-loaded nano-nickel powder material with nickel dispersed uniformly on carbon nanotubes and stable chemical properties is obtained by a liquid phase reduction method, and its specific steps as follows:

[0008] Step 1: Acidizing the carbon nanotubes

[0009] Take 1g of carbon nanotubes, add 50-200ml of concentrated nitric acid, reflux and stir at 50-200°C for 1-10 hours, after the acidification is completed, dilute and wash with distilled water until neutral, then vacuum dry at 20-100°C for 12-36 hours Hour;

[0010] Step 2: Acid treatment of carbon nanotube-loaded nano-nickel powder

[0011] First, prepare 0.05~0.5mol / L NiSO 4 ·6H 2 O solution 5-50ml, 0.5-5.0mol / L hydrazine hydrate solution 10-100ml, 0.1-1.0mol / L NaOH solution 5-50ml; secondly, add hydrazine hydrate solution and NaOH solution to NiSO 4 ·6H 2 O solution; finally add 0.1~0.5g acidified carbon nanotu...

specific Embodiment approach 2

[0012] Specific embodiment two: the difference between this embodiment and specific embodiment one is: in step one: add the concentrated nitric acid of 70~150ml, reflux and stir at 70~170 ℃ for 1~10 hours, other steps and specific embodiment One is the same.

specific Embodiment approach 3

[0013] Specific embodiment three: the difference between this embodiment and specific embodiment two is: in step one: add the concentrated nitric acid of 80~120ml, reflux and stir at 100~150 ℃ for 2~8 hours, other steps and specific embodiment The first is the same, and the other steps are the same as in the second embodiment.

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Abstract

The invention discloses a method for preparing a carbon nano tube loaded nano nickel powder material by a liquid-phase reduction method, relating to a method for preparing the carbon nano tube loaded nano nickel powder material and aiming at solving the problems that the carbon nano tube loaded nano nickel powder body material with uniform dispersion on a carbon nano tube and stable chemical performance of nickel is prepared by the liquid-phase reduction method under the condition that a macromolecular modifier is not added. The method comprises the steps of: (1) carrying out acidizing treatment on the carbon nano tube; and (2) adopting the liquid-phase reduction method to carry out loading of nano nickel powder on the acidized carbon nano tube. The carbon nano tube loaded nano nickel powder material prepared by the method has the advantages that the macromolecular modifier impurities are not contained, and the nickel has uniform dispersion on the carbon nano tube and stable chemical performance. The invention provides an executable method capable of preparing the carbon nano tube loaded nano nickel powder material with uniform dispersion on the carbon nano tube and stable chemical performance of the nickel.

Description

technical field [0001] The invention relates to a method for preparing carbon nanotube-loaded nano-nickel powder material. Background technique [0002] Carbon nanotubes have a special structure and excellent electrical and magnetic properties, and have attracted much attention since their discovery. Loading metals on the surface of carbon nanotubes will further improve their physical properties such as electrical conductivity, corrosion resistance, and lubricity. Due to the high specific surface area of ​​carbon nanotubes, if the metal particles also have high dispersion, this composite material has high catalytic activity and can be applied to nanoelectronic devices, fuel cells and magnetic recording. . In the prior art, the method of preparing carbon nanotube-loaded nano-nickel powder material by liquid phase method is to add a polymer modifier, and the polymer modifier is used to control the size of the nickel diameter, and the nickel powder is loaded on the carbon nan...

Claims

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Application Information

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IPC IPC(8): B01J23/755B01J37/16B82Y40/00H01M4/38
CPCY02E60/12Y02E60/10
Inventor 赵东宇李志刚杨雪琴王玉凤
Owner HEILONGJIANG UNIV
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