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Method for preparing graphene/nickel nanocomposite material by utilizing gamma ray

A technology of nanocomposite materials and gamma rays, which is applied in the field of preparation of graphene/nickel nanocomposites using gamma rays, can solve the problems of high environmental hazards and high cost of graphene-nickel nanocomposites, and achieve environmental hazards Small, inexpensive to prepare, highly controllable effect

Active Publication Date: 2013-04-03
TECHN PHYSICS INST HEILONGJIANG ACADOF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of high cost and great environmental hazards of preparing graphene-nickel nanocomposites by existing methods, and provides a method for preparing graphene / nickel nanocomposites using gamma rays

Method used

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  • Method for preparing graphene/nickel nanocomposite material by utilizing gamma ray
  • Method for preparing graphene/nickel nanocomposite material by utilizing gamma ray

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Experimental program
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specific Embodiment approach 1

[0015] Specific embodiment one: a kind of method utilizing gamma ray of the present embodiment to prepare graphene / nickel nanocomposite material is realized according to the following steps:

[0016] 1. Preparation of graphite oxide: the modified Hummer method is used to prepare graphite oxide by oxidation reaction with natural flake graphite as raw material;

[0017] Two, the graphite oxide prepared in step 1 is mixed with nickel salt, and then ultrasonically dispersed in deionized water to obtain a mixed solution; wherein, the mass ratio of graphite oxide and nickel salt in the mixed solution is 1: (1~4), and in the mixed solution The concentration of graphite oxide is 3-7g / L;

[0018] 3. Add isopropanol dropwise to the mixed solution, and then react under gamma ray irradiation to obtain the product; wherein, the volume ratio of the mixed solution to isopropanol is 1: (0.05~0.4), and the gamma The radiation dose is 20-80Gy / min, and the irradiation time is 4-8h;

[0019] 4....

specific Embodiment approach 2

[0024] Specific embodiment two: the difference between this embodiment and specific embodiment one is: adopt the improved Hummer method in the step one to carry out oxidation reaction and prepare the method for graphite oxide with natural flake graphite as raw material:

[0025] 1. Add 150ml of concentrated sulfuric acid with a mass concentration of 98% to the three-necked bottle, then add 6g of natural flake graphite to the three-necked bottle under an ice-water bath, stir and add 19.5g KMnO 4 , and then control the reaction temperature at 0-20°C for 1 hour, then react at 0-35°C for 2 hours to obtain a reaction solution;

[0026] 2. Transfer the reaction solution into 500ml of distilled water, react at 60°C for 1 hour, then transfer it to a mixture of 1400ml of distilled water and 100ml of 3% hydrogen peroxide, continue stirring for 24 hours, filter, wash, and dry at 60°C to complete graphite oxide preparation. Other parameters and steps are the same as in the first embodime...

specific Embodiment approach 3

[0027] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the nickel salt in step 2 is nickel acetate or nickel chloride. Other parameters and steps are the same as those in Embodiment 1 or Embodiment 2.

[0028] Verify beneficial effect of the present invention by following test:

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Abstract

The invention discloses a method for preparing a graphene / nickel nanocomposite material by utilizing a gamma ray, belongs to the field of crossing of the nanocomposite material and radiation chemistry, and in particular relates to a method for preparing the graphene / nickel nanocomposite material by utilizing the gamma ray. The problem that the graphene-nickel nanocomposite material prepared by the conventional method is high in cost and severely damages the environment is solved. The method comprises the following steps of: 1, preparing oxidized graphite; 2, preparing mixed solution; 3, reacting under the irradiation of the gamma ray to obtain a product; and 4, centrifugally separating, cleaning and drying the product to obtain the graphene / nickel nanocomposite material. The method is applied to the field of preparation of the graphene / nickel nanocomposite material.

Description

technical field [0001] The invention belongs to the cross field of nanocomposite materials and radiation chemistry, in particular to a method for preparing graphene / nickel nanocomposite materials by using gamma rays. Background technique [0002] Graphene is a two-dimensional (2D) planar single-layer graphite crystal, which is the basic structural unit for constructing other dimensional carbon materials (OD fullerene, 1D carbon nanotube, 3D graphite). Graphene has good crystallinity and excellent electrical, thermal and mechanical properties. Since it was successfully prepared in 2004, it has rapidly triggered an upsurge of research in various fields. Because graphene has many advantages such as excellent performance, low cost, and good processability, it will have broad application prospects in the fields of electronics, information, energy, materials, and medicine. [0003] The preparation technology of graphene is becoming more and more perfect, which has laid a good fou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04B82Y30/00B22F9/24C01B32/184
Inventor 赵弘韬张丽芳徐平李志刚
Owner TECHN PHYSICS INST HEILONGJIANG ACADOF SCI
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