Method for preparing nano Cu3.8 Ni alloy loaded on graphene by liquid phase reduction method

A technology of graphene and reduction method, applied in the direction of nanotechnology, etc., can solve the problems of difficult handling of surfactants, achieve good dispersion, avoid the generation of oxides, and the effect of simple method

Inactive Publication Date: 2015-04-01
HEILONGJIANG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to use graphene as surfactant, in order to solve the problem that existing surfactant is difficult to handle, and provide the method for preparing graphene-loaded nanometer Cu3.8Ni alloy by liquid phase reduction method

Method used

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  • Method for preparing nano Cu3.8 Ni alloy loaded on graphene by liquid phase reduction method
  • Method for preparing nano Cu3.8 Ni alloy loaded on graphene by liquid phase reduction method

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specific Embodiment approach 1

[0020] Specific embodiment one: the liquid phase reduction method of this embodiment prepares graphene-supported nano-Cu 3.8 The method of Ni alloy, it is to carry out according to the following steps:

[0021] Step 1: Preparation of Graphene Oxide

[0022] Mix graphite powder and concentrated sulfuric acid at a mass volume ratio of 1g: 40-60mL, and stir in an ice-water bath at 0-4°C for 30 minutes to obtain a mixed solution; keep the mixed solution in an ice-water bath, and add After sodium nitrate, add potassium permanganate, then stir for 2 hours, turn to room temperature and continue stirring for 1 hour to obtain a mixed solution; then place the mixed solution in a 35°C water bath for 10 hours, dilute the mixed solution to the original solution concentration with distilled water 10% of hydrogen peroxide, and add hydrogen peroxide until the mixed solution changes color, then add dilute hydrochloric acid of 1\50 times the volume of the diluted mixed solution, then cool the ...

specific Embodiment approach 2

[0026] Embodiment 2: This embodiment differs from Embodiment 1 in that the mass volume ratio of sodium nitrate to the mixed solution in Step 1 is 1 g: 32-38 mL. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0027]Embodiment 3: This embodiment differs from Embodiment 1 in that the mass-volume ratio of sodium nitrate to the mixed solution in Step 1 is 1 g: 34-36 mL. Others are the same as in the first embodiment.

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Abstract

The invention relates to a method for preparing nano Cu3.8 Ni alloy loaded on graphene, in particular to a method for preparing the nano Cu3.8 Ni alloy loaded on the graphene by a liquid phase reduction method. The method takes the graphene as a surface active agent, and solves the problem that the existing surface active agent is difficult to treat. The method comprises the steps of firstly, preparing graphene oxide, and then mixing CuSO4 5H2O solution, NiSO4 6H2O solution, NaOH solution and hydrazine hydrate solution with the graphene oxide for treatment. Related report of preparing the nano Cu3.8 Ni alloy loaded on the graphene by a reduction method is not reported yet; the method is simple and fast, and any surface modifying agent does not need to be added. After the reduction method is adopted, nano alloy particles loaded on the graphene are well dispersed and are uniform in size and smaller in particle size. The hydrazine hydrate is taken as a reducing agent, and a great deal of N2 is generated in the reaction process, so that the oxide is effectively prevented from being generated in the reduction process under the protection of the N2.

Description

technical field [0001] The invention relates to the preparation of graphene loaded nano Cu 3.8 Ni alloy method. Background technique [0002] Graphene is made of carbon atoms with sp 2 The monoatomic layer of the hexagonal close-packed honeycomb structure formed by hybridization is the first two-dimensional atomic crystal discovered by humans. Graphene can be seen as the basic building block of many carbon allotropes. The thickness of graphene is only 0.335nm, which is the thinnest known material in the world. Due to its unique two-dimensional nanostructure, large specific surface area, excellent electrical conductivity and good chemical stability, graphene has good applications in the fields of transistors, solar cells, sensors, supercapacitors, field emission and catalyst supports. At the same time, it has become an ideal carrier for the preparation of graphene-loaded composite materials. [0003] Metal nickel is a kind of magnetic metal material, which is widely used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B82Y40/00
Inventor 赵东宇付敬雯王琳张锡文于悦毕昌隆
Owner HEILONGJIANG UNIV
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