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A kind of preparation method of graphene-supported tin-nickel nano-alloy particle composite material

A nano-alloy and composite material technology, applied in the field of materials, can solve problems that do not conform to the characteristics of general composite materials, and achieve the effects of stable product shape, uniform heating, and high cycle life

Inactive Publication Date: 2016-08-24
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the size of the dispersed phase of the nanocomposite material is in the junction area between the atomic cluster and the macroscopic object, there will be some special changes in the physical and chemical properties of the material, which do not conform to the characteristics of general composite materials.

Method used

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  • A kind of preparation method of graphene-supported tin-nickel nano-alloy particle composite material
  • A kind of preparation method of graphene-supported tin-nickel nano-alloy particle composite material
  • A kind of preparation method of graphene-supported tin-nickel nano-alloy particle composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1) Synthesis of graphite oxide by Hummers method

[0047] In the first step, weigh 1g of natural flake graphite and 0.5g of sodium nitrate, add them into a 250mL three-neck round bottom flask, and then slowly add 24ml of concentrated sulfuric acid. The reaction process of the system was mechanically stirred in an ice-water bath;

[0048] In the second step, 2 g of potassium permanganate is slowly added during the stirring process, and the reaction temperature is controlled within 10±2° C. by adjusting the adding speed. After the addition is complete, continue to stir at low temperature for 0.5~2h;

[0049] The third step is to replace the ice-water bath with an oil bath for heating, control the temperature at 35±3°C, and continue to stir for 5~24h;

[0050] In the fourth step, slowly add 48mL deionized water several times for dilution;

[0051] Step 5: After stirring for 0.5h, add 70mL of deionized water at 60°C, and add 5~10mL of 30% hydrogen peroxide. At this time,...

Embodiment 2

[0062] In the first step, weigh 1g of natural flake graphite and 1g of sodium nitrate, add them into a 250mL three-neck round bottom flask, and then slowly add 24ml of concentrated sulfuric acid. The reaction process of the system was mechanically stirred in an ice-water bath;

[0063] In the second step, 3 g of potassium permanganate is slowly added during the stirring process, and the reaction temperature is controlled within 10±2° C. by adjusting the adding speed. After the addition is complete, continue to stir at low temperature for 0.5~2h;

[0064] The third step is to replace the ice-water bath with an oil bath for heating, control the temperature at 35±3°C, and continue to stir for 5~24h;

[0065] In the fourth step, slowly add 48mL deionized water several times for dilution;

[0066] Step 5: After stirring for 0.5h, add 70mL of deionized water at 60°C, and add 5~10mL of 30% hydrogen peroxide. At this time, the reaction product will quickly turn bright yellow;

[00...

Embodiment 3

[0076] In the first step, weigh 1g of natural flake graphite and 2g of sodium nitrate, add them into a 250mL three-neck round bottom flask, and then slowly add 24ml of concentrated sulfuric acid. The reaction process of the system was mechanically stirred in an ice-water bath;

[0077] In the second step, slowly add 2~5g of potassium permanganate during the stirring process, and control the reaction temperature within 10±2°C by adjusting the adding speed. After the addition is complete, continue to stir at low temperature for 0.5~2h;

[0078] The third step is to replace the ice-water bath with an oil bath for heating, control the temperature at 35±3°C, and continue to stir for 5~24h;

[0079] In the fourth step, slowly add 48mL deionized water several times for dilution;

[0080] Step 5: After stirring for 0.5h, add 70mL of deionized water at 60°C, and add 5~10mL of 30% hydrogen peroxide. At this time, the reaction product will quickly turn bright yellow;

[0081] Step 6: ...

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Abstract

The invention relates to a method for preparing a graphene carrying tin-nickel nano-alloy particle composite material. The method comprises the following steps of weighing graphite oxide, tin salt and nickel salt and putting the weighed graphite oxide, tin salt and nickel salt into a solvent, evenly mixing the solution through ultrasonic, then adding hydrazine hydrate into the mixed solution, evenly mixing the solution through ultrasonic again, heating the solution for reaction, and carrying out centrifugal separation, washing and product collection after the reaction is finished to obtain the graphene carrying tin-nickel nano-alloy particle composite material. The method for preparing the graphene carrying tin-nickel nano-alloy particle composite material is simple in technology, preparation conditions are general, morphological structures of the products are stable, purity is high, the products are convenient and easy to treat, and the method is suitable for middle-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of materials, in particular to a method for preparing a graphene-supported tin-nickel nano-alloy particle composite material. Background technique [0002] The concept of nanocomposites was first proposed by Roy and Komarneni in the early 1980s. Nanocomposites are different from a single nanocrystalline material or nanoamorphous material. It consists of two or more materials in different phases. At least one phase in the composite structure is at the nanoscale in one dimension, that is, one or more components have at least one dimension between 0.1nm and 100nm, and the dispersed phase is dispersed in the matrix close to the molecular level. In nanocomposites, the nanoscale dispersed phase not only increases the interface area of ​​the two phases, but also greatly enhances the interaction between the interfaces due to its nanoscale effect. Since the size of the dispersed phase of the nanocomposite material i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24B22F1/00
Inventor 温鸣陈世培吴艳歌
Owner TONGJI UNIV
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