Solvothermal coreduction method for preparing tin/graphene nanometer composite material

A technology of nanocomposite materials and graphene, which is applied in the field of solvothermal co-reduction method for preparing tin/graphene nanocomposite materials, can solve the problems of complex process and high cost, and achieve the effects of simple operation, low cost and high reduction degree.

Inactive Publication Date: 2018-10-02
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this preparation method needs to be carried out in an ice bath, and subsequent high-temperature annealing treatment is required, the process is complicated and the cost is high

Method used

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  • Solvothermal coreduction method for preparing tin/graphene nanometer composite material
  • Solvothermal coreduction method for preparing tin/graphene nanometer composite material
  • Solvothermal coreduction method for preparing tin/graphene nanometer composite material

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Embodiment 1

[0022] The solvothermal co-reduction method of preparing tin / graphene nanocomposite material in the present embodiment is as follows:

[0023] 1. Take 2.5ml of graphene oxide ethanol solution with a concentration of 3mg / ml and ultrasonically disperse for 1 hour, and set aside;

[0024] Dissolve 200mg of polyvinylpyrrolidone in 20ml of ethanol to prepare a solution for later use;

[0025] Dissolve 90mg of tin protochloride dihydrate in 10ml of ethanol to make a solution for later use;

[0026] Dissolve 200ml of sodium borohydride in 20ml of ethanol to make a solution for later use.

[0027] 2. At room temperature, add the ethanol solution of polyvinylpyrrolidone, the ethanol solution of stannous chloride dihydrate and the ethanol solution of graphene oxide into the reactor in sequence, and mix them evenly in an argon atmosphere;

[0028] 3. Add the ethanol solution of sodium borohydride to the mixed solution obtained in step 1, stir evenly at room temperature, and then perfor...

Embodiment 2

[0030] The solvothermal co-reduction method of preparing tin / graphene nanocomposite material in the present embodiment is as follows:

[0031] 1. Take 2.5ml of graphene oxide ethanol solution with a concentration of 3mg / ml and ultrasonically disperse for 1 hour, and set aside;

[0032] Dissolve 200mg of polyvinylpyrrolidone in 20ml of ethanol to prepare a solution for later use;

[0033] Dissolve 120mg of tin protochloride dihydrate in 10ml of ethanol to make a solution for later use;

[0034] Dissolve 200ml of sodium borohydride in 20ml of ethanol to make a solution for later use.

[0035] 2. At room temperature, add the ethanol solution of polyvinylpyrrolidone, the ethanol solution of stannous chloride dihydrate and the ethanol solution of graphene oxide into the reactor in sequence, and mix them evenly in an argon atmosphere;

[0036] 3. Add the ethanol solution of sodium borohydride to the mixed solution obtained in step 1, stir evenly at room temperature, and then perfo...

Embodiment 3

[0038] The solvothermal co-reduction method of preparing tin / graphene nanocomposite material in the present embodiment is as follows:

[0039] 1. Take 2.5ml of graphene oxide ethanol solution with a concentration of 3mg / ml and ultrasonically disperse for 1 hour, and set aside;

[0040] Dissolve 100mg of polyvinylpyrrolidone in 20ml of ethanol to prepare a solution for later use;

[0041] Dissolve 90mg of tin protochloride dihydrate in 10ml of ethanol to make a solution for later use;

[0042] Dissolve 100ml of sodium borohydride in 20ml of ethanol to make a solution for later use.

[0043] 2. At room temperature, add the ethanol solution of polyvinylpyrrolidone, the ethanol solution of stannous chloride dihydrate and the ethanol solution of graphene oxide into the reactor in sequence, and mix them evenly in an argon atmosphere;

[0044] 3. Add the ethanol solution of sodium borohydride to the mixed solution obtained in step 1, stir evenly at room temperature, and then perfor...

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Abstract

The invention discloses a solvothermal coreduction method for preparing a tin / graphene nanometer composite material. The method comprises the following steps: sequentially adding an ethanol solution of polyvinylpyrrolidone, an ethanol solution of dihydrate tin chloride and an ethanol solution of graphene oxide into a reactor sequentially and mixing uniformly in the argon environment; adding an ethanol solution of sodium borohydride into the mixed solution, stirring uniformly at a room temperature and performing reduction reaction; and after the reaction, washing and drying to obtain the tin / graphene nanometer composite material. The reduction degree of the graphene oxide in the tin / graphene nanometer composite material prepared by the method is high, equipment and the process are simple, and a green and environment-friendly method is provided for preparation of tin / graphene.

Description

technical field [0001] The invention relates to a preparation method of a nanocomposite material, in particular to a solvothermal co-reduction method for preparing a tin / graphene nanocomposite material. Background technique [0002] Since the discovery of graphene by Geim et al. at the University of Manchester in 2004, graphene has been extensively studied because of its unique physical and chemical properties. The study found that when it interacts with electromagnetic waves, it exhibits surface plasmon properties similar to noble metals. The resonant frequencies of graphene surface plasmons are mainly concentrated in long-wavelength bands such as infrared and terahertz, which limits its application range. However, the frequency of its surface plasmon resonance can be tuned by doping (such as metal nanoparticles), external electric field, etc. Therefore, the adjustment of the plasmonic properties of the graphene surface by metals by doping metals has aroused the interest ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/184C01B32/194C22C1/10
CPCC01P2002/01C01P2002/72C01P2002/82C22C1/1026C01B32/184C01B32/194
Inventor 鲁颖炜吴涵涵李彬仲洪海蒋阳
Owner HEFEI UNIV OF TECH
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