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Preparation method of graphene-carbon nanotube-nano tin dioxide three-dimensional composite material and product thereof

A nano-tin dioxide, carbon nanotube technology, applied in the directions of tin oxide, carbon compounds, chemical instruments and methods, can solve the problems of complex preparation process, expensive equipment, structural defects, etc., and achieve uniform distribution, low cost, Lightweight effect

Inactive Publication Date: 2013-05-22
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, Chen Zongping disclosed a three-dimensional structure prepared by vapor deposition Graphene method, but the preparation process is more complicated and requires expensive equipment
In addition, Shen Shuling et al. disclosed a method of using noble metals and glucose to make graphene oxide A method of assembling into a three-dimensional structure in a solution, but the obtained graphene material exhibits low conductivity due to problems such as the introduction of glucose, incomplete reduction of oxides, and structural defects

Method used

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  • Preparation method of graphene-carbon nanotube-nano tin dioxide three-dimensional composite material and product thereof
  • Preparation method of graphene-carbon nanotube-nano tin dioxide three-dimensional composite material and product thereof
  • Preparation method of graphene-carbon nanotube-nano tin dioxide three-dimensional composite material and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]Using deionized water as a solvent, add graphene oxide, stannous chloride and multi-walled carbon nanotubes as solutes in sequence and perform mixing and stirring for about 30 minutes. The proportion of ingredients is controlled as per 100ml of deionized water, graphene oxide, The mass ratio of stannous and multi-walled carbon nanotubes is 120mg: 12mg: 60mg, respectively;

[0033] Next, the obtained mixed solution was ultrasonically reacted at a temperature of 25°C for 1 hour, wherein the ultrasonic power was set to 300W, thereby generating reactants comprising graphene oxide, tin dioxide and multi-walled carbon nanotube precursors;

[0034] The resulting solution is transferred to a reaction vessel such as a polytetrafluoroethylene hydrothermal kettle, hydrothermally treated at a temperature of 120°C for 72 hours, and then slowly cooled to room temperature, which is about 25°C, to obtain a graphene-carbon with a three-dimensional structure The nanotube-nanometer tin dio...

Embodiment 2

[0036] Using deionized water as a solvent, add graphene oxide, stannous chloride and multi-walled carbon nanotubes as solutes in sequence and perform mixing and stirring for about 30 minutes. The proportion of ingredients is controlled as per 100ml of deionized water, graphene oxide, The mass ratio of stannous and multi-walled carbon nanotubes is 160mg: 16mg: 100mg respectively;

[0037] Next, the obtained mixed solution was ultrasonically reacted at a temperature of 40°C for 2 hours, wherein the ultrasonic power was set to 100W, thereby generating reactants comprising graphene oxide, tin dioxide and multi-walled carbon nanotube precursors;

[0038] The resulting solution is transferred to a reaction vessel such as a polytetrafluoroethylene hydrothermal kettle, hydrothermally treated at a temperature of 200°C for 12 hours, and then slowly cooled to room temperature to obtain a graphene-carbon nanotube-nanodicarbonate with a three-dimensional structure. The tin oxide composite ...

Embodiment 3

[0040] Using deionized water as a solvent, add graphene oxide, stannous chloride and multi-walled carbon nanotubes as solutes in sequence and perform mixing and stirring for about 30 minutes. The proportion of ingredients is controlled as per 100ml of deionized water, graphene oxide, The mass ratio of stannous and multi-walled carbon nanotubes is 130mg: 13mg: 80mg respectively;

[0041] Next, the obtained mixed solution was ultrasonically reacted at a temperature of 40°C for 2 hours, wherein the ultrasonic power was set to 200W, thereby generating reactants comprising graphene oxide, tin dioxide and multi-walled carbon nanotube precursors;

[0042] The resulting solution is transferred to a reaction vessel such as a polytetrafluoroethylene hydrothermal kettle, hydrothermally treated at a temperature of 180°C for 24 hours, and then slowly cooled to room temperature to obtain a graphene-carbon nanotube-nanodicarbonate with a three-dimensional structure. The tin oxide composite m...

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Abstract

The invention discloses a preparation method of a graphene-carbon nanotube-nano tin dioxide three-dimensional composite material, which comprises the following steps: (a) by using deionized water as a solvent, sequentially adding graphene oxide, stannous dichloride and multiwall carbon nanotubes as solutes, and mixing; (b) performing ultrasonic reaction on the mixed solution at 25-40 DEG C under the ultrasonic power of 100-300W for 1-2 hours; and (c) transferring the solution subjected to ultrasonic reaction into a hydrothermal kettle, performing hydrothermal treatment at 120-300 DEG C for 6-72 hours, and slowly cooling to room temperature, thereby obtaining the three-dimensional-structure graphene-carbon nanotube-nano tin dioxide composite material product. The invention also discloses a corresponding product and application thereof. The method disclosed by the invention can be used for preparing the three-dimensional-structure graphene composite material in an economic environment-friendly and convenient-operation mode; and the graphene-carbon nanotube-nano tin dioxide three-dimensional composite material has the characteristics of high specific surface area, porousness, light weight, long cycle life and the like.

Description

technical field [0001] The invention belongs to the field of new energy composite materials, and more specifically relates to a preparation method of a graphene-carbon nanotube-nano tin dioxide three-dimensional composite material and a product thereof. Background technique [0002] For devices such as supercapacitors, lithium-ion battery anodes, fuel cells, and field-effect transistors, one of the effective ways to improve the supercapacitive performance of materials is to design porous materials by preparing three-dimensional self-assembled bodies with porous structures. Not only can it provide a large reactive area, but it can also provide a good short-distance diffusion channel for the reactant ions. For example, as a high-energy, green energy storage device with performance between batteries and traditional capacitors, supercapacitors are widely used in electric vehicles, It has broad application prospects in the fields of communication and electronic consumption. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04C01B31/02C01G19/02B82Y30/00H01G11/32H01G11/46C01B32/168C01B32/194
CPCY02E60/13
Inventor 王帅孙泰张哲野尹强戴军
Owner HUAZHONG UNIV OF SCI & TECH
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