Composite porous carbon material and preparation method and application thereof

A technology of porous carbon and composite carbon, applied in chemical instruments and methods, carbon compounds, multi-walled carbon nanotubes, etc., can solve the problem of not being able to fully reflect the advantages of graphene materials, affect the performance of composite porous carbon materials, and fail to meet practical applications Demand and other issues, to achieve high specific capacitance, reduce film cost, and good uniformity

Inactive Publication Date: 2018-06-29
山东省圣泉生物质石墨烯研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In related technologies, composite porous carbon materials are prepared by precursor compounding or in-situ polymerization, and the addition of graphene materials is often limited by precursor compounding or in-situ polymerization. Excessive graphene materials It is very easy

Method used

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  • Composite porous carbon material and preparation method and application thereof
  • Composite porous carbon material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0068] A method for preparing a composite porous carbon material, comprising:

[0069] 1) Curing and pulverizing the phenolic resin at 150°C for subsequent use;

[0070] 2) Put the pulverized material in a vacuum tube furnace, raise the temperature to 550 °C at a heating rate of 5 °C / min and keep the temperature constant for 2 hours to obtain a carbonized material;

[0071] 3) ultrasonically dispersing graphene oxide in distilled water to obtain a 0.5wt% graphene oxide material solution;

[0072] 4) Weigh 100 parts of the above dried carbonized material, add deionized water according to the ratio of carbonized material to deionized water 1:10 and stir evenly, and then follow the ratio of carbonized material: graphene oxide: hydrazine hydrate 100:0.01:0.01 , adding graphene oxide aqueous solution and hydrazine hydrate, stirring evenly;

[0073] 5) Pour the above suspension into a stainless steel reaction kettle lined with polytetrafluoroethylene, the filling degree of the rea...

Embodiment 2-6

[0076] Compared with Example 1, Examples 2-6 only changed the ratios of carbonized material, graphene oxide and hydrazine hydrate, respectively 100:0.1:0.1, 100:1:1, 100:5:5, 100:10 : 10 and 100: 20: 20, and the rest of the conditions are exactly the same.

Embodiment 7

[0078] A method for preparing a composite porous carbon material, comprising:

[0079] 1) The phenolic resin is cured at 150°C and pulverized for later use.

[0080] 2) Put the pulverized material in a vacuum tube furnace, raise the temperature to 550 °C at a heating rate of 5 °C / min and keep the temperature constant for 2 hours to obtain a carbonized material;

[0081] 3) ultrasonically dispersing graphene oxide and carbon nanotubes in distilled water to obtain a mixed solution of 0.5wt% graphene oxide and carbon nanotubes, the mass ratio of graphene oxide and carbon nanotubes being 1:0.1;

[0082] 4) Weigh 100 parts of the above-mentioned dried carbonized material, add deionized water according to the ratio of carbonized material to deionized water 1:10 and stir evenly, and then follow the carbonized material: graphene oxide / carbon nanotube mixed solution: hydrazine hydrate 100 : 0.01:0.01 ratio, add graphene oxide and carbon nanotube aqueous solution and hydrazine hydrate,...

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Abstract

The invention provides a composite porous carbon material and a preparation method and application thereof. The preparation method for the composite porous carbon material is characterized in that carbonized materials and graphene materials are adopted as raw materials, a composite carbon material is prepared through hydrothermal reaction, and the composite porous carbon material is obtained through activation and aftertreatment. By use of the method, the additive amount of the graphene materials can be effectively improved, the agglomeration of the graphene materials is avoided, the advantages of the graphene materials are fully performed, the specific surface area, the specific capacitance and the conduction performance of the composite porous carbon material can be effectively improved,and the overall performance of the composite porous carbon material can be improved. In addition, the preparation method for the composite porous carbon material has the advantages of simple technology and light pollution and conforms to the requirement of green development. The composite porous carbon material has the advantages of high specific surface area, high specific capacitance, good conduction performance and excellent overall performance and can be used for preparing electronic elements.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a composite porous carbon material and its preparation method and application. Background technique [0002] Porous carbon materials are widely used as electrode materials, adsorption materials, and catalytic materials due to their high specific surface area and rich pore structure. However, due to the well-developed pores of porous carbon, the proportion of carbon on the pore wall is low, and the contact area between porous carbon particles is small, resulting in defects in the amorphous carbon structure. Therefore, the electrical conductivity and mechanical properties of porous carbon materials are often not tall. Graphene materials have been widely concerned by researchers because of their high electrical conductivity and excellent mechanical properties. However, due to their structural characteristics, graphene materials have great problems when used alone. The ...

Claims

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Application Information

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IPC IPC(8): C01B32/336C01B32/194C01B32/184C01B32/168H01M4/62
CPCC01B2202/02C01B2202/06C01B2204/02C01B2204/04H01M4/625Y02E60/10
Inventor 唐地源盛杰张金柱任方华张安梁蒙蒙
Owner 山东省圣泉生物质石墨烯研究院
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