Composite material with layered three-dimensional ordered porous structure as well as preparation method and application of composite material

A three-dimensional ordered, porous structure technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., to achieve the effect of solving poor mechanical properties

Inactive Publication Date: 2017-08-08
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to combine the properties of the two to prepare layered three-dimensional ordered porous structure composites with better performance is still a challenge.

Method used

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  • Composite material with layered three-dimensional ordered porous structure as well as preparation method and application of composite material
  • Composite material with layered three-dimensional ordered porous structure as well as preparation method and application of composite material
  • Composite material with layered three-dimensional ordered porous structure as well as preparation method and application of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for preparing a layered three-dimensional ordered porous structure composite material, comprising the steps of:

[0042] (1) Weigh 120mg of ascorbic acid in a 30ml glass bottle, add 12ml of deionized water, stir and dissolve, add 80mg of copper nanowires and 8ml of graphene oxide aqueous solution (5mg / ml), ultrasonic 30min (copper nanowires and graphene oxide Mass ratio is 2:1), obtains mixed solution;

[0043] (2) heating the mixed solution obtained in step (1) to 40° C., and keeping it for 3 hours, and obtaining a composite film by vacuum filtration;

[0044] (3) The composite film described in step (2) was vertically immersed in liquid nitrogen for 1 min, then taken out and placed in a refrigerator, and dried to obtain a copper nanowire-graphene layered three-dimensional ordered porous structure composite material.

[0045] figure 1 The SEM figure of the copper nanowire-graphene layered three-dimensional ordered porous structure composite material prepared...

Embodiment 2

[0048] The preparation method of the layered three-dimensional ordered porous structure composite material in this example differs from that in Example 1 only in that: Step (2) is at 40° C. and the heating time is 4 hours.

[0049] Other steps of the preparation method of the layered three-dimensional ordered porous structure composite material in this embodiment are the same as in Embodiment 1.

[0050] image 3 The SEM figure of the copper nanowire-graphene layered three-dimensional ordered porous structure composite material prepared in this embodiment is shown, as can be seen from the figure, the copper nanowire-graphene composite structure has an obvious layered structure, And it has an ordered porous structure, and copper nanowires are distributed between graphene sheets.

Embodiment 3

[0052] The preparation method of the layered three-dimensional ordered porous structure composite material in this example differs from that in Example 1 only in that the heating time at 40° C. is 5 hours.

[0053] Other steps of the preparation method of the layered three-dimensional ordered porous structure composite material in this embodiment are the same as in Embodiment 1.

[0054] Figure 4 The SEM figure of the copper nanowire-graphene layered three-dimensional ordered porous structure composite material prepared in this embodiment is shown, as can be seen from the figure, the copper nanowire-graphene composite structure has an obvious layered structure, And it has an ordered porous structure, and copper nanowires are distributed between graphene sheets.

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PUM

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Abstract

The invention discloses a composite material with a layered three-dimensional ordered porous structure as well as a preparation method and application of the composite material. The preparation method of the composite material comprises the following steps: firstly, preparing copper nanowires and graphene oxide, weighing ascorbic acid, dissolving the ascorbic acid into the deionized water, stirring and dissolving; secondly, adding the copper nanowires and the graphene oxide, and carrying out uniform ultrasonic dispersion; heating a mixed solution to a certain temperature and maintaining for a certain time; carrying out suction filtering, liquid nitrogen directional freezing and drying to obtain the copper nanowire-graphene oxide composite material with the layered three-dimensional ordered porous structure. The copper nanowire-graphene oxide composite material with the layered three-dimensional ordered porous structure, prepared by the method, has the three-dimensional ordered porous structure and has the advantages of excellent mechanical property, high ratio of the copper nanowires, high porosity and electrical conductivity, good thermal conductivity and the like, and can be applied to the fields of resistive transducers, flexible conductors, supercapacitors, thermal conductive materials and the like.

Description

technical field [0001] The invention belongs to the fields of three-dimensional structural composite materials, intelligent electronic materials, heat-conducting materials and new energy sources, and specifically relates to a layered three-dimensional ordered porous structure composite material and its preparation method and application, in particular to a copper nanowire-graphene layer Three-dimensional ordered porous structure composite material and its preparation method and application. Background technique [0002] In recent years, due to the good conductivity of copper nanowires (5.96×10 7 S m -1 ), abundant reserves (the content in the earth's crust is 1000 times that of silver), low cost (Cu: $9kg -1 , Ag: $1000kg -1 ) and other advantages have attracted more and more attention, and have become the most promising electrical and thermal conduction elements in the fields of smart electronic materials, thermal conductive materials, and flexible electronics. Graphene...

Claims

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Application Information

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IPC IPC(8): C01B32/194
CPCC01P2002/72C01P2004/03C01P2006/32C01P2006/40
Inventor 张国平黄汪平孙蓉
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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