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Porous graphene composite material with microporous support and preparation method thereof

A technology of porous graphene and composite materials, which is applied in the field of nuclear technology applications, and can solve the problems of not being able to play a supporting role, and the diameter of small holes cannot be too large.

Active Publication Date: 2016-03-09
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the aperture of the small hole on the bracket should not be too large, otherwise it will not be able to play a good supporting role.

Method used

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  • Porous graphene composite material with microporous support and preparation method thereof
  • Porous graphene composite material with microporous support and preparation method thereof
  • Porous graphene composite material with microporous support and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: see figure 1 , figure 2 , a porous graphene composite material with a microporous support, comprising a single-layer graphene 1 on a polymeric film 2, a nanoscale hole 1-1 and a conic shape on the polymeric film 2 on the graphene 1 Holes 2-1 overlap and communicate;

[0029] The described area that is provided with single-layer graphene 1 on polymer film 2 is 5mm * 5mm;

[0030] The polymeric film 2 is polycarbonate with a thickness of 10 μm.

Embodiment 2

[0031] Example 2: see figure 1 , a porous graphene composite material with microporous support, the area of ​​the single-layer graphene 1 on the polymeric film 2 is 10mm×10mm. The polymeric film 2 is a polyethylene film with a thickness of 20 μm;

[0032] All the other structures are the same as in Example 1.

Embodiment 3

[0033] Embodiment 3: see figure 1 , a porous graphene composite material with microporous support, the area of ​​the single-layer graphene 1 on the polymeric film 2 is 20mm×20mm. The polymeric film 2 is a polycarbonate film with a thickness of 30 μm;

[0034] All the other structures are the same as in Example 1.

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Abstract

The invention discloses a method for preparing graphene nanoholes supported by micropores, and belongs to the fields of heavy ion beam application and film processing. A porous graphene composite material with microporous support includes a single-layer graphene on a polymeric film, and nano-scale holes on the graphene coincide with and communicate with tapered holes on the polymeric film. The invention adopts high-energy heavy ions to irradiate the graphene / polymer film composite structure, utilizes the radiation damage effect of heavy ions to form holes with a diameter of several nanometers on the graphene, and simultaneously produces columnar damage regions in the polymer film. Then, the irradiated area of ​​the polymer is etched by chemical etching to form tapered nanopores. Since the positions of the graphene holes and the tapered holes on the polymer coincide and communicate, graphene with microporous supports can be obtained. Nanopores, making graphene nanopores have broad application prospects in ion rectification, ion filtration and screening, and biomolecular detection.

Description

technical field [0001] The invention relates to using high-energy heavy ions as tools to irradiate a graphene / polymer composite structure to prepare graphene nanopores supported by micropores, which belongs to the application field of nuclear technology. Background technique [0002] Graphene is a nanomaterial with a two-dimensional structure composed of a single layer of carbon atoms. Due to its good electrical and thermal conductivity and high mechanical strength, it can be used to prepare semiconductor transistors and has broad application prospects. It is precisely because of its excellent performance and potential application prospects that the discoverer of single-layer graphene was awarded the 2010 Nobel Prize in Physics. [0003] With the continuous strengthening and deepening of the understanding of single-layer graphene, people have prepared nanopores with different pore sizes on single-layer graphene by various methods, and realized the detection of small particle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/04B32B3/24C01B31/04C01B32/182
Inventor 姚会军曾健莫丹段敬来刘杰孙友梅
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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