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Graphene oxide reinforced composite carbon nanopaper and production method thereof

A graphene and nano-carbon technology, applied in the field of nano-carbon material preparation, can solve problems such as poor mechanical strength, and achieve the effects of low cost, easy operation and easy preparation

Active Publication Date: 2015-05-20
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a composite nano-carbon paper made of graphene oxide-reinforced carbon nano-tube paper for the shortcomings of the existing carbon nano-tube paper, such as poor mechanical strength. connection, forming a reinforced network in carbon nanotube paper, thereby greatly improving the mechanical properties of carbon nanotube paper

Method used

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  • Graphene oxide reinforced composite carbon nanopaper and production method thereof
  • Graphene oxide reinforced composite carbon nanopaper and production method thereof
  • Graphene oxide reinforced composite carbon nanopaper and production method thereof

Examples

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Effect test

Embodiment 1

[0064] Example 1 Weigh 475 mg of carbon nanotubes purified by hydrochloric acid, and disperse them in 1 L of deionized water. The dispersant is polyvinylpyrrolidone, and stir for several minutes with a high-shear mixer until the carbon nanotubes form a slurry-like distribution in the dispersion. Weigh 25 mg of graphene oxide, disperse it in 1L of deionized water, and stir it with a high-shear mixer for several minutes until the graphene oxide forms a slurry-like distribution in the dispersion. Mix the dispersion of carbon nanotubes and the dispersion of graphene oxide, and stir them with a mixer for several minutes to mix them evenly to form a stable dispersion. Spread the cellulose filter paper on the bottom of a Buchner funnel with a diameter of 25 cm, and filter it with a vacuum pump, so that the mixed dispersion of carbon nanotubes and graphene oxide is evenly deposited on the filter paper, and when it is semi-dry, the graphene oxide / carbon nanotubes The composite nanoca...

Embodiment 2

[0065] Example 2 Weighed 450 mg of carbon nanotubes purified by hydrochloric acid, weighed 50 mg of graphene oxide, and prepared composite nanocarbon paper with a graphene oxide content of 10% by the same method as in Example 1. Its cross-sectional structure is as Figure 3b shown.

Embodiment 3

[0066] Example 3 Weighed 425 mg of carbon nanotubes purified by hydrochloric acid, weighed 75 mg of graphene oxide, and prepared composite nanocarbon paper with a graphene oxide content of 15% by the same method as in Example 1. Its structure is as Figure 3c shown.

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Abstract

The invention discloses a graphene oxide reinforced composite carbon nanopaper and a production method thereof. The above carbon paper includes: a carbon nanotube substrate including a skeleton network mainly formed by carbon nanotubes; and at least an enhanced network for connecting the carbon nanotubes in the skeleton network, wherein the enhanced network is mainly formed by graphene oxide dispersed in the skeleton network. The production method comprises the following steps: uniformly mixing a carbon nanotube dispersion with a graphite oxide graphene dispersion filtering to form a film, and peeling the formed film from a substrate filter film in order to obtain a target product. The composite carbon nanopaper has greatly improved mechanical properties, has no apparent loss of the excellent electrical conductivity or thermal conductivity, fully solves the problem of poor mechanical strength of present carbon tube nanopaper, and has the characteristics of electrical conduction, thermal conduction, light weight, flexibility and high efficiency. The production method has the advantages of simplicity, easy operation, good controllability, low cost and wide application prospect.

Description

technical field [0001] The invention relates to a paper-like material formed based on carbon nanotubes and the like, in particular to a composite nanocarbon paper made of graphene oxide reinforced carbon nanotube paper and a preparation method thereof, belonging to the technical field of nanocarbon material preparation. Background technique [0002] Carbon nanotubes have excellent mechanical, thermal and electrical properties, and have been widely used in the fields of electronic devices and composite materials in recent years. Moreover, carbon nanotubes have overcome the self-supporting structure of the array that must rely on the substrate. For example, the method for preparing carbon nanotube paper by suction filtration of dispersion liquid described in the patent application for invention with the publication number CN 102351165 A has achieved large-area self-supporting structures. Preparation of supported carbon nanotube paper. At present, carbon nanotube paper has bee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
Inventor 李清文邢亚娟陈名海
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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