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Plastic graphene oxide composites and electrodes and methods for their preparation

A technology of graphene and composites, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve problems such as poor plasticity, and achieve the effects of expanding application range, suitable viscosity, and good plasticity

Active Publication Date: 2018-10-23
BEIJING TUNGHSU CARBON ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to solve the problem of the poor plasticity of the compound containing graphene oxide at present, and a kind of plastic graphene oxide compound and electrode and their preparation method are provided, to improve the plasticity of the graphene oxide compound, and then Expand the processable range of graphene oxide products and corresponding reduced graphene oxide products, and expand the application range of corresponding products

Method used

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  • Plastic graphene oxide composites and electrodes and methods for their preparation
  • Plastic graphene oxide composites and electrodes and methods for their preparation
  • Plastic graphene oxide composites and electrodes and methods for their preparation

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preparation example Construction

[0041] At the same time, the present invention also provides a method for preparing a plastic graphene oxide composite, the preparation method comprising the following steps: S1, preparing an aqueous solution of graphene oxide; S2, mixing the aqueous solution of graphene oxide with aniline , stirred to form a precipitate.

[0042] The present invention utilizes the surface and edge of graphene oxide due to the introduction of a large number of polar groups, so that it can be uniformly dispersed in water or other organic solvents. The characteristics of gravity, hydrogen bonding and π-π interaction make aniline combine with graphene oxide dispersed in water to form a precipitate, and then obtain the desired plastic graphene oxide composite. The method has simple process steps, is easy to operate, and is suitable for large-scale production.

[0043] According to the above-mentioned preparation method of the present invention, preferably, in step S1, an aqueous solution of graph...

Embodiment 1

[0066] It is used to illustrate the plastic graphene oxide composite and its preparation method of the present invention.

[0067] (1) Preparation of graphene oxide composites with plasticity:

[0068] Distilled water was added to the graphene oxide aqueous solution prepared above to dilute to prepare a graphene oxide aqueous solution with a graphene oxide concentration of 8 mg / mL;

[0069] Add 10 mL of the graphene oxide aqueous solution prepared above and 1 mL of aniline to a 20 mL isotope bottle, stir at room temperature (25°C) with a stirrer (800 rpm) for 24 hours, separate the excess water phase in the isotope bottle, and take out The precipitate is the required 3D printing material. figure 1 is the change diagram of the product of the mixture in the isotope bottle with time, such as figure 1 As shown, the color of the graphene oxide aqueous solution gradually becomes lighter, accompanied by the gradual generation of precipitates, wherein the produced precipitates are t...

Embodiment 2

[0073] It is used to illustrate the plastic graphene oxide composite and its preparation method of the present invention.

[0074] (1) Preparation of a plastic graphene oxide composite: Referring to Example 1, the difference is that 10 mL of the graphene oxide aqueous solution prepared above and 2 mL of aniline were added to a 20 mL isotope bottle.

[0075] (2) Composition and characterization of graphene oxide composites with plasticity:

[0076] After analysis, it can be seen that the graphene oxide composite contains graphene oxide, aniline and water, and based on 100% by weight of the graphene oxide composite, it contains 3.1% by weight of graphene oxide, 77.5% by weight of aniline and 19.4% by weight. The water of weight %; And the viscosity of this graphene oxide compound is 10000Pa.s.

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Abstract

The invention discloses a graphene oxide compound with plasticity, an electrode and a preparation method of the graphene oxide compound and the electrode. Main ingredients of the graphene oxide compound are graphene oxide, aniline and water. By characteristics that an electrostatic force exists between the graphene oxide and the aniline, and hydrogen bonds and Pi-Pi interact, the graphene oxide and the aniline are combined to each other together to prepare the graphene oxide compound with plasticity, the graphene oxide compound with plasticity has the advantages that the viscosity is suitable and the graphene oxide compound can be formed at normal temperature without being heated, and the graphene oxide compound can be used for manufacturing products in various shapes under the simple external condition. Moreover, the product containing the graphene oxide can be treated to obtain a corresponding reduced graphene oxide product (electrode material), then processing ranges of graphene oxide products and corresponding reduced graphene oxide products are expanded, and an application scope of corresponding products is extended.

Description

technical field [0001] The invention relates to the application field of graphene oxide, in particular to a plastic graphene oxide composite, an electrode and a preparation method thereof. Background technique [0002] Graphene is made of carbon atoms through sp 2 A compound with a two-dimensional planar structure formed by hybridization. Due to its two-dimensional conjugated structure, it has excellent electrical conductivity, thermal conductivity and stability, and is a material with good application prospects. In recent years, graphene has attracted people's attention and been extensively studied, and graphene-based applications have emerged in an endless stream. [0003] Graphene oxide is a carbon nanomaterial that introduces various oxygen-containing groups on the surface and edge of graphene after strong oxidation of graphite powder. Graphene oxide is one of the important derivatives of graphene and the most important precursor of graphene prepared by chemical metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/198
CPCC01P2004/01C01P2004/03C01P2006/40
Inventor 姜越王忠辉
Owner BEIJING TUNGHSU CARBON ADVANCED MATERIALS TECH CO LTD
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