Method for preparing grapheme by means of aqueous phase cutting and stripping

A technology of graphene and graphite, which is applied in the field of graphene prepared by shear exfoliation in water phase, can solve the problems of low packing density of graphene powder, difficulty in application and transportation, limited dispersion ability, etc., and achieves convenience for further use and complete lattice structure , Ease of recycling
CN104445169AInactive Publication Date: 2015-03-25安徽百特新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
安徽百特新材料科技有限公司
Publication Date
2015-03-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing grapheme by means of aqueous phase cutting and stripping. The method comprises the following steps: 1) performing intercalation treatment on graphite serving as a raw material to prepare a graphite intercalation compound; 2) adding a certain amount of active substances, and cutting a graphite interlamination compound under a certain condition; and 3) centrifuging or filtering mixed liquid subjected to cutting treatment to prepare a high-concentration grapheme sizing agent or a filter cake which can be dispersed again. According to the method, the cutting operation is carried out by using low-cost reagents at a room temperature; because of low energy consumption, no pollution and high efficiency, the prepared graphene nanolamellas can be widely applied to the fields of energy storage and conversion, catalysis, various types of composite materials, paintings, conductive ink and the like.
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Description

technical field

[0001] The invention belongs to the technical field of graphene preparation, and relates to a method for preparing graphene by shear exfoliation in aqueous phase, in particular to a method for exfoliating graphite in an aqueous solution to form graphene through shearing treatment, and finally realizing low energy consumption and high yield of graphene High-efficiency and large-scale preparation methods. Background technique

[0002] As an ideal two-dimensional material, graphene has increasingly become a hot spot in current scientific research. Graphene is the basic structural unit of natural graphite, with a sheet thickness of only 0.335 nm. It has high mechanical modulus (1.0 TPa), thermal conductivity (5300 W / m.K), specific surface area (2630 m 2 / g) and charge mobility (250,000 cm 2 / V.s), has broad application prospects in polymer composite materials, energy materials, electronic communications and other fields. Therefore, the preparation of high-qual...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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