Honeycomb-structured graphene aerogel ball and production method thereof

A technology of graphene airgel and graphene airgel ball, which is applied in the field of honeycomb structure graphene airgel ball and its preparation, can solve the limitation of airgel shape, insufficient airgel strength and rebound ability , high cost of freeze vacuum drying, etc., to achieve the effect of low cost, rapid production, and easy availability of raw materials
CN105645404AActive Publication Date: 2016-06-08杭州德烯科技集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
杭州德烯科技集团有限公司
Publication Date
2016-06-08

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Abstract

The invention discloses a honeycomb-structured graphene aerogel ball and a production method thereof. The production method includes the steps of firstly, well mixing graphene oxide, water and alkaline substances to obtain slurry; secondly squeezing the slurry into coagulation bath through a needle to obtain a graphene oxide gel ball; thirdly, soaking the graphene oxide gel ball into water, adding reducing agent, and performing heating reaction for 10 hours to obtain a reduced graphene oxide gel ball; fourthly, placing the reduced graphene oxide gel ball into a low-temperature environment, freezing for 1-2 hours, and unfreezing under room temperature; fifthly, drying in an oven of 60 DEG C after solvent soaking and washing to obtain a reduced graphene oxide aerogel ball; sixthly, performing high-temperature treatment on the reduced graphene oxide aerogel ball under argon protection to obtain the graphene aerogel ball. The production method has the advantages that the method is simple in process and suitable for large-scale production, and the graphene aerogel ball produced by the method is excellent in resilience, conductivity and mechanical performance.
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Description

technical field

[0001] The invention relates to a graphene airgel ball with a honeycomb structure and a preparation method thereof. Background technique

[0002] Graphene is a layer of carbon atoms with sp 2 A two-dimensional layer of carbon atoms formed by hybrid connections. It has many excellent properties such as ultra-high strength, large specific surface area, ultra-high thermal conductivity, and carrier mobility, and has important application value in the fields of electronic devices, energy storage, and composite materials (Geim, A.K. ; Novoselov, K.S., Nature Materials 2007, 6, 183). How to convert the excellent properties of graphene into the excellent properties of macroscopic materials is an important issue in graphene research.

[0003] The properties and preparation methods of graphene airgel reported before have the following three problems: first, the shape of the airgel is limited by the container; second, the strength and resilience of the prepared airge...

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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