Preparation method for graphene oxide

A graphene and graphene technology, which is applied in the field of graphene oxide preparation, can solve the problems of generating harmful gas, complicated processes, and the like, and achieves the effects of good dispersion and simple preparation process.
CN107601488AInactive Publication Date: 2018-01-19SHENZHEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN UNIV
Publication Date
2018-01-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention embodiment provides a preparation method for graphene oxide, and relates to the technical field of material preparation. The method comprises the following steps: placing a carbon-containing carbon source which is used as an anode and an electric conductive material which is used as a cathode into electrolyte water, electrifying the anode and the cathode with a direct current for three minutes or more to obtain a graphene oxide solution, and performing drying treatment on the graphene oxide solution to obtain the graphene oxide. According to the invention, in the preparation method for the graphene oxide, the water is used as an electrolyte and free of pollution, the graphene oxide has good dispersion in the solution, impurities are less and purification is not needed, and the preparation process is simple.
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Description

technical field

[0001] The invention belongs to the technical field of material preparation, in particular to a method for preparing graphene oxide. Background technique

[0002] Graphene is a two-dimensional carbon material with a hexagonal honeycomb structure and has excellent electrical conductivity of 106Ω -1 cm -1 (per ohm per centimeter), high charge carrier speed 2.0×10 5 cm 2 V -1 the s -1 (square centimeter per volt per second), high theoretical specific surface area 2630m 2 g -1 (square meter per gram), excellent mechanical properties (Young's modulus 1TPa (Tepa) and high thermal conductivity of about 5000Wm -1 K -1 (watt per meter per degree) and other excellent performance. Due to the above properties, graphene has attracted extensive attention in the fields of electronics, optically transparent electrodes, chemical catalysis, fuel cells, gas storage, construction, and metal anticorrosion. Graphene oxide (graphene oxide, GO) is one of the derivatives of...

Claims

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