Preparation method of graphene/manganese dioxide composite material

A composite material, manganese dioxide technology, applied in graphene, chemical instruments and methods, manganese oxide/manganese hydroxide and other directions, can solve problems such as difficult removal, achieve uniform distribution, avoid agglomeration, and reduce internal resistance.
CN103588198AActive Publication Date: 2014-02-19SHANGHAI INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI INST OF TECH
Publication Date
2014-02-19

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Abstract

The invention discloses a preparation method of a graphene / manganese dioxide composite material. The preparation method comprises the following steps: graphite is ultrasonically stripped directly in an organic solvent to obtain a graphene dispersion liquid; a manganese ion salt is added in the obtained graphene dispersion liquid; graphene adsorbs added manganese ions to carry with positive charges; and an electrophoretic deposition method is adopted to prepare the graphene / manganese dioxide composite material. The graphene of the method is prepared by adopting the liquid-phase ultrasonic stripping method, and the oxidizing treatment is not implemented, so that the defects are fewer, and the complete structure of the graphene is retained; the electrophoretic deposition method can be adopted to evenly and controllably deposit the graphene / manganese dioxide composite material on the surface of any three-dimensional conducting matrix. The method has the advantages such as easiness in operation, low production cost, high product uniformity and easiness in control.
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Description

technical field

[0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a preparation method of a graphene / manganese dioxide composite material. Background technique

[0002] Since the discovery of graphene in 2004, it has attracted widespread attention of scientific researchers. Graphene has excellent mechanical, electronic, optical, and thermal properties, and has great potential application value in the fields of microelectronics, energy storage, catalysis, and biosensors. Due to its unique two-dimensional nanostructure, composite materials added with graphene often have excellent properties. For example, the literature (Chem.Soc.Rev.2012, 41, 666-686) introduces a large number of applications of graphene composites.

[0003] Manganese dioxide has attracted much attention due to its low price, abundant resources, environmental friendliness, convenient production, and excellent chemical and electrochemical stability. ...

Claims

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