Method for preparing functionalized graphene oxide

A graphene and functionalization technology, applied in organic chemistry, etc., can solve the problem of graphene oxide dispersion not being well resolved, limited application, etc., and achieve low pollution, high utilization rate and simple operation method Effect
CN102746236AInactive Publication Date: 2012-10-24南京南工维明新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
南京南工维明新材料科技有限公司
Publication Date
2012-10-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing functionalized graphene oxide. The method is characterized in that the functionalized graphene oxide material having a soluble organic phase is prepared by reacting a graphene oxide water solution with an ortho-hydroxylaniline or ortho-phenylenediamine solution under the condition that polyphosphoric acid is used as a catalyst. The method for preparing functionalized graphene oxide has the following characteristics: (1) the group selectivity is high, and carboxyl functional groups on the graphene oxide lamella can be selectively utilized; (2) the product has good solubility and can be dissolved in common organic solvents; and (3) the advantages of simple operation method, low cost and the like are achieved. The technology well compensates for limitations of the traditional method for preparing the functionalized graphene oxide material, develops the functionalization path of the material, is expected to become the important step in chemical industry production of graphene-based materials, and has great potential applications in graphene-based composite materials, graphene-based photoelectric materials and organic photoelectric functional devices.
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Description

technical field

[0001] The invention belongs to the field of preparation of nanometer materials, specifically using polyphosphoric acid as a catalyst at room temperature to prepare organic phase-soluble functionalized graphite oxide by reacting an aqueous solution of graphene oxide with a solution of o-hydroxyaniline or o-phenylenediamine vinyl material. It has huge potential application value in graphene-based composite materials, graphene-based photoelectric materials and organic photoelectric functional devices. Background technique

[0002] Graphene and its derivatives are expected to become the best materials for building a new generation of nanoelectronic devices and a new generation of polymer additives due to their excellent physical properties and abundant sources of graphite precursors. However, due to the hydrophobic nature of graphene, it has only a small dispersion in solvents, which greatly limits its applications. The most effective way to solve this problem...

Claims

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