Nitrogen-doped graphene carbon composite material and preparation method thereof
The invention discloses a nitrogen-doped graphene carbon composite material and a preparation method thereof. The composite material comprises nitrogen-doped graphene and a nitrogen-doped carbon material covering the periphery of the nitrogen-doped graphene. The preparation method comprises the foll...
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Main Authors | , , , , , , |
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Format | Patent |
Language | English |
Published |
25.03.2015
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a nitrogen-doped graphene carbon composite material and a preparation method thereof. The composite material comprises nitrogen-doped graphene and a nitrogen-doped carbon material covering the periphery of the nitrogen-doped graphene. The preparation method comprises the following steps: dissolving carbohydrate into graphene oxide dispersion liquid to ensure that carbohydrate uniformly covers the graphene oxide to form a graphene oxide/carbohydrate complex; coating the surface of the graphene oxide/carbohydrate complex by a polymer to form a graphene oxide/carbohydrate/polymer complex; nitriding the graphene oxide/carbohydrate/polymer complex in a high-temperature environment at the temperature of more than 700 DEG C to form the nitrogen-doped graphene carbon composite material. The composite material is high in specific surface area, less in aggregates, high in dispersibility and high in conductivity; the preparation is simple and feasible in process, low in energy consumption, high in yield and suitable for scale industrial production; moreover, freeze drying operation is eliminated. |
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Bibliography: | Application Number: CN20141719551 |