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Method for preparing multilayer graphene-carbon material

A multi-layer graphene and carbon material technology, applied in graphene, nano-carbon and other directions, can solve the problems of no research results, patent application results, etc., and achieve the effects of simplifying the preparation process, improving electrical properties, and increasing output

Inactive Publication Date: 2012-06-27
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Method for preparing multilayer graphene-carbon material
  • Method for preparing multilayer graphene-carbon material
  • Method for preparing multilayer graphene-carbon material

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The reactant resorcinol, mass concentration is 37~40% formaldehyde solution, hexadecyltrimethylammonium bromide, deionized water according to resorcinol: formaldehyde solution: hexadecyltrimethylbromide The mass ratio of ammonium chloride: deionized water=1: 1.38: 0.0165: 1.46 is measured, and the reactant manganese acetate (C 4 h 6 MnO 4 4H 2 (0) is carried out with manganese acetate quality accounting for above-mentioned resorcinol, aqueous formaldehyde solution, hexadecyltrimethylammonium bromide and deionized water four kinds of raw material gross mass ratios are carried out, they are mixed homogeneously, obtain free Liquid precursors for shaped carbon materials;

[0032] Move the liquid precursor into a reaction bottle and seal it, heat it at 85°C for 5d, and then follow the following steps: dry at room temperature for 2d, dry at 60°C for 5h, and dry at 110°C for 5h to obtain an amorphous carbon material. solid precursor;

[0033] Put the solid precursor in a ...

Embodiment 2

[0037] In addition to manganese acetate (C 4 h 6 MnO 4 4H 2 O) quality accounted for resorcinol, aqueous formaldehyde solution, cetyltrimethylammonium bromide and deionized water four kinds of raw material total mass ratio is outside 9%, the preparation technology of the liquid precursor of amorphous carbon material and Example 1 is the same.

[0038] The solid precursor of the amorphous carbon material and the preparation process of the amorphous carbon material are also the same as in Example 1.

[0039] The preparation process of the multilayer graphene carbon material is also the same as in Example 1.

[0040] X-ray powder diffraction, laser Raman spectroscopy and transmission electron microscope analysis were performed on the multilayer graphene carbon material sample, and the obtained characteristics were also the same as in Example 1.

Embodiment 3

[0042] In addition to manganese acetate (C 4 h 6 MnO 4 4H 2 O) quality accounted for resorcinol, aqueous formaldehyde solution, cetyltrimethylammonium bromide and deionized water four kinds of raw material total mass ratio is outside 15%, the preparation technology of the liquid precursor of amorphous carbon material and Example 1 is the same.

[0043] Move the liquid precursor into a reaction bottle and seal it, heat it at 85°C for 4d, and then follow the following steps: dry at room temperature for 2d, dry at 60°C for 6h, and dry at 110°C for 6h to obtain an amorphous carbon material. solid precursor;

[0044] The solid precursor is placed in a crucible of inert material, and then the crucible is placed in a tube furnace. Under the protection of nitrogen, the temperature is raised to 900 ° C and kept for 3 hours, and then cooled to room temperature to obtain an amorphous carbon material;

[0045] The self-made amorphous carbon material and elemental metal sodium (mass r...

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Abstract

The invention relates to a method for preparing a multilayer graphene-carbon material. The method provided by the invention is characterized in that a home-made amorphous carbon material is transformed into the multilayer graphene-carbon material at a low temperature under normal pressure; and concretely, the method provided by the invention comprises the following steps that metal elements are doped into the home-made amorphous carbon material; and the home-made amorphous carbon material is transformed into the multilayer graphene-carbon material at a temperature of 500 to 1000 DEG C in the presence of an elemental metal sodium as a catalyst and a medium in the nitrogen or argon atmosphere. The method provided by the invention realizes that amorphous turbostratic carbon is transformed into multilayer graphene at a low temperature under normal pressure, inhibits the increasing of the number of piled carbon layers in carbon atom rearrangement, and prevents that a large amount of the multilayer graphene obtained in structure rearrangement is transformed into graphite crystals. The multilayer graphene-carbon material obtained by the method has wide application prospects in the fields of sensors, capacitors, catalysis and energy storage.

Description

technical field [0001] A method for preparing a multilayer graphene carbon material. The amorphous carbon material is first prepared by itself, and then transformed into multilayer graphene through structural reformation in a simple metal sodium melt, which belongs to the technical field of carbon material preparation. Background technique [0002] Multilayer graphene is a new quasi-two-dimensional carbon structure material that has just been discovered in recent years. Because of its unique structure between two-dimensional structure single-layer graphene and three-dimensional structure graphite crystal, it shows a series of excellent properties. Properties, such as high Young's modulus, high electrical conductivity, high thermal conductivity, high specific surface area, etc. It is precisely because of such excellent properties that multilayer graphene has a wide range of applications in capacitors, sensors, catalysis, energy storage and other fields, and is a new material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04C01B32/184
Inventor 徐子颉吉涛夏炳忠蔡东辉黄慧莹
Owner TONGJI UNIV
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