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Method for preparing graphitization nano carbon

A nano-carbon and graphitization technology, which is applied in the field of nano-carbon preparation, can solve the problems of low purity, uncontrollable shape, and low yield of graphitized nano-carbon, and achieve the effect of easy operation and simple method

Inactive Publication Date: 2009-06-17
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low yield, low purity and uncontrollable appearance of graphitized nano-carbon prepared in the prior art, and provide a kind of graphite Preparation method of nano carbon

Method used

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  • Method for preparing graphitization nano carbon
  • Method for preparing graphitization nano carbon
  • Method for preparing graphitization nano carbon

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specific Embodiment approach 1

[0008] Specific embodiment 1: The graphitized nanocarbon of this embodiment is prepared according to the following steps: 1. Coordination of carbon source and metal ions: mix the carbon source with the metal catalyst solution, stir for 12-24h, and then ultrasonically treat the mixture for 30-120min. Add the surfactant solution to it, and continue to stir for 1~3h; 2. Solidification of the complex: The mixed solution prepared in step 1 is vacuum dried at 20~100℃ for 2~24h, and then cooled to room temperature; 3. Heat treatment: 5 The temperature is increased to 400~1100℃ at a rate of ~20℃ / min, and the product of step 2 is heat-treated for 0.5~6h under the conditions of air flow rate of 60~250ml / min and temperature of 600~1100℃; 4. Activation treatment: Yes The product of step 3 is physically activated or chemically activated to obtain graphitized nanocarbon; wherein the weight ratio of the solute in the metal catalyst solution to the carbon source in step 1 is 0.025~0.05:2.5, and t...

specific Embodiment approach 2

[0015] Specific embodiment 2: The graphitized nanocarbon of this embodiment is prepared according to the following steps: 1. The carbon source is coordinated with the metal ion: the carbon source is mixed with the metal catalyst solution, stirred for 12 to 24 hours, and then ultrasonically treated for 30 to 120 minutes. Add the surfactant solution to it and continue to stir for 1~3h; 2. Solidification of the complex: dry the mixed solution prepared in step 1 at 20~80℃ for 2~24h in vacuum, and then cool to room temperature; 3. Heat treatment: Raise the temperature to 600~1100℃ at a rate of ~20℃ / min, and then heat the product of step 2 for 0.5~6h under the conditions of air flow of 60~250ml / min and temperature of 400~1100℃; 4. Activation treatment: Yes The product of step 3 is subjected to physical activation or chemical activation treatment; 5. Add 50ml of concentrated hydrochloric acid with a concentration of 12mol / L to the product prepared in step 4, and react at 90-100°C for 5-1...

specific Embodiment approach 3

[0017] Specific embodiment three: This embodiment is different from specific embodiment one or two in that the carbon source in step one is a polymer with polar groups, agricultural and forestry crop extracts or agricultural and forestry wastes; those with polar groups The polymer is one of polymethacrylic acid, polystyrene, polyfurfuryl alcohol, polyacrylamide, polyimine, polyurethane, polyglucosamine, polyethylene glycol, anion and cation exchange resin, polyvinyl alcohol, polyaniline or A mixture of several, the extracts of agricultural and forestry crops are glucose, sucrose, fructose or starch, and the agricultural and forestry wastes are beet residue, bagasse, corn stalks, reeds, cattail or wormwood. Others are the same as the first or second embodiment.

[0018] When there are two or more polymers with polar groups in this embodiment, the components are mixed in any ratio.

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Abstract

The invention relates to a method for preparing graphitized nano carbon, which relates to a method for preparing the nano carbon. The method solves the problems of low yield, low purity and uncontrollable shape in the prior art for preparing the graphitized nano carbon. The method comprises: coordination of carbon sources and metallic ions; complex curing; heat treatment; and activation treatment, so as to obtain the graphitized nano carbon. The graphitized nano carbon prepared by the method has high yield, high purity and controllable shape. The method is simple, easy to operate, and suitable for industrial production.

Description

Technical field [0001] The invention relates to a method for preparing nano carbon. Background technique [0002] Carbon materials have some special properties of metal, ceramics and polymer materials. With their unique properties and rich forms, they play an important role in human civilization and technological progress. The science of carbon materials began in the 1950s and has a history of more than 50 years. The discovery of fullerenes in 1985 and carbon nanotubes in 1991 opened up new horizons for the scientific research of carbon materials and sparked an upsurge of research on carbon nanomaterials. Many researches focused on the preparation and preparation of these two carbon materials. Functionalization and properties research. Almost at the same time, some nano-carbons with novel structures have attracted great attention from some researchers due to their special morphology and strange properties. For example, the polyhedral graphite particles in the carbon dust produced...

Claims

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Application Information

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IPC IPC(8): C01B31/04
Inventor 付宏刚王宝丽王蕾田春贵王瑞红田国辉
Owner HEILONGJIANG UNIV
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