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A kind of three-dimensional structure graphene powder material and optimized production method

A technology of graphene powder and production method, which is applied in the field of graphene, can solve the problems of difficult scale and industrialization, low specific surface area of ​​graphene, high production cost, etc., and achieve easy scale and industrial production, high specific surface area, and low cost Effect

Active Publication Date: 2019-03-08
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to overcome the problems of low specific surface area, high production cost, complex process, difficult scale and industrialization of graphene prepared in the prior art, and provides an optimized production method of graphene powder material with three-dimensional structure

Method used

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  • A kind of three-dimensional structure graphene powder material and optimized production method
  • A kind of three-dimensional structure graphene powder material and optimized production method
  • A kind of three-dimensional structure graphene powder material and optimized production method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] (1) Immerse 10g of hydrogen-form (PKS-1) ion exchange resin into 100ml potassium hydroxide solution (5M concentration) for 10 hours and then clean it, then immerse the cleaned resin in 100ml hydrochloric acid solution (5M concentration) for 10 hours, then clean it to obtain Standby; then the nickel acetate of 0.08mol is dissolved in deionized water, and the nickel metal ion salt solution that forms concentration is 0.02mol / L adds the above-mentioned spare 10g hydrogen type (PKS-1) ion exchange resin, magnetic stirring is even, makes ion The exchange resin adsorbs metallic nickel, and then washes the ion-exchange resin after adsorbing metallic nickel with deionized water, adds 10 g of the resin obtained after cleaning into an aqueous potassium hydroxide solution containing 10 g of pore-forming agent potassium hydroxide, stirs and dries, and pulverizes , that is, the sensitization treatment is completed;

[0028] (2) keeping the raw material after the sensitization treatm...

Embodiment 2

[0033] (1) Immerse 10g of free amine type (PKS-3) ion exchange resin into 100ml potassium hydroxide solution (5M concentration) for 10 hours and then clean it, then immerse the cleaned resin in 100ml hydrochloric acid solution (5M concentration) for 10 hours, then clean it. Gained for subsequent use; then the sodium hexanitrocobaltate of 0.02mol is dissolved in deionized water to form a concentration of 2mol / L cobalt metal ion salt solution and add the above-mentioned standby 10g free amine type (PKS-3) ion exchange resin, Stir evenly by magnetic force to make the ion exchange resin adsorb metal cobalt, then clean the ion exchange resin after adsorbing metal cobalt with deionized water, add 10 g of the obtained resin after cleaning to an aqueous potassium hydroxide solution containing 5 g of pore-forming agent potassium hydroxide , stirred and dried, crushed, and the sensitization treatment is completed;

[0034] (2) keeping the raw material after the sensitization treatment i...

Embodiment 3

[0039](1) Immerse 10g of hydrogen-form (PKS-1) ion exchange resin into 100ml potassium hydroxide solution (5M concentration) for 10 hours and then clean it, then immerse the cleaned resin in 100ml hydrochloric acid solution (5M concentration) for 10 hours, then clean it to obtain Standby; Then the ferric sulfate of 4mol is dissolved in deionized water, forms the iron metal ion salt solution that concentration is 1mol / L and adds above-mentioned spare 10g hydrogen type (PKS-1) ion exchange resin, magnetic stirring is even, makes ion exchange resin Adsorb metallic iron, then wash the ion-exchange resin after adsorbing metallic iron with deionized water, add 10 g of the resin obtained after cleaning into an aqueous potassium hydroxide solution containing 2 g of pore-forming agent potassium hydroxide, stir and dry, and pulverize, namely Complete the sensitization treatment;

[0040] (2) keeping the raw material after the sensitization treatment in step (1) at a temperature of 90° C...

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Abstract

The present invention relates to an optimal production method for a graphene powder material having a three-dimensional structure, comprising the following steps: (1) sensitizing a polymer, wherein sensitizing treatment comprises sequentially performing alkalization treatment, acidification treatment, metal ion exchange and pore-forming treatment on the source material; (2) drying the sensitized raw material obtained in step (1); (3) performing high-temperature pyrolysis treatment on the dried raw material obtained in step (2); (4) in a solvent, performing disintegration treatment on the sample following the high-temperature pyrolysis treatment in step (3); (5) performing metal recovery treatment on the sample following disintegration in step (4). The whole process for preparing the graphene powder material having a three-dimensional structure according to the method of the present invention does not require grinding and pulverization, thus optimizing cumbersome preparation processing when preparing graphene according to a conventional catalytic cracking method, simplifying the production procedure and reducing production costs.

Description

technical field [0001] The invention belongs to the technical field of graphene, in particular to a method for preparing graphene powder with a three-dimensional structure. Background technique [0002] Graphene is a kind of C atom through sp 2 The honeycomb-like two-dimensional structure materials formed by hybridization of electron orbitals have attracted much attention due to their excellent physical and chemical properties and potential application prospects since their discovery in 2004. However, the two-dimensional graphene materials produced in the market are mainly derived from the reduction method of graphene oxide, and its synthesis cost is high and the process is complicated. In addition, the graphene synthesized by the above method is usually affected by van der Waals force or dangling bond effect. After being made into a powder sample, it is easy to accumulate or agglomerate, and it is easy to agglomerate into graphite flakes, which loses many excellent charact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/19
CPCC01B32/19C01B2204/04
Inventor 沈培康田植群尹诗斌朱金良
Owner GUANGXI UNIV
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