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Preparation method and application of composite material

A composite material and composite material technology, which is applied in the field of composite material preparation and can solve the problems of electrical conductivity and crystallinity decline.

Inactive Publication Date: 2022-01-21
GUANGDONG BRUNP RECYCLING TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even though different carbonization processes of waste plastics have been explored, there are still few studies on the use of polystyrene carbonization products for energy storage devices. The fundamental reason is that the processing steps of template removal and KOH activation make the conductivity of polystyrene carbon products rate and crystallinity decrease

Method used

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  • Preparation method and application of composite material
  • Preparation method and application of composite material
  • Preparation method and application of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] This embodiment has prepared a kind of composite material, and specific preparation method is:

[0073] A1. Preparation of nickel mercaptide

[0074] A1a: NiCl 2 ·6H 2 O is dissolved in ethanol, and trimethylammonia is added to the solution to form triethylamine nickel complex, and the molar ratio of divalent nickel salt and trimethylamine is 1:2.

[0075] A1b: Add 2 times the molar mass of n-butanethiol to the complex solution, stir at 70°C for 5 hours to form a precipitate of n-butanethiol nickel, filter the precipitate, and wash it with acetonitrile and methanol for 5 times. The precipitate was dried at 80°C for 10 hours, and the dried nickel n-butanethiol was dissolved in toluene for later use.

[0076] A2. Preparation of composite materials

[0077] A2a: Cut waste polystyrene plastic plates into irregular shapes of 0.4-1.2 cm, wash them with 1mol / L hydrochloric acid at 50°C for 4 hours, filter them, and wash them with deionized water until neutral. The fragmen...

Embodiment 2

[0080] This embodiment has prepared a kind of supercapacitor, and specific preparation method is:

[0081] A2. Supercapacitor

[0082] A2a: Disperse the composite material in Example 1 into an isopropanol solution containing 10% perfluorosulfonic acid, then coat the slurry on a carbon cloth as an electrode, and separate it with a Celgard diaphragm in 3M KOH, thereby Assembled into a double-layer capacitor, the loading of the composite material is 0.4mg / cm 2 .

Embodiment 3

[0084] This embodiment has prepared a kind of composite material, and specific preparation method is:

[0085] A1. Preparation of nickel mercaptide

[0086] A1a: NiCl 2 ·6H 2 O is dissolved in ethanol, and trimethylammonia is added to the solution to form triethylamine nickel complex, and the molar ratio of divalent nickel salt and trimethylamine is 1:2.

[0087] A1b: Add 2 times the molar mass of n-butanethiol to the complex solution, stir at 70°C for 5 hours to form a precipitate of n-butanethiol nickel, filter the precipitate, and wash it with acetonitrile and methanol for 5 times. The precipitate was dried at 80°C for 10 hours, and the dried nickel n-butanethiol was dissolved in toluene for later use.

[0088] A2. Preparation of composite materials

[0089] A2a: Cut waste polystyrene plastic plates into irregular shapes of 0.4 to 1.2 cm, wash them with 1mol / L hydrochloric acid at 50°C for 4 hours, filter them, and wash them with deionized water until neutral. Place in...

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Abstract

The invention discloses a preparation method and application of a composite material, the preparation raw materials comprise nickel mercaptide, cube sugar and polystyrene, and the nickel mercaptide is used as a catalyst to improve the crystallinity of the sugar / polystyrene composite material in the hydrogenation process so as to improve the conductivity and electrochemical performance of the material; the porous cube sugar is used as a carbon source while being used as a soft template for bearing polystyrene and a catalyst, so that the carbonization degree of the material is improved, and the need of additional high-pressure carbon source supplementation in a high-temperature graphitization process is avoided; the preparation method of the composite material provided by the invention is green and environment-friendly, waste polystyrene can be effectively utilized and converted into a graphite carbon electrode with high capacity and long cycle stability under high magnification to be used as energy storage equipment, and the problem of large-scale white pollution at present is solved.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials, and in particular relates to a preparation method and application of a composite material. Background technique [0002] Because organic waste is difficult to be biodegraded and may have certain toxicity, its treatment is very important for the natural ecosystem. For the treatment of organic waste, such as polystyrene, landfill not only requires a large space, but also takes a lot of time to degrade; in addition, the collection and storage cost of polystyrene is high, so the recycling rate is low. At present, many researchers are also trying to convert polystyrene into high-value carbon materials to develop a variety of applications, such as converting polystyrene into electrode materials for energy storage devices, surface adsorbents for pollutants in water, and catalysts. [0003] Polystyrene is difficult to carbonize because at an intermediate temperature of 450°C (60...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/48
CPCH01G11/24H01G11/30H01G11/48
Inventor 张振华李长东范霞毛林林阮丁山蔡勇
Owner GUANGDONG BRUNP RECYCLING TECH
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