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Preparation method of ferrothiofluorine or chloride modified three-dimensinoal graphene composite material

A composite material, chloride technology, applied in graphene, iron oxide/iron hydroxide, iron oxide and other directions, to achieve the effect of simple method, short production cycle, rich mesoporous microporous structure

Inactive Publication Date: 2018-06-15
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After literature research, there is no report on three-dimensional graphene composites modified by iron-based oxides, sulfides, fluorides or chlorides

Method used

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  • Preparation method of ferrothiofluorine or chloride modified three-dimensinoal graphene composite material
  • Preparation method of ferrothiofluorine or chloride modified three-dimensinoal graphene composite material
  • Preparation method of ferrothiofluorine or chloride modified three-dimensinoal graphene composite material

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Experimental program
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Effect test

Embodiment 1

[0025] Weigh polyvinylpyrrolidone K30 powder and Fe(NO 3 ) 3 9H 2 The powder with O mass fraction of 1:1 was dissolved in deionized water and stirred ultrasonically for 10 min, and the product after the mixed solution was completely dried in a drying oven was ground into a powder, and the powder was transferred to a tubular sintering furnace under N 2 The three-dimensional graphene composite material decorated with iron carbide nanoparticles was obtained by keeping it at 700°C for 2 hours in the atmosphere. Take 0.12g of the three-dimensional graphene composite material decorated with iron carbide nanoparticles and keep it at 300°C in the air atmosphere of the tubular sintering furnace for 1.5h to obtain Three-dimensional graphene composites decorated with iron oxide nanoparticles.

Embodiment 2

[0027] Weigh polyvinylpyrrolidone K30 powder and Fe(NO 3 ) 3 9H 2 The powder whose mass fraction is 1:1.5 was dissolved in deionized water and stirred ultrasonically for 15 min, and the product after the mixed solution was completely dried in a drying oven was ground into a powder, and the powder was transferred to a tubular sintering furnace under N 2 Keep warm at 700°C for 2 hours in the atmosphere to obtain iron carbide nanoparticles modified three-dimensional graphene composites. Take 0.2g iron carbide nanoparticles modified three-dimensional graphene composites and mix them with 0.4g sublimated sulfur, and heat them in a tubular sintering furnace with nitrogen atmosphere at 300°C. Insulated for 2 hours under the same conditions to obtain a three-dimensional graphene composite material decorated with iron sulfide nanoparticles.

Embodiment 3

[0029] Weigh polyvinylpyrrolidone K30 powder and Fe(NO 3 ) 3 9H 2 The powder whose mass fraction is 1:1.2 was dissolved in deionized water and stirred ultrasonically for 20min, and the product after the mixed solution was completely dried in a drying oven was ground into a powder, and the powder was transferred to a tubular sintering furnace under N 2 In the atmosphere, keep warm at 700°C for 2 hours to obtain iron carbide nanoparticles modified three-dimensional graphene composite materials. Take 0.21g of iron carbide nanoparticles modified three-dimensional graphene composite materials and mix them with 0.64g of ammonium fluoride. The temperature was kept at ℃ for 2 hours to obtain a three-dimensional graphene composite material decorated with ferric fluoride nanoparticles.

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Abstract

The invention provides a preparation method of a ferrothiofluorine or chloride modified three-dimensinoal graphene composite material. The method comprises the following steps: dissolving ferric nitrate and polyvinylpyrrolidone into deionized water, and stirring to prepare a mixed solution; putting the obtained mixed solution into a drying box, drying, grinding into powder, and performing high-temperature treatment under the protective atmosphere to obtain an iron carbide nanoparticle modified three-dimensional porous nitrogen doped graphene composite material; performing oxidation, vulcanization, fluorination or chlorination treatment on the obtained iron carbide nanoparticle modified three-dimensional porous nitrogen doped graphene composite material at different temperature to obtain aferric oxide, sulfide, fluoride or chloride modified three-dimensional graphene composite material. The method provided by the invention is simple in process, low in cost, short in production cycle and capable of realizing large-scale preparation; the obtained three-dimensional graphene has high load area and has wide application prospect in the fields of energy storage, catalysis and the like.

Description

technical field [0001] The invention belongs to the field of functional nanometer materials, and in particular relates to a method for preparing a three-dimensional graphene composite material modified by iron-based oxysulfuride or chloride. Background technique [0002] Graphene, as a two-dimensional honeycomb lattice structure carbon material closely packed by single atoms, has many special physical and chemical properties, making it show good application prospects in various fields. The traditional synthesis methods of graphene materials include mechanical exfoliation method, redox method, chemical vapor deposition method, electrolysis method, etc., but the output of graphene materials prepared by these methods is small and the cost is high, which limits the large-scale production of graphene-based materials. application. At present, the preparation and application of nano-graphene composites have become the focus and hotspot of research in the material field. Graphene ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/06C01B32/184C01G49/12C01G49/10
CPCC01G49/06C01G49/10C01G49/12C01P2002/72C01P2004/03C01P2004/04
Inventor 李平刘志伟韩坤谭奇伟刘颖秦明礼曲选辉
Owner UNIV OF SCI & TECH BEIJING
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