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a fe 3 o 4 Preparation method of quasi-cubic particle/multilayer graphene composite material

A technology of multi-layer graphene and composite materials, which is applied in the field of materials, can solve the problems of uniform composite materials and inaccessibility, and achieve the effect of simple preparation, low price, and strong metal ion loading capacity

Active Publication Date: 2020-08-28
嘉善县国创新能源研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Using the method of mixing the prepared nano-iron oxide and carbon materials, very uniform composite materials are often not obtained

Method used

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  • a fe <sub>3</sub> o <sub>4</sub> Preparation method of quasi-cubic particle/multilayer graphene composite material
  • a fe <sub>3</sub> o <sub>4</sub> Preparation method of quasi-cubic particle/multilayer graphene composite material
  • a fe <sub>3</sub> o <sub>4</sub> Preparation method of quasi-cubic particle/multilayer graphene composite material

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preparation example Construction

[0027] see Figure 4 , shown as a Fe of the present invention 3 o 4 The flow chart of the preparation method of quasi-cubic particle / multilayer graphene composite material comprises the following steps:

[0028] S10: Measure DMF and distilled water with a volume ratio of 8:2, mix them as a mixed solvent, and the sum of their volumes is used for calculation as the volume of the mixed solution;

[0029] S20: add expanded graphite, and ultrasonically vibrate for 3 hours to obtain a mixed solution of multilayer graphene;

[0030] S30: Add urea and anhydrous sodium acetate into the multilayer graphene mixed solution, and stir magnetically for 5-10 minutes. The added amount of urea is 2-5 mg / mL, and the added amount of anhydrous sodium acetate is 10 mg / mL.

[0031] S40: Add iron powder and dilute nitric acid to the above solution. The amount of iron powder to be added is 3-5 mg / mL, dilute nitric acid is formulated to 2 mol / L before adding, and the added volume is 1 / 10-1 / 5 of th...

example 1

[0036] Mix 8 mL of DMF and 2 mL of distilled water as a mixed solvent, add 15 mg of expanded graphite, and obtain the required multilayer graphene solution after ultrasonic oscillation for 3 hours, add 100 mg of anhydrous sodium acetate and 20 mg of urea to the mixed solution, stir magnetically for 10 minutes, and then Add 40mg of iron powder and 2mL of dilute nitric acid to make 2mol / L. Then it was stirred for 8 hours in a water bath at 80° C. at a speed of 320 / min. The reactants were taken out and centrifuged three times with alcohol and distilled water respectively, and finally dried at 60°C in a drying oven for 24 hours to obtain Fe 3 o 4 Quasi-cubic particle / multilayer graphene composites.

[0037] figure 1 Be the x-ray diffraction diffractometer (XRD) collection of illustrative plates of the sample that this method obtains, can see the diffraction peak of multilayer graphene and Fe from the figure 3 o 4 diffraction peaks.

[0038] figure 2 and image 3 is a scan...

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Abstract

The invention discloses a preparation method of a Fe3O4 pseudo-cubic particle / multilayered graphene composite material. The preparation method comprises the following steps: measuring DMF and distilled water in a volume ratio of 8: 2 and mixing the two as a mixed solvent; adding expanded graphite, and ultrasonically treating the mixture for 3 hours to obtain a multilayered graphene mixed solution;adding urea and anhydrous sodium acetate into the mixed solution, and stirring the mixture for 5-10 minutes; then adding iron powder and diluted nitric acid, and stirring the solution in a water bathfor 5-10 hours at 70-90 DEG C to obtain ferroferric oxide particles; taking out a reactant and centrifugally cleaning the reactant for 3 times with alcohol and distilled water, and drying the reactant in an oven at 60 DEG C for 12 hours to obtain dried Fe3O4 pseudo-cubic particle / multilayered graphene composite material. The prepared ferroferric oxide particles are about 50-200 nm in size and arepseudo-cubic. The preparation method is simple in process, and the materials are wide in source and low in cost. The prepared composite material has good application value in the fields of novel sensor materials, lithium ion batteries, photocatalyst apparatuses, magnetic materials, pigments, medical and bioengineering fields and the like.

Description

technical field [0001] The invention belongs to the technical field of materials, in particular to a Fe 3 o 4 Preparation method of quasi-cubic particle / multilayer graphene composite. The prepared materials are valuable in energy storage applications, magnetic materials, medical and biological engineering, energy saving and environmental protection. Background technique [0002] Fe 3 o 4 It is an important industrial material and has important applications in the fields of catalysis, energy storage, magnetic recording, and magnetic targeting. Regardless of the application field, Fe 3 o 4 The particle morphology and size have a significant impact on performance. Among them, Fe with quasi-cubic morphology 3 o 4 than spherical Fe 3 o 4 Particles are more active and thus have higher catalytic and energy storage capabilities. Meanwhile, quasi-cubic Fe 3 o 4 It is also more difficult to synthesize. [0003] There are many preparation methods for ferric oxide particl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/08C01B32/19B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01B32/19C01G49/08C01P2002/72C01P2004/03C01P2004/62C01P2004/64
Inventor 胡晓萍盛威徐军明宋开新
Owner 嘉善县国创新能源研究院
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