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A kind of molybdenum sulfide/ferric oxide composite material and its preparation method and application

A technology of ferric oxide and composite materials, applied in the directions of molybdenum sulfide, iron oxide, iron oxide/iron hydroxide, etc., can solve problems such as the reduction of surface active sites, improve the rate performance, and the synthesis method is convenient and economical. The effect of high specific surface area

Inactive Publication Date: 2019-02-01
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the synthesis of iron oxide crystals is plagued by polymeric additives, which stabilize the primary nanoparticles for a short time, but lead to serious problems, such as different additives sensitive to the synthesis method, surface active sites after post-treatment (high temperature calcination) points will be significantly lower

Method used

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  • A kind of molybdenum sulfide/ferric oxide composite material and its preparation method and application
  • A kind of molybdenum sulfide/ferric oxide composite material and its preparation method and application
  • A kind of molybdenum sulfide/ferric oxide composite material and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0035] (1) Add 2g of molybdenum sulfide ore (molybdenite) to 500g of dimethylformamide, use the experimental cell pulverizer to continuously sonicate for 10 hours (the ultrasonic program is 8s at work, 2s at intervals), and take the supernatant Centrifuge to obtain a uniform dispersion, which is a dispersion of molybdenum sulfide nanosheets, with a concentration of 0.2 mg / ml;

[0036] (2) Take the above-mentioned dispersion liquid, suction filter, obtain molybdenum sulfide nanosheet solid, wash with 30mL ethanol and 30mL deionized water alternately three times and then dry and store;

[0037] (3) Disperse 60 mg of the above-mentioned molybdenum sulfide nanosheets in 100 mL of deionized water, and ultrasonically obtain a stable dispersion of molybdenum sulfide nanosheets; wherein, the concentration of the dispersion is 0.6 mg / ml;

[0038] (4) Get 337.5mg ferric chloride hexahydrate and join in above-mentioned dispersion liquid, mechanical stirring makes it disperse evenly;

[...

Embodiment 2

[0055] (1) Add 1g of molybdenum sulfide ore (molybdenite) to 200g of dimethylol ethyl urea, use an experimental ultrasonic cleaner for continuous ultrasonication for 20 hours, take the supernatant and centrifuge to obtain a uniform dispersion, which is vulcanization Molybdenum nanosheet dispersion, the concentration of the dispersion is 0.5mg / ml;

[0056] (2) Take 100 mL of the above-mentioned dispersion liquid, filter with suction to obtain solid molybdenum sulfide nanosheets, alternately wash with 30 mL of ethanol and 30 mL of deionized water three times, and then wash with 150 mL of deionized water.

[0057] (3) Disperse 80 mg of the above-mentioned molybdenum sulfide nanosheets in 100 mL of deionized water, and obtain a stable dispersion of molybdenum sulfide nanosheets by ultrasonication;

[0058] (4) Get 302.9mg ferric nitrate nonahydrate and join in the above-mentioned dispersion liquid, stir mechanically to make it disperse evenly;

[0059] (5) Put the above three dis...

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Abstract

The invention relates to a molybdenum sulfide / ferric oxide composite material and a preparation method and an application thereof. The composite material is characterized in that ferric oxide nanorods are grown on a molybdenum sulfide nanosheet. The preparation method comprises the following steps: stripping molybdenum sulfide ore through a liquid phase method to obtain the molybdenum sulfide nanosheet; transferring the molybdenum sulfide nanosheet into water through a solvent transfer method and carrying out ultrasonic dispersion to obtain a molybdenum sulfide nanosheet water-phase dispersion liquid; and growing a ferric oxide precursor nanostructure on the molybdenum sulfide nanosheet through a chemical bath deposition method, and then, carrying out high-temperature heat treatment to obtain the molybdenum sulfide / ferric oxide composite material. The composite material has good uniformity and consistency; electrochemical activity and conductivity of the material are good; when the composite material serves as an electrode material for a super capacitor, good charge-discharge rate and cycling stability are realized; and the composite material is convenient and environmentally friendly in the preparation process, low in reaction temperature, high in safety coefficient, and easy for industrial production.

Description

technical field [0001] The invention belongs to the field of transition metal chalcogenide-transition metal oxide materials and preparation thereof, in particular to a molybdenum sulfide / ferric oxide composite material and a preparation method and application thereof. Background technique [0002] As a member of metal oxides, iron oxide nanomaterials are very important inorganic nanomaterials. Due to its stable chemical properties, simple and easy synthesis, low cost, environmental friendliness, good corrosion resistance, magnetic properties and other characteristics, it is widely used in magnetic coatings, fine ceramics, plastic products, electronic materials , ink, microelectronics, sensors, catalysts, wastewater treatment and other industrial and biomedical aspects, and it is expected to develop new applications in the future, so the properties and morphology of iron oxide nanomaterials have become an important content of scientific research. High specific surface area a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/24H01G11/30H01G11/46H01G11/86H01M4/36H01M4/52H01M4/58C01G39/06C01G49/06
CPCC01G39/06C01G49/06C01P2002/72C01P2004/03H01G11/24H01G11/30H01G11/46H01G11/86H01M4/366H01M4/52H01M4/5815Y02E60/10Y02E60/13
Inventor 刘天西王开张超张凌隽杨静苏月周俊
Owner DONGHUA UNIV
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