Molybdenum sulfide/ferric oxide composite material and preparation method and application thereof

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: 2017-05-31
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 problem

Method used

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  • Molybdenum sulfide/ferric oxide composite material and preparation method and application thereof
  • Molybdenum sulfide/ferric oxide composite material and preparation method and application thereof
  • Molybdenum sulfide/ferric oxide composite material and preparation method and application thereof

Examples

Experimental program
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Example Embodiment

[0034] Example 1

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

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

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

[0038] (4) Take 337.5 mg of ferric chloride hexahydrate and add it to the above dispersion, stir it mechanically to mak...

Example Embodiment

[0054] Example 2

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

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

[0057] (3) Disperse 80 mg of the aforementioned molybdenum sulfide nanosheets in 100 mL of deionized water, and ultrasonically obtain a stable dispersion of molybdenum sulfide nanosheets;

[0058] (4) Take 302.9 mg of ferric nitrate nonahydrate and add it to the above dispersion, stir it mechanically to make it evenly dispersed;

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

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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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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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