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Molybdenum sulfide/polypyrrole/polyaniline ternary composite material as well as preparation method and application thereof

A composite material, molybdenum sulfide technology, applied in the field of molybdenum sulfide/polypyrrole/polyaniline ternary composite material and its preparation, can solve the problem of not very excellent electrical conductivity, achieve excellent electrical conduction path, good energy storage properties, inhibit the effect of reunion

Inactive Publication Date: 2016-08-24
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, molybdenum sulfide itself is a semiconductor, and its conductivity is not very good, so it is of great significance to combine molybdenum sulfide with other high-conductivity materials

Method used

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  • Molybdenum sulfide/polypyrrole/polyaniline ternary composite material as well as preparation method and application thereof
  • Molybdenum sulfide/polypyrrole/polyaniline ternary composite material as well as preparation method and application thereof
  • Molybdenum sulfide/polypyrrole/polyaniline ternary composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Add 10g of molybdenum sulfide ore to 1000g of N,N-dimethylformamide, and use an experimental ultrasonic cleaner for continuous ultrasonication for 6 hours to obtain a uniform dispersion, which is molybdenum sulfide nanosheets;

[0035] (2) Take 50 mL of the above-mentioned dispersion liquid, filter with suction to obtain solid molybdenum sulfide nanosheets, and wash with 20 mL of ethanol and 20 mL of deionized water alternately for three times.

[0036] (3) Vacuum drying (60°C, 8h) to obtain molybdenum sulfide nanosheet solids;

[0037] (4) Disperse the above-mentioned molybdenum sulfide nanosheet solid in 40mL ethanol, and obtain a stable dispersion of molybdenum sulfide nanosheet by ultrasonic;

[0038] (5) 200 μL pyrrole is dissolved in the sulfuric acid of 30mL 1mol / L, joins in (4) in the molybdenum sulfide nanosheet dispersion;

[0039] (6) Place the prepared mixed solution containing molybdenum sulfide nanosheets and pyrrole monomer in an ice-water bath (0-5°...

Embodiment 2

[0057] (1) Add 10g of molybdenum sulfide ore to 1000g of N,N-dimethylformamide, and use an experimental ultrasonic cleaner for continuous ultrasonication for 6 hours to obtain a uniform dispersion, which is molybdenum sulfide nanosheets;

[0058] (2) Take 50 mL of the above-mentioned dispersion liquid, filter with suction to obtain solid molybdenum sulfide nanosheets, and wash with 20 mL of ethanol and 20 mL of deionized water alternately for three times.

[0059] (3) Vacuum drying (60°C, 8h) to obtain molybdenum sulfide nanosheet solids;

[0060] (4) Disperse the above-mentioned molybdenum sulfide nanosheet solid in 40mL ethanol, and obtain a stable dispersion of molybdenum sulfide nanosheet by ultrasonic;

[0061] (5) 300 μL pyrrole is dissolved in the sulfuric acid of 30mL 1mol / L, joins in (4) in the molybdenum sulfide nanosheet dispersion;

[0062] (6) Place the prepared mixed solution containing molybdenum sulfide nanosheets and pyrrole monomer in an ice-water bath (0-5°...

Embodiment 3

[0069] (1) Add 10g of molybdenum sulfide ore to 1000g of N,N-dimethylformamide, and use an experimental ultrasonic cleaner for continuous ultrasonication for 6 hours to obtain a uniform dispersion, which is molybdenum sulfide nanosheets;

[0070] (2) Take 50 mL of the above-mentioned dispersion liquid, filter with suction to obtain solid molybdenum sulfide nanosheets, and wash with 20 mL of ethanol and 20 mL of deionized water alternately for three times.

[0071] (3) Vacuum drying (60°C, 8h) to obtain molybdenum sulfide nanosheet solids;

[0072] (4) Disperse the above-mentioned molybdenum sulfide nanosheet solid in 40mL ethanol, and obtain a stable dispersion of molybdenum sulfide nanosheet by ultrasonic;

[0073] (5) 200 μL pyrrole is dissolved in the sulfuric acid of 30mL 1mol / L, joins in (4) in the molybdenum sulfide nanosheet dispersion;

[0074] (6) Place the prepared mixed solution containing molybdenum sulfide nanosheets and pyrrole monomer in an ice-water bath (0-5°...

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Abstract

The invention relates to a molybdenum sulfide / polypyrrole / polyaniline ternary composite material as well as a preparation method and application thereof. According to the molybdenum sulfide / polypyrrole / polyaniline ternary composite material, a polypyrrole nano coating layer and polyaniline nanoparticles are grown on molybdenum sulfide nanosheets in situ. The preparation method comprises the following steps: performing ultrasonic peeling on a solution so as to obtain molybdenum sulfide nanosheets, performing ultrasonic dispersion so as to obtain a molybdenum sulfide nanosheet dispersion liquid, adding an acid solution dispersion liquid of a pyrrole monomer, performing in-situ polymerization in an ice water bath, washing, drying so as to obtain a molybdenum sulfide / polypyrrole composite material, performing ultrasonic dispersion so as to obtain a molybdenum sulfide / polypyrrole dispersion liquid, adding an acid solution dispersion liquid of aniline, performing in-situ polymerization in the ice water bath, washing, and drying, thereby obtaining the molybdenum sulfide / polypyrrole / polyaniline ternary composite material. The molybdenum sulfide / polypyrrole / polyaniline ternary composite material is simple in preparation process, easy to operate and low in reaction temperature, and can be used as an ideal electrode material of a new energy device such as a high-performance super-capacitor and a lithium ion battery.

Description

technical field [0001] The invention belongs to the field of transition metal chalcogenide-conductive polymer materials and preparation thereof, in particular to a molybdenum sulfide / polypyrrole / polyaniline ternary composite material and its preparation method and application. Background technique [0002] Both polypyrrole and polyaniline belong to the category of conductive polymer materials. Among them, polypyrrole is obtained by direct oxidation polymerization of pyrrole monomer, and the polymerization process of pyrrole belongs to the oxidation coupling mechanism. Polypyrrole is a conjugated large π bond system composed of alternating single and double bonds. Ideally, electrons are delocalized on the entire main chain, and the molecular orbitals of the monomers interact. The highest occupied orbital forms the valence band, and the lowest empty orbital forms Conduction band, there is an energy gap between them, that is, forbidden band. The band gap (Eg) determines its co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/02C08L79/04C08K3/30C08G73/02C08G73/06
CPCC08G73/0266C08G73/0611C08K2201/011C08L79/02C08L2205/02C08L79/04C08K2003/3009
Inventor 刘天西张超王开李乐刘颖杨静黄钊琪
Owner DONGHUA UNIV
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