Method for efficiently preparing high-quality molybdenum disulfide nano-wires

A molybdenum disulfide and nanowire technology, applied in the field of nanomaterials, can solve the problems of multiple impurities and poor quality of molybdenum disulfide nanowires, and achieve the effect of expanding the selection range and simple method.

Inactive Publication Date: 2019-03-08
王子韩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, according to the search by the inventor, it is found that the research on molybdenum disulfide basically focuses on the preparation of molybdenum disulfide nanosheets, and there are few reports involving other nanostructures.
It is only found that the Chinese patent CN104071846A discloses a method for preparing molybdenum disulfide nanowires,

Method used

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  • Method for efficiently preparing high-quality molybdenum disulfide nano-wires
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  • Method for efficiently preparing high-quality molybdenum disulfide nano-wires

Examples

Experimental program
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Example Embodiment

[0028] Example 1

[0029] Add the ethylenediamine solution with a concentration of 0.03mg / mL to 50mL of cetyltrimethylammonium bromide aqueous solution, and magnetically stir to obtain solution A; then weigh with a molar ratio of 0.01:0.1 Ammonium molybdate and thioacetamide are stirred and dispersed in deionized water to obtain solution B; after solutions A and B are evenly mixed, use a pipette to slowly drop 0.5 mL of hydrazine hydrate into the mixed solution, and continue stirring (this Be sure to open the fume hood at the place), then raise the temperature of the oil bath to 100°C and react for 12 hours. At the same time, adjust the speed of the shuttle magnet to 50rpm. After the reaction, the reaction solution was cooled to room temperature, and the product was centrifuged and washed.

Example Embodiment

[0030] Example 2

[0031] Add the ethylenediamine solution with a concentration of 0.03mg / mL to 50mL cetyltrimethylammonium bromide aqueous solution, and magnetically stir to obtain solution A; then weigh it at a molar ratio of 0.05:0.2 Ammonium molybdate and thioacetamide are stirred and dispersed in deionized water to obtain solution B; after solutions A and B are evenly mixed, use a pipette to slowly drop 0.5 mL of hydrazine hydrate into the mixed solution, and continue stirring (this Be sure to open the fume hood at the place), then raise the temperature of the oil bath to 100°C and react for 20 hours. At the same time, adjust the speed of the shuttle magnet to 50rpm. After the reaction, the reaction solution was cooled to room temperature, and the product was centrifuged and washed.

Example Embodiment

[0032] Example 3

[0033] Add the ethylenediamine solution with a concentration of 0.03mg / mL to 50mL of octadecyltrimethylammonium bromide aqueous solution, and magnetically stir to obtain solution A; then weigh it at a molar ratio of 0.01:0.1 Ammonium molybdate and thioacetamide are stirred and dispersed in deionized water to obtain solution B; after solutions A and B are evenly mixed, use a pipette to slowly drop 0.5 mL of hydrazine hydrate into the mixed solution, and continue stirring (this Be sure to open the fume hood at the place), then raise the temperature of the oil bath to 100°C and react for 12 hours. At the same time, adjust the speed of the shuttle magnet to 50rpm. After the reaction, the reaction solution was cooled to room temperature, and the product was centrifuged and washed.

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Abstract

The invention provides a method for efficiently preparing high-quality molybdenum disulfide nano-wires. The method comprises the following steps: firstly, preparing a proper amount of a surfactant solution; then adding a proper amount of a structure-directing agent into the solution and stirring and mixing to obtain a solution A; secondly, weighing a proper amount of ammonium molybdate and thioacetamide as a molybdenum source and a sulfur source respectively, and uniformly stirring in a de-ionized water solution to obtain a solution B; thirdly, slowly dropwise adding the solution A into the solution B; then adding a proper amount of a reducing agent hydrazine hydrate; finally, after the hydrazine hydrate is completely added, adjusting the temperature of an oil bath pot to be 100 to 120 DEGC, wherein the reaction time is 10 to 24h and the stirring speed of a shuttle-shaped magneton is 20 to 60rpm; after reaction is finished, centrifuging a reaction product for a plurality of times andwashing with de-ionized water.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a method for efficiently preparing high-quality molybdenum disulfide nanowires. Background technique [0002] Molybdenum disulfide is a two-dimensional transition metal sulfide, which has a graphene-like layered structure and has attracted much attention. Due to its unique electrical, acoustic, optical and mechanical properties, it has been widely studied in the application fields of lithium-ion battery anode materials, photocatalytic materials, energy storage materials and electrochemical sensors. [0003] In its crystal structure, similar to graphene, the interlayer atoms are combined in the form of covalent bonds, and the layers are combined by Van der Waals force. The interplanar spacing of the (002) crystal plane is 0.61nm, which is The size is significantly larger than lithium ions, and its theoretical capacity is as high as 1290mAh / g, much higher than graphene...

Claims

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Application Information

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IPC IPC(8): C01G39/06B82Y40/00
CPCC01G39/06B82Y40/00C01P2004/16C01P2004/61C01P2004/62C01P2004/64
Inventor 王子韩胡杨张红
Owner 王子韩
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