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Preparing method of single-layer or few-layer molybdenum disulfide nanometer material

A technology of molybdenum disulfide and nanomaterials, which is applied in the field of metal molybdenum, can solve the problems of low output of molybdenum disulfide nanomaterials, low stripping efficiency, and weak electrical properties of products, and achieve high stripping efficiency, large output, and simple operation. Effect

Active Publication Date: 2016-06-15
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Based on the problems existing in the prior art, the present invention proposes a method for preparing single-layer or few-layer molybdenum disulfide nanomaterials, which solves the problem of low yield and peeling of single-layer or few-layer molybdenum disulfide nanomaterials prepared in the prior art. Technical problems of low efficiency and poor electrical properties of the product

Method used

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  • Preparing method of single-layer or few-layer molybdenum disulfide nanometer material
  • Preparing method of single-layer or few-layer molybdenum disulfide nanometer material
  • Preparing method of single-layer or few-layer molybdenum disulfide nanometer material

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Embodiment 1

[0044] This embodiment provides a method for preparing a single-layer or few-layer molybdenum disulfide nanomaterial, which specifically includes the following steps:

[0045] Take 10g of molybdenum disulfide powder and grind it to a 200-mesh sieve, add it to an ethanol solution with a mass concentration of 10% and containing 100g of polyphenylene sulfide, heat it in a water bath to 30°C and stir for 12 hours to obtain a mixed solution.

[0046] Add 5gKMnO to the above mixture 4 powder, heated to 50°C in a water bath and stirred for 18 hours, filtered and dried the filter cake, ground to 200 mesh and sieved to obtain 3g layered molybdenum disulfide powder.

[0047] Put the obtained layered molybdenum disulfide powder and 1.5g of picric acid into the high-pressure reaction kettle evenly, vacuumize and pass in argon, heat the reaction kettle to 500°C to explode, and take out the explosion reaction after cooling to room temperature with the furnace. In this way, single-layer or ...

Embodiment 2

[0050] This embodiment provides a method for preparing a single-layer or few-layer molybdenum disulfide nanomaterial, which specifically includes the following steps:

[0051] Take 10g of molybdenum disulfide powder and grind it to a 200-mesh sieve, add it to an ethanol solution with a mass concentration of 20% and containing 200g of polyphenylene sulfide, heat it in a water bath to 50°C and stir for 5 hours to obtain a mixed solution.

[0052] Add 10g KMnO to the above mixture 4 powder, heated to 80°C in a water bath and stirred for 8 hours, filtered and dried the filter cake, ground to 200 mesh and sieved to obtain 3.2g layered molybdenum disulfide powder.

[0053] Put the obtained layered molybdenum disulfide powder and 3.2g of picric acid into the high-pressure reaction kettle evenly, evacuate and pass in argon, heat the reaction kettle to 480°C to explode, and take out the explosion reaction after cooling to room temperature with the furnace. In this way, single-layer or...

Embodiment 3

[0055] This embodiment provides a method for preparing a single-layer or few-layer molybdenum disulfide nanomaterial, which specifically includes the following steps:

[0056] Take 10g of molybdenum disulfide powder and grind it to a 200-mesh sieve, add it to an ethanol solution with a mass concentration of 30% and containing 300g of polyphenylene sulfide, heat it in a water bath to 40°C and stir for 8 hours to obtain a mixed solution.

[0057] Add 15gKMnO to the above mixture 4 powder, heated to 70°C in a water bath and stirred for 12 hours, filtered and dried the filter cake, ground to 200 mesh and sieved to obtain 2.8g layered molybdenum disulfide powder.

[0058] Put the obtained layered molybdenum disulfide powder and 5.6g of picric acid into the high-pressure reaction kettle evenly, evacuate and pass in argon, heat the reaction kettle to 450°C to explode, and take out the explosion reaction after cooling to room temperature with the furnace. In this way, single-layer or...

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Abstract

The invention provides a preparing method of a single-layer or few-layer molybdenum disulfide nanometer material. According to the method, molybdenum disulfide powder is added into a layering solution to be subjected to a layering reaction, so that mixed liquor is formed; then, an oxidizing agent is added into the mixed liquor to carry out the oxidation intercalation reaction, and a product is filtered and dried to obtain intercalation molybdenum disulfide powder; finally, an explosion agent is added to carry out the explosive reaction, after cooling is carried out to the room temperature, an explosive reaction product is taken out, so that the single-layer or few-layer molybdenum disulfide nanometer material is obtained. The single-layer or few-layer molybdenum disulfide nanometer material prepared through the method is high in stripping efficiency and large in yield; moreover, most stripped products are single-layer molybdenum disulfide with high carrier mobility, can be effectively applied to photoelectricity, a semi-conductor, a secondary battery, a sensor, a storage medium and other devices and has a wide application prospect. The method for preparing the single-layer or few-layer molybdenum disulfide nanometer material is easy to operate, a complex and tedious preparing method is not needed, and the method is suitable for industrialized production.

Description

technical field [0001] The invention belongs to the technical field of molybdenum metal and relates to molybdenum disulfide, in particular to a method for preparing a single-layer or few-layer molybdenum disulfide nanometer material. Background technique [0002] Graphene-like MoS2 composed of single or few layers of MoS 2 ) is a new type of two-dimensional (2D) layered compound with graphene-like structure and properties. In recent years, it has become an emerging research hotspot due to its unique physical and chemical properties. Single-layer or few-layer molybdenum disulfide is a two-dimensional crystal material with a "sandwich sandwich" layered structure composed of single-layer or multi-layer molybdenum disulfide in the hexagonal system. The single-layer molybdenum disulfide is composed of three atomic layers. The middle layer is a molybdenum atomic layer, and the upper and lower layers are sulfur atomic layers. The molybdenum atomic layer is sandwiched by two sulfur...

Claims

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Application Information

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IPC IPC(8): C01G39/06B82Y30/00
CPCB82Y30/00C01G39/06C01P2004/03C01P2004/04C01P2002/72C01P2002/82C01P2004/64
Inventor 胡平王快社杨帆胡卜亮宋瑞陈震宇李秦伟刘漫博
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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