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Preparation method of molybdenum disulfide nanosheet exfoliation based on solid-phase mechanochemical reactor

A technology of chemical reactor and molybdenum disulfide, applied in the direction of nanotechnology, molybdenum sulfide, nanotechnology, etc. for materials and surface science, can solve problems such as unstable product quality, low preparation efficiency, and difficulty in large-scale production , to achieve the effect of simple preparation operation and preparation conditions, high purity and stable product quality

Active Publication Date: 2021-08-03
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation efficiency of this method is also low, and it is difficult to produce on a large scale.
[0007] In summary, the current mainstream preparation of MoS 2 The method of nanosheets has more or less harsh preparation conditions, unstable product quality, difficulty in large-scale production, etc., and it is difficult to meet the needs of production and scientific research

Method used

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  • Preparation method of molybdenum disulfide nanosheet exfoliation based on solid-phase mechanochemical reactor
  • Preparation method of molybdenum disulfide nanosheet exfoliation based on solid-phase mechanochemical reactor
  • Preparation method of molybdenum disulfide nanosheet exfoliation based on solid-phase mechanochemical reactor

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Embodiment 1

[0046] The molybdenum disulfide nanosheet peeling preparation method of the present embodiment comprises the following steps:

[0047] (1) According to parts by weight, prepare materials according to the following raw materials:

[0048] 40 parts of polyoxymethylene,

[0049] Molybdenum disulfide 50 parts,

[0050] 10 parts of polyethylene oxide;

[0051] (2) Add the raw materials prepared in step (1) into a disc-shaped solid-phase force chemical reactor and grind them at room temperature. Cooling circulating water at room temperature is introduced during the grinding process to control the temperature of the disc surface to 20°C. , the pressure is 10kN, the speed is 50 rpm, and a total of 40 grinding times;

[0052] (3) Add the polyoxymethylene / polyoxyethylene / molybdenum disulfide composite powder after grinding in step (2) into an 85% concentration of hexafluoroisopropanol (HFIP) solution, keep stirring for 12 hours, filter and remove the resulting The solid was rinsed r...

Embodiment 2

[0055] The molybdenum disulfide nanosheet peeling preparation method of the present embodiment comprises the following steps:

[0056] (1) According to parts by weight, prepare materials according to the following raw materials:

[0057] 88 parts of polyoxymethylene,

[0058] Molybdenum disulfide 2 parts,

[0059] 5 parts of polyethylene oxide;

[0060] (2) Add the raw materials prepared in step (1) into a disc-shaped solid-phase force chemical reactor and grind them at room temperature. During the grinding process, cooling circulating water at room temperature is introduced to control the temperature of the disc surface at 15°C. , the pressure is 8KN, the speed is 20 rpm, and a total of 10 times of grinding;

[0061] (3) Add the polyoxymethylene / polyoxyethylene / molybdenum disulfide composite powder after grinding in step (2) into an 85% concentration of hexafluoroisopropanol (HFIP) solution, keep stirring for 12 hours, filter and remove the resulting The solid was rinsed ...

Embodiment 3

[0064] The molybdenum disulfide nanosheet peeling preparation method of the present embodiment comprises the following steps:

[0065] (1) According to parts by weight, prepare materials according to the following raw materials:

[0066] 80 parts of polyoxymethylene,

[0067] Molybdenum disulfide 10 parts,

[0068] 40 parts of polyethylene oxide;

[0069] (2) Add the raw materials prepared in step (1) into a disc-shaped solid-phase force chemical reactor and grind them at room temperature. Cooling circulating water at room temperature is introduced during the grinding process to control the temperature of the disc surface to 40°C. , the pressure is 15kN, the speed is 100 rpm, and a total of 50 grinding times;

[0070] (3) Add the polyoxymethylene / polyoxyethylene / molybdenum disulfide composite powder after grinding in step (2) into an 85% concentration of hexafluoroisopropanol (HFIP) solution, keep stirring for 12 hours, filter and remove the resulting The solid was rinsed ...

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Abstract

The present invention provides a method for preparing molybdenum disulfide nano-sheet exfoliation based on a solid-phase mechanochemical reactor, which mainly includes the following steps: (1) prepare materials according to the following raw materials: 40 to 88 parts of polyoxymethylene, 2 to 2 parts of molybdenum disulfide 50 parts, 5-40 parts of polyethylene oxide; (2) adding the raw materials prepared in step (1) into a disc-shaped solid-phase force chemical reactor for grinding and pulverizing; (3) grinding the polyethylene oxide after step (2) Formaldehyde / polyethylene oxide / molybdenum disulfide composite powder is purified to obtain molybdenum disulfide nanosheets. The preparation process is simple, efficient, scalable, and the product quality is stable. The number of prepared molybdenum disulfide nanosheets is mainly 5-11 layers, and the length is mainly distributed between 100-110nm.

Description

technical field [0001] The invention belongs to the technical field of preparation of molybdenum disulfide nano-sheets, and specifically relates to a method for preparing molybdenum disulfide nano-sheets based on a solid-phase mechanochemical reactor, especially for disulfide using the mechanochemical reactor disclosed in patent ZL 95111258.9 Exfoliation Preparation of Molybdenum Nanosheets. Background technique [0002] In recent years, two-dimensional layered materials such as graphene (Gr), boron nitride (NB), and transition metal dichalcogenides (LTMDs) with excellent photoelectric properties have attracted extensive attention in the scientific research community. Among them, molybdenum disulfide (MoS 2 ) is a graphite-like layered two-dimensional material with good optical, electrical, lubricating, and catalytic properties. It is one of the research focuses in popular fields such as semiconductor materials, physical chemistry, and electronics. Compared with the tradit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G39/06B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G39/06C01P2004/04C01P2004/64
Inventor 陈英红何雪薇华正坤王琪
Owner SICHUAN UNIV