Method for preparing nano molybdenum disulfide with fullerene structure

A technology of nano-molybdenum disulfide and fullerene structure, applied in the direction of molybdenum sulfide, etc., can solve the problems of complex process, high cost, unfavorable industrial production, etc., and achieve the effect of high reaction efficiency, low cost and easy control

Inactive Publication Date: 2008-08-06
CHANGAN UNIV
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Problems solved by technology

This method uses chemical raw materials, the process is complicated and the cost is high
[0009] The above are the latest patents related to the synthesis of molybdenum disulfide nanomaterials. It can be seen from this that there is still a certain distance to realize the industrialization of large-scale fullerene structure molybdenum disulfide synthesis. The most prominent problem in all the above patents is cost. Too high, not conducive to defects such as industrial production

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  • Method for preparing nano molybdenum disulfide with fullerene structure

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preparation example Construction

[0025] Fig. 1 shows the schematic diagram of the preparation device structure of nano-molybdenum dioxide, which is composed of two independently heated tube furnaces, wherein 1# furnace is the gasifier of molybdenum trioxide, and 2# furnace is the reduction of molybdenum dioxide Reactor.

[0026] After the two quartz glass tubes pass through the 1# furnace, they meet in the 2# furnace. The 1# furnace provides molybdenum trioxide gas, and the gasification amount of molybdenum trioxide is controlled by controlling the carrier gas flow and the gasification temperature of the 1# furnace. , by controlling the temperature of the 2# furnace to control the reduction reaction temperature conditions of molybdenum dioxide, the generated molybdenum dioxide is deposited on the ceramic filter in the quartz tube in the 2# furnace, after the reduction reaction is completed, the 2# furnace cools down to room temperature Take it out to obtain nanometer molybdenum dioxide product.

[0027] The ...

Embodiment 1

[0030] A kind of preparation method of nanomolybdenum disulfide with fullerene structure, its preparation process is to adopt two-step method, carry out according to the following steps successively:

[0031] 1) First, industrial molybdenum trioxide is used as raw material, argon is used as carrier gas, hydrogen is used as reducing agent, and nanometer molybdenum dioxide particles are generated through gas phase reaction;

[0032] 2) Reaction of nano-molybdenum disulfide and elemental sulfur under high-temperature self-pressurized conditions to generate nano-molybdenum disulfide powder materials with a fullerene structure;

[0033] 3) The molybdenum dioxide is a nanoparticle directly formed by the reaction of molybdenum trioxide at 700-1000°C with hydrogen at 400-950°C. Secondly, the molybdenum disulfide of the fullerene structure is a nanometer Molybdenum oxide and elemental sulfur are synthesized by self-pressurized reaction at a temperature of 500-950°C in a container;

[...

Embodiment 2

[0037] A kind of preparation method of described nano-molybdenum disulfide with fullerene structure is carried out according to the following steps successively:

[0038] 1) First, industrial molybdenum trioxide is used as raw material, argon is used as carrier gas, hydrogen is used as reducing agent, and nanometer molybdenum dioxide particles are generated through gas phase reaction;

[0039] 2) Reaction of nano-molybdenum disulfide and elemental sulfur under high-temperature self-pressurized conditions to generate nano-molybdenum disulfide powder materials with a fullerene structure;

[0040] 3) The molybdenum dioxide is a nanoparticle directly formed by the reaction of molybdenum trioxide at 720-980°C with hydrogen at 420-930°C. Secondly, molybdenum disulfide with a fullerene structure is a nanometer Molybdenum oxide and elemental sulfur are synthesized by self-pressurized reaction at a temperature of 550-930°C in a container;

[0041] 4), the synthetic reaction of described...

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Abstract

The invention discloses a method for preparing nano molybdenum disulphide with a fullerene structure. The method comprises the following steps sequentially: by using industrial molybdenum trioxide as raw material, argon as carrier gas and hydrogen as reducing agent, molybdenum dioxide nano particle is generated by gas-phase reaction; the nano molybdenum disulphide and elemental sulfur are reacted under the condition of high temperature self-pressurization to produce powder material of the nano molybdenum disulphide with the fullerene structure; the molybdenum dioxide is nano particle generated directly by the reaction of the molybdenum trioxide after gasification under 700 to 1,000 DEG C with the hydrogen under 400 to 950 DEG C; the molybdenum disulphide with the fullerene structure is compound molybdenum disulphide by the self-pressurization reaction of the nano molybdenum dioxide and elemental sulfur in a vessel under 500 to 950 DEG C. The method for preparing the nano molybdenum disulphide with the fullerene structure has the advantages of simple process, high production efficiency, low cost of the raw material and product and short reaction time and the method can easily control the size of the molybdenum dioxide nano particle.

Description

technical field [0001] The invention relates to a preparation method of nano molybdenum disulfide with fullerene structure. Background technique [0002] As we all know, inspired by carbon nanotubes, the research team led by R. Tenne, a scientist at the Weizmann Institute of Science in Israel, opened up a new field of research on non-carbon inorganic fullerene-like nanomaterials, and adopted a fluidized bed process to transition at the corresponding nanoscale Metal oxides are used as precursors to realize the macroscopic synthesis of inorganic fullerene-like transition metal sulfide nanomaterials. [0003] In addition to the solid-gas reaction synthesis method in the prior art, there are many methods for synthesizing molybdenum disulfide nanomaterials, such as laser sputtering and arc discharge method, ultrasonic electrochemical synthesis method, hydrothermal synthesis method, template method, self-assembly method and many more. [0004] Among all the above methods, the so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G39/06
Inventor 赵鹏李东林
Owner CHANGAN UNIV
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