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Method for preparing flower-shaped molybdenum disulfide micro-balloon

A technology of molybdenum disulfide and microspheres, applied in the direction of molybdenum sulfide, etc., can solve the problems of complex process and high cost, and achieve the effect of high product purity and low cost

Inactive Publication Date: 2008-01-30
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Preparation of flower-like MoS by high-temperature thermal reaction method 2 There are few literature reports on microspheres, and the cost is high and the process is complicated; while the low-temperature method has low cost, the prepared MoS 2 Most of them are one-dimensional structures or fullerene-like nanoparticles, and flower-like MoS has not yet been prepared at low temperature. 2 microsphere report

Method used

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  • Method for preparing flower-shaped molybdenum disulfide micro-balloon
  • Method for preparing flower-shaped molybdenum disulfide micro-balloon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 0.2g Na 2 MoO 4 , 0.2g CS(NH 2 ) 2 Put 0.1g of tungstic acid in a 50ml reactor, after ultrasonication for 30min, seal the reactor and put it in an oven at 180°C, keep it warm for 16h, cool to room temperature, and centrifuge and wash the product with deionized water until the pH value is Neutral, black powder product after oven drying at 60°C. Directly observed under the field emission scanning electron microscope as shown in Figure 1 (a, b), it can be found that a large number of flower-like microspheres are formed, with a purity of 95%. These microspheres are composed of lamellar thin layers with a thickness of about 8-30 nm, and the diameter of the microspheres is 500-700 nm. The EDX analysis of Figure 2 shows that only Mo and S exist in the sphere, and the atomic ratio of Mo and S is 1:1.96, which is different from that of MoS 2 The atomic ratio is close. The XRD diffraction in Figure 3 further confirmed that the product is MoS2 microspheres, and the phase com...

Embodiment 2

[0018] 0.2g Na 2 MoO 4 , 0.2g CS(NH 2 ) 2 Put 0.1g of titanium oxide in a 50ml reactor, after ultrasonication for 30min, seal the reactor and place it in an oven with a temperature of 150°C. Neutral, black powder product after oven drying at 60°C. The morphology and structure of the product after drying are the same as in Example 1.

Embodiment 3

[0020] 0.2g Na 2 MoO 4 , 0.4g CS(NH 2 ) 2 Put 0.04g of titanic acid in a 50ml reactor, after ultrasonication for 30min, seal the reactor and put it in an oven with a temperature of 200°C, keep it warm for 24h; cool to room temperature, and centrifuge the product with deionized water until the pH value is Neutral, black powder product after oven drying at 60°C. The morphology and structure of the product after drying are the same as in Example 1.

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Abstract

The invention discloses a method which adopts hydrothermal compound method for preparing flower-shaped microsphere of molybdenum disulfide. The invention comprises the steps: Na2MoO4, CS (NH2)2 and inorganic additives are added to a reactor and deionized water of 60 percent of the reactor column is also added and then the reactor is sealed and kept in a constant temperature case with a temperature ranging from 150 DEG C to 250 DEG C at least for 12 hours to be cooled in ambient temperature; obtained objects are washed by deionized water eccentrically to a neutral pH value; the flower-shaped microsphere of molybdenum disulfide is obtained after the objects are dried. The method of the invention has simple technique, easy operation, low cost and the products prepared has high purity and is promising for large-scaled production.

Description

technical field [0001] The present invention relates to inorganic material molybdenum disulfide (MoS 2 ), especially the preparation method of flower-shaped molybdenum disulfide microspheres. Background technique [0002] Molybdenum disulfide (MoS) nanoparticles 2 ) has broad application prospects in electron probes, solid lubrication, heterogeneous catalysis, gas storage materials, and photovoltaic materials due to its high specific surface area and good optical, electrical, lubricating, and catalytic properties. Nano-MoS 2 Including nanoparticles, nanosheets, fullerene-like nanoparticles, and nanotubes. Under certain preparation conditions, MoS 2 Nano-thin layers can spontaneously form special microstructures in the form of cuboids or spheres, which are called MoS 2 nanospheres. MoS 2 Nanospheres have higher specific surface area, more channels, and better performance in their application fields. So far used to prepare nano-MoS 2 The methods mainly include high-te...

Claims

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Application Information

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IPC IPC(8): C01G39/06
Inventor 黄宛真徐铸德赵荣祥
Owner ZHEJIANG UNIV
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