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Method used for controllable preparation of monodisperse mesoporous molybdenum disulfide nanospheres

A technology of molybdenum disulfide and nanospheres, applied in the direction of molybdenum sulfide, nanotechnology, nanotechnology, etc., can solve the problems of not reaching the nanometer level, uneven size of nanospheres, and inability to control the size and surface pore size of nanospheres at the same time. Achieve the effect of low cost, stable mechanical strength and high chemical stability

Inactive Publication Date: 2016-02-24
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the product MoS in the prior art 2 The size and surface pore size of the nanospheres cannot be controlled at the same time, and the size of the nanospheres is not uniform or cannot reach the nanometer level

Method used

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  • Method used for controllable preparation of monodisperse mesoporous molybdenum disulfide nanospheres
  • Method used for controllable preparation of monodisperse mesoporous molybdenum disulfide nanospheres
  • Method used for controllable preparation of monodisperse mesoporous molybdenum disulfide nanospheres

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Experimental program
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Embodiment 1

[0034] Dissolve 0.1g of ammonium thiomolybdate solid (that is, 10 parts of Mo salt solution) in 10ml of water, add 12.5ml of benzene (that is, add 5 parts of organic solvent), and 10g of surfactant (that is, 10 parts of surfactant), and prepare The solution was mixed, heated and stirred, and refluxed, the temperature was controlled at 80° C., and the reaction time was 3 hours. Weigh SiO 2 Sol 10ml, the mass fraction is 5% (that is, 10 parts of SiO 2 Sol), pour into the mixed solution, and stir for 30min. Put the mixture into a stainless steel reaction kettle, 180 o C response 3days. The solid in the kettle was taken out, washed with 10% HF solution, and centrifuged to obtain mesoporous MoS 2 nanospheres.

Embodiment 2

[0036]Dissolve 0.5g of ammonium thiomolybdate solid (50 parts of Mo salt solution) in 10ml of water, add 162.5ml of benzene (that is, add 65 parts of organic solvent), 0.5g of surfactant (that is, add 0.5 parts of surfactant), Make a mixed solution, heat and stir, reflux, the temperature is controlled at 90°C, and the reaction time is 5h. Weigh SiO 2 Sol 5ml, the mass fraction is 5% (that is, 5 parts of SiO 2 Sol), pour into the mixed solution, and stir for 30min. Put the mixture into a stainless steel reaction kettle, 260 o C response 3days. The solid in the kettle was taken out, washed with 40% HF solution, and centrifuged to obtain mesoporous MoS 2 nanospheres.

Embodiment 3

[0038] Dissolve 1.2g of ammonium thiomolybdate solid in 10ml of water, add 110ml of benzene and 2g of surfactant to make a mixed solution, heat and stir, reflux, the temperature is controlled at 100°C, and the reaction time is 8h. Weigh SiO 2 Sol 20ml, mass fraction 8%, poured into the mixed solution, stirred for 1h. Put the mixture into a stainless steel reaction kettle, 200 o C response 3days. The solid in the kettle was taken out, washed with 15% HF solution, and centrifuged to obtain mesoporous MoS 2 nanospheres.

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Abstract

The invention relates to a method used for controllable preparation of monodisperse mesoporous molybdenum disulfide nanospheres, and belongs to the technical field of molybdenum disulfide nano material synthesis. The method comprises following steps: a surfactant, an organic solvent, and a Mo salt aqueous solution are mixed so as to obtain a mixed solution; the mixed solution is delivered into a glass bottle for stirring and heating reflux, wherein temperature is controlled to be 80 to 130 DEG C; SiO2 sol is added into the mixed solution dropwise; an obtained mixture is delivered into a stainless steel reaction vessel, the stainless steel reaction vessel is delivered into a drying oven for reaction, wherein reaction temperature is controlled to be 180 to 260 DEG C; an obtained solid product is collected from the stainless steel reaction vessel, and is washed with a fluorine-containing solution for a plurality of times so as to obtain target products. According to the method, self assembling of the mesoporous MoS2 nanospheres is realized using SiO2 templating agent and water vaporization of liquid microemulsion; microemulsion method is adopted, so that a problem that the size of nanospheres is uncontrollable is solved. The particle size distribution of the MoS2 nanospheres can be controlled effectively via controlling the amounts of the surfactant, water, the oil solvent, and the Mo salt.

Description

technical field [0001] The invention relates to a method for controllably preparing monodisperse mesoporous molybdenum disulfide nanospheres, belonging to the technical field of synthesis of molybdenum disulfide nanomaterials. Background technique [0002] Currently, molybdenum disulfide (MoS 2 ) The synthesis and performance testing of nanomaterials are one of the hot research topics. This kind of compounds are widely used in the fields of catalysis, biology, optoelectronics, environmental protection and so on, and have great potential value. In recent years, a variety of prepared MoS have been developed 2 Physical and chemical methods of nanomaterials. Explore low-cost, simple, efficient, controllable particle size, and controllable specific surface MoS 2 The preparation method of nanomaterials has always been the focus of research in this field. The difficulty in synthesizing such nanomaterials is to control the particle size distribution of nanoparticles, control the...

Claims

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Application Information

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IPC IPC(8): C01G39/06B82Y30/00
Inventor 张震威姜兴茂王非王鹏梁帅任婧
Owner CHANGZHOU UNIV
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