Curved-surface molybdenum disulfide nanosheet and preparation method thereof

A molybdenum disulfide and nanosheet technology, applied in the direction of molybdenum sulfide, nanotechnology for material and surface science, nanotechnology, etc., can solve the problems of complex preparation process, low efficiency, and difficulty in mass production, and achieve macro-quantification. simple steps

Active Publication Date: 2014-10-22
太湖县市场监督检验所(太湖县功能膜检测研究院)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The commonly used micromechanical force exfoliation method, metal ion or surfactant ion intercalation, liquid phase ultrasonic method, high temperature thermal decomposition method, etc. have problems such as complex preparation process, low efficiency, poor repeatability and difficulty in mass production.

Method used

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  • Curved-surface molybdenum disulfide nanosheet and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 0.06 g of sodium molybdate and 0.24 g of thioacetamide respectively, dissolve them in a mixed solution of 40 ml of deionized water and N-methylpyrrolidone with a volume ratio of 1:4, and transfer them to 50 ml of in a polytetrafluoro container and fixed in a stainless steel reaction kettle (polytetrafluoro container, to avoid the use of metal ions in metal containers to participate in the reaction to cause pollution), and then directly heated in an oven at 200 degrees for 12 hours, until the reaction kettle When the temperature naturally drops to 25 degrees, the obtained reactant is washed three times with water and ethanol respectively, and the washed sample is dried in a 60 degree oven for 4 hours. figure 1 Scanning electron micrograph of the curved molybdenum disulfide nanosheets prepared in Example 1. Depend on figure 1 It can be seen that the molybdenum disulfide nanosheets have a diameter of about 100 nanometers and are curved.

Embodiment 2

[0022] Weigh 0.3 g of sodium molybdate and 1.2 g of thioacetamide respectively, dissolve them in a mixed solution of 40 ml of deionized water and N-methylpyrrolidone with a volume ratio of 1:4, and transfer them to 50 ml of In a polytetrafluoro container and fixed in a stainless steel reaction kettle, and then directly heated in an oven at 200 degrees for 12 hours, when the temperature of the reaction kettle is naturally lowered to 30 degrees, the obtained reactants were respectively watered and ethanol sequentially After washing 3 times, the washed sample was dried in a 60-degree oven for 4 hours to obtain curved molybdenum disulfide nanosheets.

Embodiment 3

[0024] Weigh 0.06 g of sodium molybdate and 0.48 g of thioacetamide respectively, dissolve them in a mixed solution of 40 ml of deionized water and N-methylpyrrolidone with a volume ratio of 4:1, and transfer to 50 ml of In a polytetrafluoro container and fixed in a stainless steel reaction kettle, and then directly heated in an oven at 200 degrees for 12 hours, when the temperature of the reaction kettle is naturally lowered to 26 degrees, the obtained reactants were respectively watered and ethanol sequentially After washing 3 times, the washed sample was dried in a 60-degree oven for 4 hours to obtain curved molybdenum disulfide nanosheets.

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Abstract

The invention belongs to the technical field of inorganic functional nano materials, and particularly relates to a curved-surface molybdenum disulfide nanosheet and a preparation method thereof. The preparation method comprises the following steps: 1. dissolving a molybdenum source and a sulfur source in a mixed solution composed of deionized water and N-methylpyrrolidone, and carrying out heat treatment to obtain a reaction product A, wherein the mole ratio of the sulfur source to the molybdenum source is 1:8-1:32, the volume ratio of the deionized water to the N-methylpyrrolidone in the mixed solution is 1:4-4:1, the heat treatment temperature is 180-240 DEG C, and the heat treatment time is 5-30 hours; and 2. alternately washing the reaction product obtained in the step 1 with water and ethanol, and drying at 50-80 DEG C to obtain the curved-surface molybdenum disulfide nanosheet. By using the N-methylpyrrolidone as the solvent, the method can be used for quickly preparing the curved-surface molybdenum disulfide nanosheet by simple magnanimous steps.

Description

technical field [0001] The invention belongs to the technical field of inorganic functional nanometer materials, and in particular relates to a curved molybdenum disulfide nanosheet and a preparation method thereof. Background technique [0002] Graphene-like molybdenum disulfide composed of thin-layer molybdenum disulfide is a new type of two-dimensional layered compound with graphene-like structure and properties. , chemistry, materials, electronics and many other fields of scientific and technological workers' extensive attention. Graphene-like molybdenum disulfide has important applications in the fields of lubricants, catalysis, composite materials, secondary batteries, field effect transistors, sensors, organic electroluminescent diodes, and electrical storage and other optoelectronic devices. [0003] At present, common methods for preparing graphene-like molybdenum disulfide include micromechanical force exfoliation, metal ion and surfactant ion intercalation, liqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G39/06B82Y30/00B82Y40/00
Inventor 马建民毛玉华
Owner 太湖县市场监督检验所(太湖县功能膜检测研究院)
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