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Synthesis method of molybdenum disulfide/carbon nano composite material

A composite material, molybdenum disulfide technology, applied in chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve the problems that the product performance is difficult to meet the application requirements, and the preparation steps are cumbersome.

Inactive Publication Date: 2017-02-22
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation steps are cumbersome, and the product performance is often difficult to meet the application requirements. Therefore, it is necessary to develop a preparation method for directly obtaining graphene-supported monodisperse nanoparticles.

Method used

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  • Synthesis method of molybdenum disulfide/carbon nano composite material
  • Synthesis method of molybdenum disulfide/carbon nano composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1, configure 0.25M (NH 4 ) 6 Mo 7 o 24 4H 2 O solution 40ml, then add 2g of potassium humate, and then configure 0.5M HNO 3 Solution 100ml. Under the condition of magnetic stirring, the (NH 4 ) 6 Mo 7 o 24 4H 2 The mixed solution of O and refined potassium humate was slowly added dropwise to HNO 3 in solution. After the above turbid liquid is left to stand, suck out the water in the upper layer, then freeze-dry the precipitate, take 1g of freeze-dried potassium humate-molybdic acid precursor and 10g of anhydrous sodium sulfate in a mass ratio of 1:10 Mix and grind, then roast in an Ar gas atmosphere at 600°C for 3 hours at a temperature gradient of 10°C / min, cool down to room temperature naturally, then wash the sample five times with water and ethanol, and finally store the sample in ethanol , drying at 50°C to obtain molybdenum sulfide / carbon nanocomposites

Embodiment 2

[0011] Embodiment 2, configure 0.25M (NH 4 ) 6 Mo 7 o 24 4H 2 O solution 40ml, then add 2g of potassium humate, and then configure 0.5M HNO 3 Solution 100ml. Under the condition of magnetic stirring, the (NH 4 ) 6 Mo 7 o 24 4H 2 The mixed solution of O and refined potassium humate was slowly added dropwise to HNO 3 in solution. After the above turbid liquid is left to stand, suck out the water in the upper layer, then freeze-dry the precipitate, take 1g of freeze-dried potassium humate-molybdic acid precursor and 10g of anhydrous sodium sulfate in a mass ratio of 1:10 Mix and grind, then roast in an Ar gas atmosphere at 700°C for 3 hours at a temperature gradient of 10°C / min, cool down to room temperature naturally, wash the sample five times with water and ethanol, and finally store the sample in ethanol , and dried at 50°C to obtain molybdenum sulfide / carbon nanocomposites.

Embodiment 3

[0012] Embodiment 3, configure 0.25M (NH 4 ) 6 Mo 7 o 24 4H 2 O solution 40ml, then add 2g of potassium humate, and then configure 0.5M HNO 3 Solution 100ml. Under the condition of magnetic stirring, the (NH 4 ) 6 Mo 7 o 24 4H 2 The mixed solution of O and refined potassium humate was slowly added dropwise to HNO 3 in solution. After the above turbid liquid is left to stand, suck out the water in the upper layer, then freeze-dry the precipitate, take 1g of freeze-dried potassium humate-molybdic acid precursor and 10g of anhydrous sodium sulfate in a mass ratio of 1:10 Mix and grind, then roast in an Ar gas atmosphere at 800°C for 3 hours at a temperature gradient of 10°C / min, cool down to room temperature naturally, and then wash the sample five times with water and ethanol, respectively, and finally store the sample in ethanol , and dried at 50°C to obtain molybdenum sulfide / carbon nanocomposites.

[0013] Potassium humate used in the above experiments was purcha...

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Abstract

The invention discloses a synthesis method of a molybdenum disulfide / carbon composite material for preparing potassium humate, belonging to the field of inorganic non-metal materials. The method comprises the following steps: dissolving a soluble molybdenum salt ammonium molybdate tetrahydrate in water, adding potassium humate into the solution, reversely dropping the mixed solution into nitric acid, and regulating the pH value to 1-3 to prepare a precipitate; and roasting in argon or any other inert atmosphere by a fused salt roasting process to generate carbon thermal reaction, thereby obtaining the composite structure on which nanorods with the length of 100nm or so are carried on the carbon film. The method has the advantages of simple technique and low cost. The biomass material potassium humate is used as the carbon source to directly synthesize the loaded nano composite structure.

Description

technical field [0001] The invention belongs to the technical field of research and development of new inorganic non-metallic materials, and specifically discloses a synthesis method involving co-precipitation and molten salt roasting of molybdenum disulfide / carbon nanocomposite materials. Background technique [0002] Molybdenum disulfide has a graphite-like layered structure and stable physical and chemical properties, and is widely used in solid lubricants, hydrogen storage materials, battery electrode materials, catalytic materials, etc. Nanoscale molybdenum disulfide materials are used as catalysts for coal liquefaction, coal pyrolysis, hydrodesulfurization in petroleum, and sulfur and nitrogen removal due to their strong adsorption capacity and high catalytic reactivity. However, due to the small particle size and high surface energy of nanoparticles, the agglomeration between particles is easy to occur, and the dispersion and stability of nanomaterials in the medium h...

Claims

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Application Information

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IPC IPC(8): B01J27/051B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00B01J27/051B01J35/40
Inventor 耿芹杨超宿新泰梁小玉闫宝林陈航赵云龙张敏王吉德
Owner XINJIANG UNIVERSITY
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