Preparation method of three- dimensional MoS2

A three-dimensional, foamed nickel technology, applied in the direction of molybdenum sulfide, etc., to achieve the effect of strong operability, good process repeatability, and large specific surface area

Inactive Publication Date: 2015-11-04
JIANGSU XINGUANG ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] MoS prepared by different methods have been reported so far. 2 There are nanorods, nanotubes, nanowires, nanosphere

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1:

[0022] Take (NH 4 ) 2 MoS 4 And DMF, mixed into three-dimensional MoS 2 The reaction raw material solution, and the (NH 4 ) 2 MoS 4 The mass percentage is 1.1%, and then the foamed nickel substrate is immersed in the three-dimensional MoS 2 In the reaction raw material solution, and keep it for 15 min, then take it out and place it in a vacuum drying oven, and dry it at 70 ℃ for 25 min. Repeat the above steps 5 times to obtain (NH 4 ) 2 MoS 4 / Foam nickel, then (NH 4 ) 2 MoS 4 / The nickel foam is placed in a mixed atmosphere of argon and hydrogen with a volume ratio of 9.5:0.5 in a tube furnace at a temperature of 750℃ for 2h, and then cooled to room temperature to obtain MoS 2 / Foam nickel; MoS 2 / Put the nickel foam into a PMMA anisole solution with a mass fraction of 4% and a PMMA molecular weight of 950,000 for 1 min, then take it out, and then vacuum-dry it at 120℃ for 1 h to obtain PMMA-coated MoS 2 / Nickel foam, then will be coated with PMMA MoS 2 / The ni...

Example Embodiment

[0023] Example 2:

[0024] Take (NH 4 ) 2 MoS 4 And DMF, mixed into three-dimensional MoS 2 The reaction raw material solution, and the (NH 4 ) 2 MoS 4 The mass percentage is 1.1%, and then the foamed nickel substrate is immersed in the three-dimensional MoS 2 In the reaction raw material solution, and keep it for 20 min, then take it out and place it in a vacuum drying oven, and dry it at 70 ℃ for 35 min. Repeat the above steps 5 times to obtain (NH 4 ) 2 MoS 4 / Foam nickel, then (NH 4 ) 2 MoS 4 / The nickel foam is placed in a mixed atmosphere of argon and hydrogen with a volume ratio of 9.5:0.5 in a tube furnace at 700℃ for 2h, and then cooled to room temperature to obtain MoS 2 / Foam nickel; MoS 2 / Put the nickel foam into a PMMA anisole solution with a mass fraction of 4% and a PMMA molecular weight of 950,000 for 2 min, then take it out, and then vacuum-dry it at 120°C for 1 h to obtain PMMA-coated MoS 2 / Nickel foam, then will be coated with PMMA MoS 2 / The nickel foam is im...

Example Embodiment

[0025] Example 3:

[0026] Take (NH 4 ) 2 MoS 4 And DMF, mixed into three-dimensional MoS 2 The reaction raw material solution, and the (NH 4 ) 2 MoS 4 The mass percentage is 1.1%, and then the foamed nickel substrate is immersed in the three-dimensional MoS 2 In the reaction raw material solution, and keep it for 17 min, then take it out and place it in a vacuum drying oven, and dry it at 75 ℃ for 20 min. Repeat the above steps 5 times to obtain (NH 4 ) 2 MoS 4 / Foam nickel, then (NH 4 ) 2 MoS 4 / The nickel foam is placed in a mixed atmosphere of argon and hydrogen with a volume ratio of 9.5:0.5 in a tube furnace at 800℃ for 2h, and then cooled to room temperature to obtain MoS 2 / Foam nickel; MoS 2 / Put the nickel foam into a PMMA anisole solution with a mass fraction of 4% and a molecular weight of PMMA of 950,000 for 2 minutes, then take it out, and then vacuum-dry it at 130°C for 1 hour to obtain PMMA-coated MoS 2 / Nickel foam, then will be coated with PMMA MoS 2 / The nickel...

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PUM

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Abstract

The present invention discloses a preparation method of three- dimensional MoS2, including: reaction raw material solution preparation, (NH4) 2MoS4 / foam nickel preparation, MoS2 / foam nickel preparation, PMMA -coated MoS2 / foam nickel preparation, PMMA -coated three-dimensional MoS2 preparation and three-dimensional MoS2 preparation. The MoS2 produced by heat reduction method is constructed into a three-dimensional structure by template method, three-dimensional foam nickel morphology is reproduced, and the method is simple and reliable, well repeatable in process, and strongly operable. The three-dimensional MoS2 produced by the method copies the three-dimensional foam nickel morphology, has a larger surface area, has a certain mechanical strength, and can be used as a catalyst for dehydrogenation sulphuration and catalytic hydrogenation and the like.

Description

technical field [0001] The present invention relates to a kind of MoS 2 preparation method, especially a three-dimensional MoS 2 The preparation method belongs to the technical field of preparation methods of chemical materials. Background technique [0002] MoS 2 It is the main component of molybdenite, which belongs to the hexagonal crystal system. It is a compound with antimagnetic and semiconducting properties. It has a layered structure similar to graphite. The S-Mo-S in the sandwich layer has a strong co- The valence bonds are combined, and the layers are combined by weak van der Waals force. It has quite a lot of Mo-S facets and has a very large specific surface area. It is a hydrogenation reaction and isomerization reaction catalyst. MoS 2 It is chemically stable, insoluble in water, dilute acid and concentrated sulfuric acid, also in general alkali and organic solvents, only soluble in aqua regia and boiled concentrated sulfuric acid. MoS 2 As an excellent sol...

Claims

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Application Information

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IPC IPC(8): C01G39/06
Inventor 蔡亚菱康健高琍玲张玉岁朱文浩
Owner JIANGSU XINGUANG ENVIRONMENTAL PROTECTION ENG
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