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Preparation method of inorganic fullerene molybdenum disulfide and its application

A fullerene molybdenum disulfide, molybdenum trisulfide technology, applied in the direction of zirconium sulfate, can solve the problems of reducing tribological properties, easy to be oxidized, etc., to reduce friction coefficient, reduce energy consumption, and improve anti-wear ability. Effect

Inactive Publication Date: 2006-03-29
ZHEJIANG UNIV
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Problems solved by technology

[0002] Layered molybdenum disulfide (2H-MoS 2 ) has been widely used as a traditional solid lubricant, but due to the chemical activity of unsaturated dangling bonds at the edge of its crystal, it is easily oxidized when rubbed in a humid or oxygen-rich environment, thereby reducing its tribological properties

Method used

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Embodiment

[0011] Using the chemical precipitation method, sodium sulfide and ammonium molybdate were dissolved in water at a mass percentage of 1:5.6 to fully react the two compounds, and at the same time, the theoretically obtainable mass of molybdenum trisulfide 30 times the concentration of 10% polyethylene An alcohol (PEG) aqueous solution is used as a dispersant. The above solution was titrated with hydrochloric acid to obtain brown precipitated molybdenum trisulfide. The molybdenum trisulfide precipitate was separated by centrifugation and vacuum-dried. It was desulfurized by hydrogen at 900°C in a quartz tube furnace under an argon atmosphere and kept for 8 hours to obtain a spherical shape with a nested layered closed structure with an average particle size of 100nm. Molybdenum disulfide nanoparticles.

[0012] 1.0% of inorganic fullerene molybdenum disulfide nanoparticles are added to the base oil containing 1.0% sorbitan oleate (Span80) to prepare lubricating oil. The tribological...

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Abstract

An inorganic fullerene MoS2 nanoparticle with enclosed nested luminar structure used as the additive of lubricating oil is prepared through proportionally dissolving sodium sulfide and ammonium molybdate in water, reaction while adding the aqueous solution of polyethanediol, dripping hydrochloric acid to obtain MoS3 deposit, centrifugal separation, vacuum drying, hydrodesulfurizing at 500-1000 deg.C in quartz-pipe furnace under protection of Ar gas, and holding the temp for 5-10 hr.

Description

Technical field [0001] The invention relates to a preparation method and application of inorganic fullerene molybdenum disulfide. Background technique [0002] Layered molybdenum disulfide (2H-MoS 2 ) Has been widely used as a traditional solid lubricant, but due to the chemical activity of the unsaturated dangling bonds on the edge of the crystal, it is easily oxidized when rubbed in a humid or oxygen-rich environment, thereby reducing its tribological performance. Inorganic fullerene molybdenum disulfide (IF-MoS 2 ) Due to the unique spherical nested layered closed structure, good chemical stability and excellent tribological properties, it has broad development prospects in the field of engineering applications. Summary of the invention [0003] The purpose of the present invention is to provide a method for preparing inorganic fullerene molybdenum disulfide with excellent anti-wear and anti-friction properties and its application in lubricating oil. [0004] The method for p...

Claims

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Application Information

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IPC IPC(8): C01G25/06
Inventor 涂江平邹同征黄海栋何丹农杨友志
Owner ZHEJIANG UNIV
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