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Solid lubricating oil additive MoSe2 nanosheet and preparation method thereof

A technology of lubricating oil additives and nanosheets, applied in the direction of additives, nanostructure manufacturing, nanotechnology, etc., can solve the problems of environmental pollution, complex process control, etc., and achieve the effect of low price, easy control of parameters, and good crystallization

Inactive Publication Date: 2010-12-01
无锡润鹏复合新材料有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Currently about MoSe 2 Reports are rare, in which the synthesis of MoSe 2 The methods mainly include hydrothermal method, electrosynthesis method, thermal decomposition method, laser melting method, etc. However, the above-mentioned synthetic MoSe 2 The methods all involve complex process control, and the synthesized products are often amorphous MoSe 2 , further heat treatment process is required, and at the same time pollutes the environment

Method used

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  • Solid lubricating oil additive MoSe2 nanosheet and preparation method thereof
  • Solid lubricating oil additive MoSe2 nanosheet and preparation method thereof
  • Solid lubricating oil additive MoSe2 nanosheet and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Embodiment 1: Preparation of solid lubricating oil additive MoSe 2 Nanosheets

[0015] Weigh molybdenum powder (purity 99%) and selenium powder (purity 99.9%) according to the molar ratio of 1:3, mix the two and grind evenly with agate mortar, put into stainless steel reactor; In the furnace, raise the temperature in the furnace to 750°C at a heating rate of 10°C / min, and keep it for 1h; let the temperature in the high-temperature box-type furnace cool down to room temperature naturally (about 5h), and open the reaction kettle to see the dark brown powder It is the solid lubricating oil additive MoSe 2 Nanosheets.

[0016] To the solid lubricating oil additive MoSe of the present embodiment 2 The nanosheets were tested by X-ray energy spectroscopy (EDS), and the results were as follows: figure 1 As shown, it can be seen that the atomic ratio of Se / Mo is 1:2 (Se: 63.9%, Mo: 36.10%).

[0017] Observing the solid lubricating oil additive MoSe of the present embodiment...

Embodiment 2

[0019] Embodiment 2: Test solid lubricating oil additive MoSe 2 Tribological properties of nanosheets

[0020] The MoSe of Example 1 2 The nanosheets were added to the base oil 150bn according to the mass concentration of 1%, 5%, and 7%, respectively, and the above three types of MoSe were tested 2 The friction coefficient of the base oil 150bn and 150bn pure oil of nanosheets under different loads (0.5kg, 1kg, 2kg, 3kg, 4kg, 5kg), the load-friction coefficient relationship curve is made for the measurement results, and the results are as follows Figure 4 As shown, it can be seen that the addition of MoSe at different loads 2 The friction coefficient of base oil 150bn of nanosheets is lower than that of 150bn pure oil; under the same load conditions, when MoSe in base oil 150bn 2 When the mass concentration of nanosheets is 5%, the friction coefficient is the lowest. That is, the solid lubricating oil additive MoSe of the present invention 2 Nanosheets can significantly ...

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Abstract

The invention discloses a solid lubricating oil additive MoSe2 nanosheet and a preparation method thereof. Molybdenum powder and selenium powder are used as main raw materials to directly prepare the solid lubricating oil additive MoSe2 nanosheet through one-step solid phase reaction. The method of the invention has the advantages of easy acquisition of raw materials, low cost of raw materials, simple preparation technology, easy control of parameters and safe and environment-friendly production processes, and is especially suitable for large-scale industrial production. The solid lubricating oil additive MoSe2 nanosheet prepared by the method of the invention has the advantages of good crystallization, high purity and excellent lubricating property.

Description

technical field [0001] The invention relates to the field of lubricating materials, specifically, a solid lubricating oil additive MoSe 2 Nanosheets and methods for their preparation. Background technique [0002] Transition metal sulfur and selenides have various physical properties, such as metallicity, superconductivity, magnetism, semiconductor properties, etc., and are widely used in the fields of optoelectronics, catalysis, and friction. MoSe 2 It is a kind of transition group metal selenide, which has a lamellar structure similar to graphite. The Mo atoms and Se atoms in the layer are covalently bonded, and the layers are connected by van der Waals force, and the layers are easily connected. Exfoliated, with good anisotropy and low friction coefficient, it can be used as a matrix material in many fields such as host embedding, battery electrodes, hydrogen storage materials, catalysts, lubricants, etc. Currently about MoSe 2 Reports are rare, in which the synthesis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/04B82B3/00C10M125/22C10N30/06
Inventor 李长生彭红红唐华于小慧
Owner 无锡润鹏复合新材料有限公司
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