Preparation method of tungsten disulfide nanorods

A technology of tungsten disulfide and nanorods, which is applied in chemical instruments and methods, nanotechnology, tungsten compounds, etc., can solve the problems of uneven particle size of nanorods, poor controllability of shape, and influence on application, and achieve layered The effect of obvious structure, low cost and high anti-oxidation performance

Inactive Publication Date: 2012-10-03
无锡润鹏复合新材料有限公司
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Benefits of technology

This patented technology describes methods for making certain types of metal sulfides (WS2) that are highly resistant towards wear or damage caused due to contact between them when they come into use at different temperatures and pressures. These structures also exhibit excellent stability even after long periods of storage over time without losing their effectiveness. Additionally, this new material's unique characteristics make its application possible on surfaces like bearings where reduced frictional force may cause problems.

Problems solved by technology

This patents discuss various ways to make small particles called wires or quantum dots from certain metallics like molysilver sulfide (MOS). These techniques involve converting these tiny structures into larger ones through different processes involving heat treatment, grinding, and dissolving them in water. However, current methods require expensive equipment and complex procedures, making it difficult to achieve consistently precise dimensions and shapes suitable for use in applications such as Tribology, PhotoChemistry, Chemoeletronics, Lubrification Catalysts and Liquids Chlorosuction Electrocatalysts.

Method used

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  • Preparation method of tungsten disulfide nanorods
  • Preparation method of tungsten disulfide nanorods
  • Preparation method of tungsten disulfide nanorods

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Dissolve 0.18g CTAB in 70ml of distilled water, then add 1.40g CS(NH 2 ) 2 , 0.725gNH 2 OH·HCl and 1.56g (NH 4 ) 2 WO 4 . After completely dissolving, add 2mol·L -1 Adjust the pH to around 6 with HCl. After stirring for 30 min, the mixture was transferred to a 100 ml stainless steel reaction kettle, placed in a vacuum drying oven at 180° C. for 24 h, and cooled to room temperature. After the reaction product was separated by centrifugation, it was washed repeatedly with deionized water and absolute ethanol, and finally dried at 80° C. for 10 h under vacuum to obtain a gray-black product powder, which was tungsten disulfide nanorods.

[0040] figure 1 The XRD pattern shows that the XRD peak position is consistent with the standard diffraction pattern (JCPDS84-1398), and the product is pure WS 2 Hexagonal crystal, the XRD peak of the (002) plane in the figure is very strong, while other peaks are weakened, indicating that WS 2 The hexagonal layered structure has...

Embodiment 2

[0042] Dissolve 0.30g PEG600 in 70ml of distilled water, then add 1.40g CS(NH 2 ) 2 , 0.725gNH 2 OH·HCl and 1.56g (NH 4 ) 2 WO 4 . After completely dissolving, add 2mol·L -1 Adjust the pH to around 6 with HCl. After stirring for 30 min, the mixture was transferred to a 100 ml stainless steel reaction kettle, placed in a vacuum drying oven at 180° C. for 24 h, and cooled to room temperature. After the reaction product was separated by centrifugation, it was washed repeatedly with deionized water and absolute ethanol, and finally dried at 80° C. for 10 h under vacuum to obtain a gray-black product powder, which was tungsten disulfide nanorods.

Embodiment 3

[0044] Dissolve 0.17g SDBS in 70ml of distilled water, then add 1.40g CS(NH 2 ) 2 , 0.725gNH 2 OH·HCl and 1.56g (NH 4 ) 2 WO 4 . After completely dissolving, add 2mol·L -1 Adjust the pH to around 6 with HCl. After stirring for 30 min, the mixture was transferred to a 100 ml stainless steel reaction kettle, placed in a vacuum drying oven at 180° C. for 24 h, and cooled to room temperature. After the reaction product was separated by centrifugation, it was washed repeatedly with deionized water and absolute ethanol, and finally dried at 80° C. for 10 h under vacuum to obtain a gray-black product powder, which was tungsten disulfide nanorods.

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Abstract

The invention relates to a preparation method of tungsten disulfide nanorods, belonging to the technical field of nano material preparation. The method provided by the invention comprises the following steps: (1) preparing a solution, that is, dissolving (NH4) 2WO4, CS (NH2) 2, NH2OH.HCl and a surfactant in water to obtain a solution, and then adjusting the pH value of the solution by acid to 5 to 6.5; (2) after stirring the solution obtained in the step (1), moving the solution into a stainless steel reaction kettle, sealing the solution, after thermostatic reaction, cooling the solution to room temperature, and obtaining a reaction product; and (3) separating, washing and drying the above reaction product to obtain tungsten disulfide nanorods. The tungsten disulfide nanorod prepared by the invention is uniform and controllable in particle size. The method disclosed by the invention is simple in process, low in cost, high in the purity of the obtained product, and high in yield, and has important applications in tribology, photochemistry and the like, and can be used for large-scale industrial production hopefully.

Description

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Claims

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Application Information

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Owner 无锡润鹏复合新材料有限公司
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