Tungsten disulfide microspheres as well as preparation method and application thereof
A technology of tungsten disulfide and microspheres, which is applied in chemical instruments and methods, tungsten compounds, inorganic chemistry, etc., can solve few problems and achieve the effects of uniform appearance, simple and easy-to-control preparation process, and low cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] Dissolve 0.75g of ammonium tungstate in 30mL of deionized water to prepare a 25mg / mL solution, then add 0.75g of thioacetamide, stir for 10min with a magnetic stirrer, then add 0.3g of oxalic acid, and stir the mixed solution for 10min again , and finally the stirred solution was transferred to a hydrothermal reaction kettle with a volume of 50mL; hydrothermal reaction was carried out at 240°C for 24h, then cooled naturally, after centrifugation, washed three times with deionized water and ethanol, and finally The centrifuged black sample was placed in a drying oven and kept at 80°C for 12 hours to obtain tungsten disulfide microspheres.
[0030] figure 1 For the XRD spectrum of the tungsten disulfide microspheres prepared in this embodiment, it can be seen that the product is pure WS 2 Hexagonal crystals.
[0031] figure 2 For the SEM photo of the tungsten disulfide microspheres prepared in this embodiment, it can be clearly seen from the low-magnification SEM phot...
Embodiment 2
[0033] Dissolve 0.9g of ammonium tungstate in 30mL of deionized water to prepare a 30mg / mL solution, then add 1.1g of thioacetamide, stir for 10min with a magnetic stirrer, then add 0.45g of oxalic acid to the mixed solution, and stir again for 15min , transfer the stirred solution to a hydrothermal reaction kettle with a volume of 50mL; carry out hydrothermal reaction at 250°C for 22h, then cool naturally, after centrifugation, wash three times with deionized water and ethanol, and finally put drying oven at 60°C for 15 hours to obtain tungsten disulfide microspheres; SEM photos and figure 2 resemblance.
[0034] image 3 For the EDS spectrum of the tungsten disulfide microspheres prepared in this example, only S and W elements exist in the figure, and the atomic ratio of the two elements is 1.97:1, indicating that the prepared product is pure WS 2 .
Embodiment 3
[0036] Dissolve 0.6g of ammonium tungstate in 30mL of deionized water to make a 20mg / mL solution, then add 0.6g of thioacetamide, stir for 15min with a magnetic stirrer, then add 0.3g of oxalic acid to the mixed solution, and stir again for 10min , transfer the stirred solution to a hydrothermal reaction kettle with a volume of 50mL; carry out hydrothermal reaction at 260°C for 26h, then cool naturally, after centrifugation, wash with deionized water and ethanol three times each, and finally put In a drying oven, dry at 60°C for 12 hours to obtain tungsten disulfide microspheres.
[0037] Figure 4 The SEM photo of the tungsten disulfide microspheres prepared for this example shows that the prepared samples are microspheres with uniform size.
PUM
| Property | Measurement | Unit |
|---|---|---|
| concentration | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More