Method for preparing single-layer 2H-phase tungsten disulfide/graphene composite material
A tungsten disulfide and composite material technology, applied in chemical instruments and methods, tungsten compounds, inorganic chemistry, etc., can solve problems such as single-layer tungsten disulfide nanosheets, and achieve low price, simple process operation, and mild reaction conditions. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] Weigh 0.004mol of lithium hydroxide and 0.002mol of ammonium thiotungstate respectively, mix and grind them in an agate mortar for 1 hour, put the ground mixture in a corundum crucible, place it in a tube furnace, and protect it with argon. , the temperature was raised to 600 ° C by program, and kept for 1 h, and then continued to pass argon gas to cool down to room temperature naturally to obtain lithium-intercalated 2H phase tungsten sulfide (Li 2 WS 4 ) block; place the lithium-inserted tungsten sulfide block in a container filled with 50mL of deionized water, and disperse it ultrasonically for 10 minutes. Add graphene oxide with a mass ratio of 1:0.005 to the tungsten disulfide content in the suspension, ultrasonically disperse for 10 minutes, add 0.25 mL of hydrazine hydrate with a mass fraction of 80%, and continue ultrasonicating for 0.5 h to obtain a single layer of 2H phase WS 2 / graphene suspension; the resulting monolayer 2H phase WS 2 The / graphene suspen...
Embodiment 2
[0022] Weigh 0.004 mol of lithium acetate and 0.002 mol of ammonium thiotungstate respectively, mix and grind them in an agate mortar for 1 hour, place the ground mixture in a corundum crucible, place it in a tube furnace, and protect it with argon. The temperature was raised to 200°C by program, kept for 10 hours, and then continued to cool down to room temperature naturally with argon gas to obtain lithium-intercalated 2H phase tungsten sulfide (Li 2 WS 4 ) block; place the lithium-inserted tungsten sulfide block in a container filled with 50mL of deionized water, and disperse it ultrasonically for 10 minutes. Add graphene oxide with a mass ratio of 1:0.01 to the content of tungsten disulfide in the suspension, ultrasonically disperse for 10 minutes, add 0.5 mL of hydrazine hydrate with a mass fraction of 80%, and continue ultrasonicating for 0.5 h to obtain a single layer of 2H phase WS 2 / graphene suspension; the resulting monolayer 2H phase WS 2 / Graphene suspension wa...
Embodiment 3
[0024] Weigh 0.004 mol of lithium nitrate and 0.002 mol of ammonium thiotungstate respectively, mix and grind them in an agate mortar for 1 hour, place the ground mixture in a corundum crucible, place it in a tube furnace, and protect it with argon gas. The temperature was raised to 300°C by program, kept for 5 hours, and then continued to flow argon to cool down to room temperature naturally to obtain lithium-intercalated 2H phase tungsten sulfide (Li 2 WS 4 ) block; place the lithium-inserted tungsten sulfide block in a container filled with 50mL of deionized water, and disperse it ultrasonically for 5 minutes. The content of tungsten disulfide in the suspension was added with graphene oxide at a mass ratio of 1:0.10, ultrasonically dispersed for 10 minutes, and then 2.5 mL of hydrazine hydrate with a mass fraction of 80% was added, and ultrasonication was continued for 1 hour to obtain a single layer of 2H phase WS. 2 / graphene suspension; the resulting monolayer 2H phase...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More