Patent ID: 11946161
Assignee: INSTITUTE OF ANALYSIS, GUANGDONG ACADEMY OF SCIENCES (CHINA NATIONAL ANALYTICAL CENTER, GUANGZHOU)
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 8:
9. The method according to claim 8, wherein the method for synthesizing the intergrown twin Ni2Mo6S6O2/MoS2 two-dimensional nanosheet with exposed (00L) crystal planes comprises the steps of:
1. Obtaining a first solution, by dissolving a molybdenum source and a nickel source in a H2O2 aqueous solution, and heating at a constant temperature until the molybdenum source and the nickel source are completely dissolved; wherein a Mo:Ni molar ratio of the molybdenum source and the nickel source is 1:1-1:2, a mass percentage of the H2O2 aqueous solution is 1-10 wt. %, and a temperature of the heating is 60-90° C.;
2. Obtaining a second saturated solution containing a large amount of undissolved soluble salt solids, by adding a soluble salt into pure water under heating to obtain a first mixture, and stirring, and stopping the heating and stirring after a crystallization occurs above the first mixture and cooling the first mixture in ice water; wherein the soluble salt comprises sodium chloride, potassium chloride, sodium sulfate and potassium sulfate;
3. Obtaining a second mixture, by mixing and stirring the first solution, the second solution, and all the undissolved soluble salt solids of step 2);
4. Obtaining a dry solid, by placing the second mixture in liquid nitrogen for freezing and then placing the second mixture in a vacuum freeze dryer for vacuum freeze-drying for 12-48 hours, wherein the dry solid obtained is placed in a first porcelain boat, and then the first porcelain boat is placed in a center of a tube furnace, and a second porcelain boat containing a sulfur source is placed at an uptake port of the first porcelain boat, and a distance between the first porcelain boat and the second porcelain boat is precisely adjusted to be 3-4 cm;
5. Introducing inert gas into the tube furnace, adjusting and controlling a flow rate of the inert gas to be 10-25 mL/min, and raising a temperature to a target temperature for constant temperature calcination; wherein a temperature raising rate is 1-10° C./min, the target temperature is 300-500° C., and a constant temperature calcination time is 1-10 hours; and
6. Taking out the first porcelain boat after a vulcanization is completed, and washing a sample in the first porcelain boat with pure water and ethanol and then drying at room temperature, wherein a resulting product is the intergrown twin Ni2Mo6S6O2/MoS2 two-dimensional nanosheet.