Molybdenum Disulfide Nanosheet - Processes

Introduction

First of all, mixe the 5g of MoS3 and 10g of sulfur and place in a high energy planetary ball mill, under the protection of argon at the speed of 400 r/min milling for 24 hours, then add 900g stainless steel balls as milling media. Put the 1g samples which have been milled and 5g sulfur respectively on the two burning boat, immediately push it into the heating zone tube resistance furnace, milling mixture is placed in the middle of furnace tube and sulfur is placed upstream of the gas flow of the tube. Constant for 2 hours at 600 ℃ and argon, with the furnace cooled to room temperature, the final product, a black molybdenum disulfide nanosheets would be obtained.

Micromechanical Exfoliation

Micromechanical exfoliation method is to use a special adhesive tape to peel molybdenum disulfide powder, that means use adhesion of adhesive tape to overcome the Van der Waals' force between layers so as to achieve the purpose of peeling, further obatin unilamellar or multilamellar molybdenum disulfide nanosheet.

Lithium Ion Intercalation

Lithium ion intercalation method is the use of intercalation agent, such as butyl lithium is inserted into the two-dimensional layered nanomaterials, increasing the interlayer spacing of material to weaken the van der Waals forces, and then ultrasound, and ultimately get a single layer nanosheet.

Liquid Ultrasound

Ultrasonic liquid is a new way. Generally, second-rate landscaped powder was added directly in a particular organic solvent or water, using ultrasonic to prepare single or multiple layers of molybdenum disulfide solution.

CVD

CVD method is to decompose the Mo and solid precursor of S at a high temperature, releasing Mo and S atoms would deposite on the substrate, and gradually grow into a film of MoS2.

Hydrothermal

Hydrothermal means that in closed reactor (autoclave) and water is used as a medium, by heating the reaction system to produce a high temperature and pressure environment to prepare material.