Metal cation doped molybdenum disulfide material, preparation method and applications thereof

A metal cation, molybdenum disulfide technology, applied in molybdenum sulfide, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as changing the structure of molybdenum disulfide materials
CN106608652AActive Publication Date: 2017-05-03DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2017-05-03

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Abstract

The present invention relates to a metal cation doped molybdenum disulfide material, a preparation method and applications thereof. The preparation method comprises: dispersing and dissolving a molybdenum precursor in an ammonium sulfide solution, adjusting the pH value of the solution to more than or equal to 10 and less than or equal to 14 with ammonia water, carrying out a reaction at a temperature of 50-100 DEG C, adding a coordination reagent protected metal coordination compound solution to the solution after the reaction, stirring until achieving a dried state, carrying out vacuum drying, grinding the obtained solid powder, placing in an inert atmosphere (nitrogen or argon) gas flow, treating for 0.5-8 h at a temperature of 380-500 DEG C, and cooling to a room temperature to prepare the metal cation doped molybdenum disulfide material. According to the present invention, the metal cations are uniformly dispersed between each layer of molybdenum disulfide through the doping; the crystal structure of the metal cation doped molybdenum disulfide material maintains the two-dimensional layered structure of molybdenum disulfide; the material interlayer spacing fluctuates between 6.15-10.0 angstrom according to different types and different contents of the doped metals; and the metal cation doped molybdenum disulfide material has advantages of good thermal stability, strong-acid resistance and large specific surface area, and has potential applications in the fields of catalysis, electrode materials, and the like.
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Description

technical field

[0001] The invention belongs to the technical field of material synthesis, and in particular relates to a cation-doped molybdenum disulfide material and its preparation method and application. Background technique

[0002] As an important class of two-dimensional planar materials, molybdenum disulfide has a wide range of applications in catalysis, electrochemistry, and electronic devices. However, experiments and theoretical calculations have confirmed that the largest exposed surface of the molybdenum disulfide material is the chemically inert basal surface, and the highly active edge structure is less exposed. Improving its material activity will be a very important work.

[0003] In order to improve the catalytic properties of molybdenum disulfide, chemical or mechanical exfoliation techniques are usually used to exfoliate the bulk molybdenum disulfide material into single-layer or multi-layer nanosheets to expose more active edge structures. However, as...

Claims

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