Metal phase molybdenum disulfide, electrode, preparation method, electrocatalyst and energy storage element

A technology of molybdenum disulfide and metal phase, applied in the field of materials, can solve the problems of low safety, long production cycle, complex equipment, etc., and achieve the effect of simple equipment, short reaction time and low reaction temperature

Inactive Publication Date: 2020-05-08
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a metal phase molybdenum disulfide, an electrode, a preparation method, an electrocatalyst, and an energy storage element, so as to solve the problem that most of the synthesis of the existing metal phase molybdenum disulfide proposed in the above background technology uses tert-butyl Lithium, as a raw material, has the problems of complex equipment, low safety, and long production cycle

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  • Metal phase molybdenum disulfide, electrode, preparation method, electrocatalyst and energy storage element
  • Metal phase molybdenum disulfide, electrode, preparation method, electrocatalyst and energy storage element
  • Metal phase molybdenum disulfide, electrode, preparation method, electrocatalyst and energy storage element

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Effect test

Embodiment 1

[0049] A metal phase molybdenum disulfide, the specific preparation method is as follows:

[0050] 1) Weigh 0.24g of sodium molybdate and 0.48g of thiourea, dissolve them in 16mL of water, stir to form a homogeneous solution, and obtain the first solution;

[0051] 2) Add 8 mL of propionic acid to the first solution, continue to stir until the mixture is evenly mixed to obtain a mixed solution, then transfer the mixed solution to a 50 mL reaction kettle, seal it, and conduct a hydrothermal reaction in an oven at 180°C for 4 hours;

[0052] 3) Naturally cool to room temperature after the hydrothermal reaction, centrifuge the obtained solid product, wash it several times with deionized water and ethanol respectively, collect the solid product, and dry it in vacuum to obtain metal phase molybdenum disulfide powder.

Embodiment 2

[0054] A metal phase molybdenum disulfide, the specific preparation method is as follows:

[0055] 1) Weigh 0.24g of sodium molybdate and 0.48g of thiourea, dissolve them in 16mL of water, stir to form a homogeneous solution, and obtain the first solution;

[0056] 2) Add 6 mL of acetic acid to the first solution, continue to stir until the mixture is evenly mixed to obtain a mixed solution, then transfer the mixed solution to a 50 mL reaction kettle, and conduct a hydrothermal reaction in an oven at 180°C for 4 hours after sealing;

[0057] 3) Naturally cool to room temperature after the hydrothermal reaction, centrifuge the obtained solid product, wash it several times with deionized water and ethanol respectively, collect the solid product, and dry it in vacuum to obtain metal phase molybdenum disulfide powder.

Embodiment 3

[0059] A self-supporting structure electrode, the specific preparation method is as follows:

[0060] 1) Weigh 0.024g of sodium molybdate and 0.048g of thiourea, dissolve them in 10mL of water, stir to form a homogeneous solution, and obtain the first solution;

[0061] 2) Add 5mL propionic acid to the first solution, continue to stir until the mixture is evenly mixed to obtain a mixed solution, then transfer the mixed solution to a 50mL reactor, and then add carbon cloth into the reactor as a base material, after the reactor is closed Hydrothermal reaction in an oven at 180°C for 8 hours;

[0062] 3) Naturally cool to room temperature after the hydrothermal reaction, take out the carbon cloth, wash it with ethanol several times, and dry it in vacuum to obtain a self-supporting structure electrode, which includes carbon cloth and a metal phase grown on the carbon cloth Molybdenum disulfide self-supporting structure.

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Abstract

The invention relates to the field of materials, and particularly discloses metal-phase molybdenum disulfide, an electrode, a preparation method, an electrocatalyst and an energy storage element. Themetal-phase molybdenum disulfide comprises the following raw materials: a molybdenum source, a sulfur source, an organic acid and a proper amount of water; wherein the organic acid is selected from acetic acid or propionic acid. According to the metal-phase molybdenum disulfide provided by the embodiment of the invention, the organic acid is used as an additive to promote the formation of the metal-phase molybdenum disulfide; the content of the metal-phase molybdenum disulfide in the product can reach 72%. The method has the advantages of being simple, safe and suitable for large-scale production, and the problems that existing synthesis of the metal-phase molybdenum disulfide mostly adopts tert-butyl lithium as a raw material, equipment is complex, safety is low, and the production periodis long are solved. The preparation method provided by the embodiment of the invention is low in required reaction temperature, short in reaction time, simple in equipment, energy-saving, safe in used medicines and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of materials, in particular to a metal phase molybdenum disulfide, an electrode, a preparation method, an electrocatalyst, and an energy storage element. Background technique [0002] Molybdenum disulfide is a typical two-dimensional layered compound. The layer is composed of S-Mo-S three-layer atoms. Because of its unique two-dimensional structure and physical and chemical properties, it is widely used in lubricants, semiconductor materials, catalysts, energy chemistry and other fields. It has broad application prospects. According to the arrangement of S-Mo-S in the layer, molybdenum disulfide can be divided into 1T phase and 2H phase. Among them, 1T-phase molybdenum disulfide has a conductivity similar to that of metal, and its conductivity is 5 orders of magnitude higher than that of 2H-phase molybdenum disulfide, so it is also called metal phase molybdenum disulfide. It is used in electrocatalysis, batteries, T...

Claims

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Application Information

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IPC IPC(8): C01G39/06H01M4/36H01M4/58H01M4/62H01M10/0525B01J27/051H01M4/02
CPCC01G39/06H01M4/362H01M4/5815H01M4/625H01M10/0525B01J27/051H01M2004/027C01P2004/03C01P2002/72B01J35/33Y02E60/10
Inventor 李楠刘志鹏王凯雯黄国庆苑世盛
Owner JILIN UNIV
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