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Nitrogen-doped defect-rich molybdenum disulfide catalyst as well as preparation method and application thereof

A molybdenum disulfide, defect-rich technology, applied in fuel cell type half cells and primary cell type half cells, electrical components, battery electrodes, etc., can solve problems such as immature control methods and achieve excellent electrochemical catalytic activity , low cost, excellent cycle stability effect

Inactive Publication Date: 2021-07-27
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the preparation methods and control methods for heteroatom doping of molybdenum disulfide are not yet mature.

Method used

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  • Nitrogen-doped defect-rich molybdenum disulfide catalyst as well as preparation method and application thereof
  • Nitrogen-doped defect-rich molybdenum disulfide catalyst as well as preparation method and application thereof
  • Nitrogen-doped defect-rich molybdenum disulfide catalyst as well as preparation method and application thereof

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Experimental program
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Embodiment 1

[0028] 1. Precursor material preparation.

[0029] Weigh 0.08g ammonium molybdate (H 8 MON 2 o 4 ) and 0.24g thiourea (CH 4 N 2 S) Mix and add to a beaker of 60mL deionized water and stir well, dissolve evenly, and form a clear and transparent solution. Then transfer the mixed solution in the beaker to the lining of a 100mL polytetrafluoroethylene hydrothermal kettle, install the outer shell of the hydrothermal kettle, and put it in an oven at 200°C for 16 hours of reaction. After the reaction is completed, take out the inner lining of the hydrothermal kettle, and centrifuge and wash the black powder product generated in the reaction solution with deionized water and absolute ethanol for several times, and then vacuumize and dry it in an oven at 60°C to obtain the precursor material powder .

[0030] 2. N-MoS 2 Preparation of catalyst materials.

[0031] Weigh 0.2g of precursor material powder into the corundum boat, place the corundum boat in the middle of the tube fu...

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Abstract

The invention belongs to the technical field of batteries, and particularly discloses a nitrogen-doped defect-rich molybdenum disulfide catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, preparing a precursor material by taking ammonium molybdate and thiourea as raw materials through a hydrothermal method, and then preparing a nitrogen-doped defect-rich molybdenum disulfide catalyst material N-MoS2 with a three-dimensional porous nano flower-shaped structure through subsequent heat treatment based on an atmosphere generated by urea decomposition. The invention provides a new way for efficient and controllable preparation of the heteroatom-doped molybdenum disulfide-based nano electrocatalyst material.

Description

technical field [0001] The invention belongs to the technical field of batteries, and specifically discloses a nitrogen-doped, defect-rich molybdenum disulfide catalyst, a preparation method and an application as a lithium-air battery cathode catalyst. Background technique [0002] With the continuous consumption of traditional fossil energy such as coal and oil, the resulting energy crisis and environmental pollution have become increasingly prominent. Therefore, all countries in the world have focused their attention on new energy technologies. In the Five-Year Plan, new energy and new energy vehicles are also regarded as strategic emerging industries that will be mainly developed in the future. New energy vehicles use new energy technologies and use high-energy-density energy storage battery systems as the main source of power to reduce or completely replace gasoline used in traditional vehicles, thereby achieving energy-saving, emission-reduction, and environmental prote...

Claims

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Application Information

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IPC IPC(8): H01M4/90H01M4/88H01M12/06
CPCH01M4/90H01M4/8885H01M12/06
Inventor 曹学成韩贞毅王楠陈龙
Owner JIANGSU UNIV
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