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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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, the preparation methods and control methods

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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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[0027] Example 1

[0028] 1. Preparation of precursor material.

[0029] 0.08 g ammonium molybdenate (H 8 Mon 2 O 4 ) And 0.24 g of thiourea (CH 4 N 2 S) mixed into a beaker added to 60 ml of deionized water, uniformly dissolved, forming a clear and transparent solution. The mixed solution in the beaker was then transferred to 100 mL of the hydrofluoroethylene hydroline liner, and the hydrothermal housing was attached to the oven of an oven at 200 ° C for 16 h. After the reaction, the hydrothermal lining was taken out, and the black powder produced in the reaction solution was cleaned with deionized water and anhydrous ethanol, and then the vacuum powder was removed after 60 ° C ovens. .

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

[0031] Weigh 0.2G precursor material powder is installed in the jade boat, placed this jade boat in the middle of the tube furnace, and placed a 2G urea powder in the tubular furnace near the air intake. Calcined for 2 h at a high temperature...

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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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