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Preparation method and application of MOF-derived NiCoO/C/NiCoAl-LDH/NF material

A reaction product, hydrothermal reaction technology, applied in hybrid/electric double-layer capacitor manufacturing, hybrid capacitor electrodes, etc., can solve the problems of poor conductivity of MOF, achieve easy operation, improve conductivity and stability, and increase active sites Effect

Inactive Publication Date: 2022-03-18
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor conductivity of MOF prepared by the existing method, and provide a preparation method and application of MOF derived NiCoO / C / NiCoAl-LDH / NF material

Method used

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  • Preparation method and application of MOF-derived NiCoO/C/NiCoAl-LDH/NF material
  • Preparation method and application of MOF-derived NiCoO/C/NiCoAl-LDH/NF material
  • Preparation method and application of MOF-derived NiCoO/C/NiCoAl-LDH/NF material

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Embodiment Construction

[0025] In order to deepen the understanding of the present invention, further detailed description is given below. This embodiment is a preparation method of MOF derived NiCoO / C / NiCoAl-LDH / NF material, which is completed according to the following steps:

[0026] (1) Preparation of NiCo-MOF / NF:

[0027] ①Under stirring, add 0.03mol / L nickel nitrate hexahydrate, 0.03mol / L cobalt nitrate hexahydrate and 0.1mol / L terephthalic acid to 40mL N,N-dimethylformamide, 10mL ethanol and 5mL In a mixed solution composed of water, continue to stir until the solution becomes clear to obtain a mixture I, and soak the treated clean NF in the mixture I;

[0028] ②The mixed solution I and NF were transferred to a polytetrafluoroethylene autoclave for hydrothermal reaction, heated at 120°C for 24 hours, and then naturally cooled to room temperature to obtain the reaction product I;

[0029] ③ Wash the reaction product I with N,N-dimethylformamide, and then use absolute ethanol to wash the react...

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Abstract

The invention discloses a preparation method and application of an MOF-derived NiCoO / C / NiCoAl-LDH / NF material, and relates to a preparation method and application of an MOF-derived composite material. The invention aims to solve the problem of poor conductivity of MOF (Metal Organic Framework) prepared by the existing method. The method comprises the following steps: 1, preparing NiCo-MOF / NF; 2, preparing NiCoO / C / NF; and 3, preparing NiCoO / C / NiCoAl-LDH / NF, wherein the MOF-derived NiCoO / C / NiCoAl-LDH / NF material is used as the electrode material of the supercapacitor. According to the invention, the MOF-derived NiCoO / C / NiCoAl-LDH / NF material can be obtained, and the MOF-derived NiCoO / C / NiCoAl-LDH / NF material is applied to a supercapacitor material and shows excellent electrochemical performance.

Description

technical field [0001] The invention relates to a preparation method and application of a MOF-derived composite material. Background technique [0002] Rechargeable lithium-ion batteries (LIBs) have solidified their position as the dominant energy source, powering nearly all electronics and electric vehicles (EVs). Although LIB has the advantage of high energy density, it has limitations such as poor cycle life and low power density. Supercapacitors, are currently being considered as an alternative technology to LIBs because they are safer, have about 10 times higher power density than LIBs, and can last for tens of thousands to millions of charge-discharge cycles. [0003] Metal-organic frameworks (MOFs) are a new class of porous crystalline materials, also known as porous coordination polymers. It is a kind of porous crystalline material formed by bridges between metal ions or metal clusters and organic ligands. Metal-organic framework materials have special structures ...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/24H01G11/30H01G11/32
CPCH01G11/86H01G11/24H01G11/30H01G11/32Y02E60/13
Inventor 张丽李超李峰博李少斌梁静炜
Owner QIQIHAR UNIVERSITY