A kind of method for preparing supercapacitor by polypyridyl metal-organic framework ni-mof

A technology of supercapacitors and organic frameworks, applied in the manufacture of hybrid/electric double-layer capacitors, etc., can solve the problems of short cycle life and low power of energy storage devices, and achieve good energy storage effect, long service life, and fast response speed. Effect

Active Publication Date: 2021-09-07
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Technical problem to be solved: This application mainly proposes a method for preparing a supercapacitor by polypyridyl metal-organic framework Ni-MOF, and solves the technical problems of short cycle life and low power of energy storage devices in the prior art

Method used

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  • A kind of method for preparing supercapacitor by polypyridyl metal-organic framework ni-mof
  • A kind of method for preparing supercapacitor by polypyridyl metal-organic framework ni-mof
  • A kind of method for preparing supercapacitor by polypyridyl metal-organic framework ni-mof

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Effect test

Embodiment 1

[0038] Such as Figure 5 Shown, a kind of polypyridyl metal-organic framework Ni-MOF prepares the method for supercapacitor, comprises the steps:

[0039] The first step, organic building unit: the mass of 1,4-naphthalene dicarboxylic acid is 0.005g and the mass of 1,4-bis(2,2':6',2"-terpyridine-4'-yl) benzene Put 0.001g into an open glass bottle, add 5mL of distilled water;

[0040] The second step, inorganic building unit: add nickel-based metal salt Ni(Ac) to the open glass bottle 2 0.02g, and put the open glass bottle into the plastic liner, put the liner into the autoclave, and screw it tightly;

[0041] The third step, hydrothermal reaction: the temperature set in the constant temperature oven is 150°C, and the reaction time is 72h, and the high-pressure reactor is placed in the constant temperature oven for reaction, and the yellow dendritic polypyridyl metal organic framework is prepared. Material Ni-MOF;

[0042] The fourth step, collection: dry the polypyridyl me...

Embodiment 2

[0071] A kind of polypyridyl metal organic framework Ni-MOF prepares the method for supercapacitor, comprises the steps:

[0072] The first step, organic building unit: weigh Ni(Ac) according to the ratio of parts by mass 2 20 parts, 4 parts of 1,4-naphthalene dicarboxylic acid, 0.8 parts of 1,4-bis(2,2':6',2"-terpyridine-4'-yl)benzene, 1,4-naphthalene dicarboxylic acid 4 parts and 0.8 parts of 1,4-bis(2,2':6',2"-terpyridine-4'-yl)benzene were put into an open glass bottle, and 5 mL of distilled water was added;

[0073] The second step, inorganic building unit: adding nickel-based metal salt Ni(Ac) 2 20 parts, and put the glass bottle into the plastic liner, and put the liner into the autoclave;

[0074] The third step, hydrothermal reaction: the temperature set in the constant temperature oven is 130°C, and the reaction time is 60h, and the reaction is carried out in the constant temperature oven to prepare yellow dendritic Ni-MOF;

[0075] The fourth step, collection: dr...

Embodiment 3

[0079] A kind of polypyridyl metal organic framework Ni-MOF prepares the method for supercapacitor, comprises the steps:

[0080] The first step, organic building unit: weigh Ni(Ac) according to the ratio of parts by mass 2 20 parts, 6 parts of 1,4-naphthalene dicarboxylic acid, 1 part of 1,4-bis(2,2':6',2"-terpyridine-4'-yl)benzene, 1,4-naphthalene dicarboxylic acid 6 parts and 1 part of 1,4-bis(2,2':6',2"-terpyridine-4'-yl)benzene were put into an open glass bottle, and 5 mL of distilled water was added;

[0081] The second step, inorganic building unit: adding nickel-based metal salt Ni(Ac) 2 20 parts, and put the glass bottle into the plastic liner, and put the liner into the autoclave;

[0082] The third step, hydrothermal reaction: the temperature set in the constant temperature oven is 150°C, and the reaction time is 80h, and the reaction is carried out in the constant temperature oven to prepare yellow dendritic Ni-MOF;

[0083] The fourth step, collection: dry the ...

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Abstract

This application discloses a method for preparing a supercapacitor by polypyridine-based metal-organic framework Ni-MOF. The nickel-based metal and two organic ligands are mixed into an aqueous solution and stirred evenly. After the solution is completely dispersed, it is transferred to a reactor and placed in a Ni‑MOF was prepared by thermal reaction in an oven. At the same time, the material has high specific capacitance, good cycle stability, long service life, and fast response speed, which meets the requirements of high efficiency and durability of supercapacitors.

Description

technical field [0001] The invention belongs to the chemical field of electric energy storage materials, and in particular relates to a method for preparing supercapacitors by polypyridine-based metal-organic framework Ni-MOF. Background technique [0002] Metal-organic framework (MOFs) is a network or three-dimensional porous coordination polymer. Compared with traditional porous materials, it has the characteristics of large porosity and high specific surface area. In terms of structure, it can be based on the existing MOFs Similar ligands can be replaced to obtain larger pore size and specific surface area or a more regular structure. Functionally, different properties can be obtained by replacing metal ions with the same coordination number. Or by expanding the pore size, increasing the active sites, etc. to obtain better adsorption and storage performance. From hydrogen storage materials in the early stage of synthesis, to gas storage, dye adsorption, catalytic reactio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/84H01G11/86
CPCH01G11/84H01G11/86Y02E60/13
Inventor 何海燕李伟淇王益斌杨凡王国军杜协奥罗浪
Owner HOHAI UNIV
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