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NiMn MOF as well as preparation method and application thereof

A technology of hydrothermal method and naphthalene dicarboxylic acid, applied in chemical instruments and methods, nanotechnology for materials and surface science, inorganic chemistry, etc., can solve the problems of complicated preparation process and unfriendly environment, and achieve a certain specific surface area Adjustable, shape-controllable, and composition-controllable effects

Active Publication Date: 2020-12-18
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a NiMn MOF and its preparation method and application, to solve the problems of unfriendly environment caused by the use of organic solvents in the existing preparation methods and the complicated preparation process caused by the addition of surfactants. question

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  • NiMn MOF as well as preparation method and application thereof
  • NiMn MOF as well as preparation method and application thereof
  • NiMn MOF as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038]A preparation method of NiMn MOF includes the following steps:

[0039]1) Mix 2,6-naphthalenedicarboxylic acid and deionized water according to the ratio of the amount of substances to 0.05:1, adjust the pH to 8, and ultrasonicate for 30 minutes to obtain solution A;

[0040]2) Add nickel nitrate and manganese acetate to solution A in a ratio of 1:1.5, where the ratio of nickel nitrate to 2,6-naphthalenedicarboxylic acid is 1:2, ultrasonic for 30min to get mixed Solution B;

[0041]3) Transfer the mixed solution B to the reaction kettle and put it in the oven, and hydrothermally react at 80℃ for 5h. After the reaction, filter with suction and wash with deionized water for three times. After freeze-drying, the linear manganese MOF grown flake nickel MOF is obtained. The bimetal MOF.

[0042]Seefigure 1 The bimetal MOF prepared by the hydrothermal reaction in this embodiment is a NiMn MOF in which a linear strip-shaped manganese MOF grows a sheet-shaped nickel MOF. The length of the NiMn ...

Embodiment 2

[0044]A preparation method of NiMn MOF includes the following steps:

[0045]1) Mix 2,6-naphthalenedicarboxylic acid and deionized water according to the ratio of the amount of substances to 0.1:1, adjust the pH to 9, and ultrasonicate for 30 minutes to obtain solution A;

[0046]2) Add nickel acetate and manganese acetate to solution A in a ratio of 1:2, where the ratio of nickel acetate to 2,6-naphthalenedicarboxylic acid is 1:2.5, ultrasonic for 30min to get the mixture Solution B;

[0047]3) Transfer the mixed solution B to the reaction kettle and put it in the oven, and hydrothermally react at 100°C for 5 hours. After the reaction is completed, it is suction filtered and washed with deionized water three times. After freeze-drying, a linear ribbon-shaped manganese MOF bonded flake is obtained Bimetallic MOF of nickel MOF.

[0048]The NiMn MOF prepared by the hydrothermal reaction in this embodiment is a NiMn MOF obtained by growing flake nickel MOF with linear band-shaped manganese MOF. Th...

Embodiment 3

[0050]A preparation method of NiMn MOF includes the following steps:

[0051]1) Mix 1,5-dipotassium naphthalate and deionized water according to the ratio of the amount of substances to 0.15:1, adjust the pH to 10, and ultrasound for 30 minutes to obtain solution A;

[0052]2) Add nickel sulfate and manganese sulfate to solution A according to the substance amount ratio of 1:1.6, where the substance amount ratio of nickel sulfate to 1,5-dipotassium naphthalate is 1:2.2, ultrasonic for 30min Obtain mixed solution B;

[0053]3) Transfer the mixed solution B to the reactor and put it in the oven, and hydrothermally react at 90°C for 10 hours. After the reaction, it is filtered off with suction and washed with deionized water three times. After freeze-drying, a linear ribbon-shaped manganese MOF growth sheet is obtained. Bimetallic MOF of nickel MOF. The NiMn MOF prepared by the hydrothermal reaction in this embodiment is a NiMn MOF obtained by growing flake nickel MOF with linear band-shaped ma...

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Abstract

The invention discloses a NiMn MOF and a preparation method and application thereof, nickel salt, manganese salt and organic acid / organic acid salt containing naphthalic acid are used as raw materials, deionized water is only used as a solvent, and a hydrothermal method is used for preparing alinear strip-shaped heterojunction composite MOF with Mn MOF growing on sheet-shaped Ni MOF. The NiMn MOFprepared by the method has the characteristics of controllable morphology and controllable composition. The method does not need to add a template or a surfactant, and has the advantages of low reaction temperature, simplicity and easiness in operation and control, environmental friendliness and the like.

Description

Technical field[0001]The invention belongs to the technical field of new materials, and relates to a preparation method of a nano material and a metal-organic framework compound (MOF), in particular to a NiMn MOF and a preparation method and application thereof.Background technique[0002]Metal-organic framework compounds (MOFs) are a new type of crystal material with high specific surface area, large porosity and coordination structure diversity formed by self-assembly of metal ion clusters and organic ligands. MOF materials contain covalent bonds. , Coordination bond and intermolecular force, and rich in design in the synthesis method, often showing some unique physical and chemical properties. MOF materials are centered on active metal ions, and can be directly applied to fields such as supercapacitors, gas storage, catalysis, sensors, and drug carriers. Because the MOF material has a special morphology and porous structure, it is often used as a precursor to prepare porous carbon ...

Claims

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Application Information

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IPC IPC(8): C08G83/00C01G53/11C01G53/04C01G45/00C01G45/02C01B25/08C01B32/15B82Y30/00B82Y40/00B22F9/20
CPCB22F9/20B82Y30/00B82Y40/00C01B25/08C01G45/00C01G45/02C01G53/04C01G53/11C01P2004/80C08G83/008C01B32/15
Inventor 马明波杜显锋熊礼龙
Owner XI AN JIAOTONG UNIV
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