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Naphthalenetetracarboxylic dianhydride Zn-MOF (Zn-metal-organic framework) crystal material as well as a preparation method and application thereof

A technology of naphthalene tetraic anhydride and crystalline material, applied in the field of naphthalene tetraic anhydride Zn-MOF crystalline material and its preparation, can solve the problems of limited resources and high price, and achieve the effects of high catalytic efficiency, good stability and easy operation

Inactive Publication Date: 2019-01-25
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, it is generally believed that the most active oxygen evolution catalyst is iridium dioxide (IrO 2 ) and ruthenium dioxide (RuO 2 ), but its price is expensive and resources are limited, so it is an opportunity and a challenge to develop an efficient, cheap and earth-abundant non-precious metal oxygen evolution catalyst to reduce the electricity consumption of oxygen evolution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 A preparation method of naphthalenetetracarboxylic anhydride Zn-MOF crystal material

[0028] After blending the DMF / aqueous solution of 1,4,5,8-naphthalenetetracarboxylic acid anhydride with the aqueous solution of copper nitrate, let it stand at room temperature for 50 minutes, centrifuged, washed with ethanol 3 times, and dried overnight at 85°C;

[0029] The zinc nitrate aqueous solution is prepared by dissolving 0.25 solid zinc nitrate in 2.0 mL of water and ultrasonicating for 5 minutes.

[0030] The DMF / aqueous solution of 1,4,5,8-naphthalenetetracarboxylic acid anhydride is made by blending 0.012g of 1,4,5,8-naphthalenetetracarboxylic acid anhydride with a DMF / water mixed solvent, heating to 75°C and stirring be made of;

[0031] The DMF / water mixed solvent is prepared by blending 4.0 mL of distilled water and 4.0 mL of DMF.

Embodiment 2

[0032] Example 2. A preparation method of naphthalenetetracarboxylic anhydride Zn-MOF crystal material

[0033] After blending the DMF / aqueous solution of 1,4,5,8-naphthalenetetracarboxylic acid anhydride with the aqueous solution of zinc nitrate, it is made by standing at room temperature for 70 minutes, centrifuged, washed with ethanol 3 times, and dried overnight at 85°C;

[0034] The aqueous solution of zinc nitrate is prepared by dissolving 0.35 g of solid zinc nitrate in 3.0 mL of water and ultrasonicating for 5 min.

[0035] The DMF / aqueous solution of 1,4,5,8-naphthalenetetracarboxylic acid anhydride is made by blending 0.014g of 1,4,5,8-naphthalenetetracarboxylic acid anhydride with a DMF / water mixed solvent, heating to 85°C and stirring be made of;

[0036] The DMF / water mixed solvent is prepared by blending 6.0 mL of distilled water and 6.0 mL of DMF.

Embodiment 3

[0037] Example 3. A preparation method of naphthalenetetracarboxylic anhydride Zn-MOF crystal material

[0038] After blending the DMF / aqueous solution of 1,4,5,8-naphthalenetetracarboxylic acid anhydride with the aqueous solution of copper nitrate, let it stand at room temperature for 60 minutes, centrifuged, washed with ethanol 3 times, and dried overnight at 85°C;

[0039] The aqueous solution of zinc nitrate is prepared by dissolving 0.30 g of solid zinc nitrate in 2.5 mL of water and ultrasonicating for 5 min.

[0040] The DMF / aqueous solution of 1,4,5,8-naphthalenetetracarboxylic acid anhydride is made by blending 0.013g of 1,4,5,8-naphthalenetetracarboxylic acid anhydride with a DMF / water mixed solvent, heating to 80°C and stirring be made of;

[0041] The DMF / water mixed solvent is prepared by blending 5.0 mL of distilled water and 5.0 mL of DMF.

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Abstract

The invention discloses a naphthalenetetracarboxylic dianhydride Zn-MOF (Zn-metal-organic framework) crystal material, a preparation method for the crystal material and application of the crystal material to electrolysis of water and oxygen evolution, and belongs to the technical field of catalysis and metal-organic frameworks. The preparation method mainly comprises the steps that a naphthalenetetracarboxylic dianhydride solution and a zinc nitrate solution are mixed so as to generate crystals at the room temperature, and suction filtration and drying are carried out so as to prepare the naphthalenetetracarboxylic dianhydride Zn-MOF (Zn-metal-organic framework) crystal material. The Zn-MOF (Zn-metal-organic framework) crystal material has the advantages that the raw materials used are lowin cost, a preparation process is simple, the reaction energy consumption is low, and an industrial application prospect is achieved.

Description

Technical field [0001] The invention relates to a naphthalenetetracarboxylic acid anhydride Zn-MOF crystal material and a preparation method and application thereof, and belongs to the technical field of catalysis and metal organic framework materials. Background technique [0002] The rapid development of modern society has caused a huge demand for environmentally friendly and renewable energy hydrogen. As an ideal energy source, it is proposed to become the main energy source for the future world and belongs to the secondary energy. Today, the production of hydrogen is mainly through the steam methane reforming of natural gas (that is, the reaction between water and methane to form H 2 And CO 2 ). Therefore, the current production of hydrogen is accompanied by a series of greenhouse effects, so that neither regeneration nor carbon neutrality can be achieved. Compared with the widely used reforming hydrogen production, the use of water electrolysis to produce hydrogen is renewa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B7/14C30B29/58C08G83/00C25B1/04C25B11/06
CPCC08G83/008C25B1/04C30B7/14C30B29/58C25B11/075Y02E60/36
Inventor 董彦芳王志玲杨浩
Owner UNIV OF JINAN
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