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Mixed-ligand porous aluminum metal organic framework material and preparation method thereof

A technology of metal-organic frameworks and mixed ligands, applied in organic chemistry, chemical instruments and methods, and other chemical processes, can solve unseen problems and achieve low cost, high yield, and wide application prospects

Inactive Publication Date: 2014-03-26
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] So far, there are no related reports on porous aluminum metal-organic framework materials containing mixed ligands of 1,4-naphthalene dicarboxylic acid

Method used

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  • Mixed-ligand porous aluminum metal organic framework material and preparation method thereof
  • Mixed-ligand porous aluminum metal organic framework material and preparation method thereof
  • Mixed-ligand porous aluminum metal organic framework material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Weigh 7.5g of aluminum nitrate and 1.08g of 1,4-naphthalene dicarboxylic acid / 2.72g of 2-aminoterephthalic acid (molar ratio: 5:15, the addition percentage is 25%) and dissolve in 195ml N,N- Dimethylformamide was fully dissolved by magnetic stirring, and then the mixed solution was transferred to three 100ml stainless steel reaction kettles lined with polytetrafluoroethylene, reacted in a synthesis oven at 220°C for 3 days, and cooled naturally to room temperature.

[0032] 2) The product was suction filtered, washed with N,N-dimethylformamide, dried at 50°C, and finally calcined at 200°C for 8 hours to obtain the target product.

[0033] 3) Gas isothermal adsorption performance test: the treatment condition is degassing at 200°C for 24 hours. The test condition is 77K, isothermal adsorption of nitrogen and hydrogen; carbon dioxide adsorption test at 273K.

Embodiment 2

[0035] 1) Weigh 7.5g of aluminum nitrate and 2.18g of 1,4-naphthalene dicarboxylic acid / 1.82g of 2-aminoterephthalic acid (molar ratio: 10:10, the percentage added is 50%) and dissolve in 195ml of N,N- Dimethylformamide was fully dissolved by magnetic stirring, and then the mixed solution was transferred to three 100ml stainless steel reaction kettles lined with polytetrafluoroethylene, reacted in a synthesis oven at 220°C for 3 days, and cooled naturally to room temperature.

[0036] 2) The product was suction filtered, washed with N,N-dimethylformamide, dried at 50°C, and finally calcined at 200°C for 8 hours to obtain the target product.

[0037] 3) Gas isothermal adsorption performance test: the treatment condition is degassing at 200°C for 24 hours. The test conditions are 77K, isothermal adsorption of nitrogen and hydrogen; carbon dioxide adsorption test at 273K.

Embodiment 3

[0039] 1) Weigh 7.5g of aluminum nitrate and 1.61g of 1,4-naphthalene dicarboxylic acid / 0.91g of 2-aminoterephthalic acid (molar ratio: 15:5, the percentage added is 75%) and dissolve in 195ml of N,N-dimethyl base formamide, magnetically stirred to make it fully dissolved, and then the mixed solution was transferred to three 100ml stainless steel reaction kettles lined with polytetrafluoroethylene, reacted in a synthesis oven at 220°C for 3 days, and naturally cooled to room temperature.

[0040] 2) The product was suction filtered, washed with N,N-dimethylformamide, dried at 50°C, and finally calcined at 200°C for 8 hours to obtain the target product.

[0041] 3) Gas isothermal adsorption performance test: the treatment condition is degassing at 200°C for 24 hours. The test conditions are 77K, isothermal adsorption of nitrogen and hydrogen; carbon dioxide adsorption test at 273K.

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Abstract

The invention relates to a mixed-ligand porous aluminum metal organic framework material and a preparation method thereof and mainly provides an aluminum-metal-containing organic framework material with a mixed ligand and adjustable pore structure, and a preparation method of the organic framework material. The preparation method comprises the following steps: dissolving reactants (inorganic aluminum salt and organic carboxylic acid) in an organic solvent, performing a crystallization reaction on the mixed solution for 3-90 hours at the temperature of 120-220 DEG C, taking out after naturally cooling, and performing suction filtration, washing, drying and roasting to obtain the metal organic framework material with porosity characteristic. The preparation method is simple in process and low in cost, and can be used for preparing the porous aluminum metal organic framework material under a mild condition. The structure of the prepared material with the mixed ligand can be adjusted, and the prepared material has wide application prospect in the aspects of adsorption, separation, catalysis and drug release.

Description

technical field [0001] The invention relates to a porous metal organic framework material, in particular to a mixed ligand porous aluminum metal organic framework material and a preparation method thereof. Background technique [0002] Metal-organic framework materials are metal ions and organic ligands connected to each other through covalent bonds or ionic bonds to form a type of coordination polymer material. This type of material has potential practical application value in gas storage, catalysis, separation, nonlinearity, magnetism, luminescence, etc., and has attracted extensive attention from researchers from all over the world. In recent years, this type of material has become a hot spot in the research of new functional materials. Recently, several research groups in the world have prepared metal-organic framework materials containing mixed ligands by methods such as hydrothermal method / solvothermal method. These materials have good prospects for storage of hydrogen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/06B01J20/22B01J20/30
Inventor 孙立贤张箭徐芬李芬赵梓名
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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