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a for n 2 oAdsorbed metal organic framework material and preparation method thereof

A metal-organic framework and organic framework technology are applied in the field of N2O-adsorbed metal-organic framework materials and their preparation, which can solve problems such as unsatisfactory effects, and achieve the effects of good application prospects, good acid-base stability, and high thermal stability.

Inactive Publication Date: 2016-08-24
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In 2010, Prof. DENG SHUGUANG's research group used classic MOFs materials, MOF-5 and MOF-177 for N 2 O adsorption research at room temperature, but the effect is not ideal

Method used

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  • a for n <sub>2</sub> oAdsorbed metal organic framework material and preparation method thereof
  • a for n <sub>2</sub> oAdsorbed metal organic framework material and preparation method thereof

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Embodiment

[0022] one for N 2 O-adsorbed metal-organic framework materials, the chemical formula is {[(CH 3 ) 2 NH 2 ] 19 [Ni 24 (bptc) 9 (H 2 O) 12 (μ 2 -O) 12 (μ 3 -OH) 4 (μ 4 -OH) 3 ]·5H 2 O·DMA} n , where: n is a natural number from 1 to positive infinity, bptc is 3,3’,5,5’-biphenyltetramethylcarboxylate ion, DMA is N,N-dimethylacetamide, (CH 3 ) 2 NH 2is a dimethylamine cation; the metal-organic framework material is composed of transition metal Ni 2+ Ions and organic ligands form a three-dimensional network structure through coordination bonds or intermolecular forces, in which the organic ligand is 3,3',5,5'-biphenyltetramethylcarboxylate; the three-dimensional network structure contains two Ni with different coordination 2+ ions, every three Ni1 ions form a trinuclear cluster Ni 3 , every eight Ni2 ions form an octanuclear cluster Ni 8 , and every eight Ni 3 The cluster and the ligand form a cage with a pore size of 1.2nm, while every six Ni 8 clusters and ...

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Abstract

Provided is a metal-organic framework material for adsorbing N2O. The chemical formula of the metal-organic framework material is shown in the specification, wherein n is a natural number greater than and equal to 1, bptc is 3, 3', 5, 5'-biphenyl tetramethyl carboxylic acid ions, DMA is N, N-dimethyl acetamide, and (CH3)2NH2 is dimethylamine positive ions; a preparation method comprises the steps of adding 3, 3', 5, 5'-biphenyl tetramethyl carboxylic acid, nickel acetate, lithium hydroxide monohydrate and concentrated nitric acid to N, N-dimethyl acetamide and distilled water, and heating the mixture. The metal-organic framework material for adsorbing N2O and the preparation method thereof have the advantages that the preparation process of a product is simple, the operation is easy, better acid-base property and heat stability of the prepared metal-organic framework material are achieved, higher adsorption capacity for N2O can be achieved, and the metal-organic framework material can be used for storing N2O.

Description

technical field [0001] The invention relates to the technical field of metal organic framework materials, in particular to a 2 O-adsorbed metal-organic framework materials and methods for their preparation. Background technique [0002] Climate change is a major challenge facing the world today. Greenhouse gas emissions caused by the production and life of human society are the main cause of global warming. It is the common mission of all mankind to curb climate warming and save the home of the earth. Atmospheric CO 2 、CH 4 and N 2 O is the most important greenhouse gas, accounting for nearly 80% of the greenhouse effect. of which CO 2 It contributes the most to the enhancement of the greenhouse effect, accounting for about 60%, and is the most important greenhouse gas. followed by CH 4 , The contribution rate to the greenhouse effect accounts for about 15%. Currently N 2 O contributes about 5% to the greenhouse effect, but its warming effect is that of CO 2 296~3...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30B01D53/02C07F15/04
CPCY02C20/10Y02P20/151
Inventor 师唯张晓平程鹏
Owner NANKAI UNIV
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