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An ionic hydrogen bond organic framework material and its preparation method and application

An organic framework and ionic technology, applied in the field of ionic hydrogen bond organic framework materials and their preparation, achieves the effects of convenient operation, simple preparation process and high thermal stability

Active Publication Date: 2022-02-08
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an ionic hydrogen-bonded organic framework material and its preparation method and application, which solves the stability problem of the existing hydrogen-bonded organic framework material

Method used

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  • An ionic hydrogen bond organic framework material and its preparation method and application
  • An ionic hydrogen bond organic framework material and its preparation method and application
  • An ionic hydrogen bond organic framework material and its preparation method and application

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preparation example Construction

[0029] The invention also discloses a preparation method of the hydrogen-bonded organic framework material, which includes the following steps:

[0030] 1) Add TPE-SO 3 H and DBD are dissolved in a mixed solution of water and DMF according to a molar ratio of 1:1-2 to obtain a reaction liquid; wherein, the molar ratio of water and DMF is 1:1-2;

[0031] 2) The reaction solution obtained in step 2) was left to stand at room temperature to obtain yellow blocky crystals, which were dried naturally to obtain an ionic hydrogen-bonded organic framework material.

Embodiment 1

[0034] The invention discloses a preparation method of an ionic hydrogen bond organic framework material, which comprises the following steps:

[0035] 1) Add 1,1,2,2-tetraphenylethylene into concentrated sulfuric acid, react at 115°C for four hours, then quench with cold water, then add ethyl acetate, stir and filter, wash, filter and dry , get TPE-SO 3 H ligand powder;

[0036] 2) dissolving the powder obtained in step 1) and DBD in a mixed solution of water and DMF at a molar ratio of 1:1 to obtain a reaction solution; wherein the molar ratio of water to DMF is 1:1;

[0037] 3) The reaction solution obtained in step 2) was left to stand at room temperature to obtain yellow blocky crystals, which were naturally dried to obtain an ionic hydrogen-bonded organic framework material.

[0038] The yield of the hydrogen-bonded organic framework material obtained in this example was 65%.

Embodiment 2

[0040] The invention discloses a preparation method of an ionic hydrogen bond organic framework material, which comprises the following steps:

[0041]1) Add 1,1,2,2-tetraphenylethylene into concentrated sulfuric acid, react at 115°C for four hours, then quench with cold water, then add ethyl acetate, stir and filter, wash, filter and dry , get TPE-SO 3 H ligand powder;

[0042] 2) dissolving the powder obtained in step 1) and DBD in a mixed solution of water and DMF according to a molar ratio of 1:2 to obtain a reaction solution; wherein the molar ratio of water to DMF is 1:1;

[0043] 3) The reaction solution obtained in step 2) was left to stand at room temperature to obtain yellow blocky crystals, which were naturally dried to obtain an ionic hydrogen-bonded organic framework material.

[0044] The yield of the ionic hydrogen-bonded organic framework material obtained in this example was 80%.

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Abstract

The invention belongs to the field of preparation of ionic hydrogen-bonded organic framework materials, and specifically discloses an ionic hydrogen-bonded organic framework material with proton conductivity, and its chemical formula is: {TPE‑SO 3 H·2(DBD)·2(DMF)·4(H 2 O)} n , where n is a positive integer, TPE‑SO 3 H is 1,1,2,2-tetrasulfonic acid phenylethylene, DBD is (C 5 NH 4 NH 2 ) 2 2+ , DMF is N,N'-dimethylformamide. The structural unit belongs to the triclinic crystal system, the space group is P-1, and the molecular formula is C 52 h 62 N 10 o 18 S 4 , unit cell parameters: α=102.789°, β=99.968°, γ=112.169°, each repeating unit contains four water molecules and two DMF molecules, two DBD molecules and one TPE‑SO 3 H molecule, amino group on DBD molecule and TPE‑SO 3 The sulfonate group on the H molecule forms a one-dimensional hydrogen bond network with the water molecule. The material has good thermal stability and good performance for proton transport. The invention discloses a preparation method thereof, the synthetic raw materials are easy to obtain, and the preparation process is simple. The ionic hydrogen-bond organic framework material of the invention can be used as a proton-conducting material and has good application prospects.

Description

technical field [0001] The invention belongs to the field of preparation of hydrogen-bonded organic framework materials, and in particular relates to an ionic hydrogen-bonded organic framework material and its preparation method and application. Background technique [0002] Since entering the 21st century, with the rapid development of the world and further urbanization, our demand for energy is increasing, and it is imminent to find renewable clean energy. Among many new energy sources, proton exchange membrane fuel cells are less polluting to the environment and can directly convert fuel into electricity without burning, which can effectively promote the sustainable development of energy and avoid the limitations of fossil fuels. Proton exchange membrane fuel cells have the advantages of high efficiency and energy saving, fast start-up, wide variety of fuels, and long service life. Proton exchange membranes are mainly Nafion series perfluorosulfonic acid membranes produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00H01M8/1032
CPCC08G83/008H01M8/1032Y02E60/50
Inventor 曹丽慧杨妍徐小倩白向田赵芳
Owner SHAANXI UNIV OF SCI & TECH
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