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Preparation of solid proton conducting material having wide working temperature range

A wide operating temperature, proton conduction technology, used in circuits, fuel cells, electrical components, etc., can solve the problem of the load rate not reaching the accuracy of material design, limitations, etc., to achieve superior electrical conductivity, low cost, and good cycle performance. Effect

Inactive Publication Date: 2018-11-20
CAPITAL NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in these methods, the random and uncontrollable loading rate of functional guest molecules cannot reach the accuracy of material design, and at the same time, the guest molecules with strong acid properties will greatly limit the choice of MOFs materials.

Method used

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  • Preparation of solid proton conducting material having wide working temperature range
  • Preparation of solid proton conducting material having wide working temperature range
  • Preparation of solid proton conducting material having wide working temperature range

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Embodiment 1

[0040] Example 1: Preparation of metal organic framework material functionalized with ionic liquid.

[0041] 1): Precursor P for the synthesis of amphoteric functionalized ligands 1

[0042]

[0043] Add 2-methylbiphenyl-4,4'-dicarboxylic acid dimethyl ester (2.86g, 10mmol) and N-bromosuccinimide (1.936g, 11mmol) into the reactor, and then add 45ml weight percent concentration 5% BPO in CCl 4 solution, refluxed for 3 hours. After the reaction, the mixed solution in the flask was directly filtered to remove insoluble matter, and the filtrate was concentrated under reduced pressure to obtain light yellow semi-solid P 1 . The solid was dried overnight under high vacuum in 86% yield.

[0044] 2): Precursor P for the synthesis of amphoteric functionalized ligands 2

[0045]

[0046] Will P 1 (3.35g, 10mmol) was dissolved in 50ml DMF, and added P 1 4 times the molar amount of imidazole, the mixture was continuously stirred at room temperature for 20 hours, and then sa...

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Abstract

The invention relates to a preparation method of a solid proton conducting material having a wide working temperature range and the solid proton conducting material (a metal organic framework material) having the wide working temperature range prepared by the method. The method comprises the following steps: firstly, synthesizing a functional ligand having an amphoteric group; secondly, generatingreaction between the functional ligand and ZrCl4 in a high-pressure kettle to obtain a metal organic framework material MOF-MIMS; finally, adding protonic acid for powerful grinding to obtain ionic liquid-modified metal organic framework material. The preparation method disclosed by the invention is simple and high in controllability; the protonic acid is quantitatively dropwise added by measuring the size of a pore of a metal organic framework by measuring gas adsorption, so that a fuel cell proton exchange membrane material loaded with the proton acid in an ideal proportion is obtained. Bythe use of the ionic liquid-modified metal organic framework to prepare the fuel cell proton exchange membrane material, the cost is low, and the cycle performance is high. Furthermore, the material is excellent in conductivity without water within a relatively wide temperature range of -40 to 150 DEG C.

Description

technical field [0001] The present invention relates to the field of clean energy, in particular to a preparation method of a solid proton conductive material (metal-organic framework material functionalized with ionic liquid) with a wide operating temperature range, and the metal-organic framework material prepared by the method and its application , and more specifically relates to the application of metal-organic framework materials functionalized with ionic liquids in proton exchange membrane materials for fuel cells. Background technique [0002] At present, metal organic frameworks (MOFs) have been widely studied due to their ultra-high specific surface area and porosity, and they can be combined with various chemically active materials to prepare multifunctional composites. This has greatly expanded the application of porous materials in catalysis, conduction, separation, and electrical conduction. Therefore, the development and exploration of new fields of MOFs compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00H01M8/102H01M8/1069
CPCC08G83/008H01M8/102H01M8/1069Y02E60/50
Inventor 万重庆陈辉
Owner CAPITAL NORMAL UNIVERSITY
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