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Preparation method of high-temperature proton exchange membrane material and application of material

A proton exchange membrane, high temperature technology, applied in the field of clean energy, can solve the problem that the loading rate cannot meet the design accuracy and limitations of materials, and achieve the effects of superior electrical conductivity, low cost and strong controllability

Inactive Publication Date: 2017-04-05
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. At the same time, the guest molecules with strong acid properties will greatly limit the choice of MOF materials.

Method used

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  • Preparation method of high-temperature proton exchange membrane material and application of material
  • Preparation method of high-temperature proton exchange membrane material and application of material
  • Preparation method of high-temperature proton exchange membrane material and application of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: the preparation of the high temperature proton exchange membrane material (BIL25) of 25% loading capacity

[0032]1) Weigh 0.166g (1.0mmol) of terephthalic acid, 0.400g (1.0mmol) of chromium nitrate nonahydrate as a solid in the reactor lining of 15mL polytetrafluoroethylene, and then add a concentration of 40wt% by weight to it. After 0.05mL of HF solution and 7mL of deionized water, the reactor was filled, and the reaction kettle was placed in a blast drying oven heated to 220°C, and reacted for 8h. After the reaction was over, the reactor was taken out from the drying oven and cooled to room temperature naturally. The obtained dark green reaction mixture was transferred into a 10mL centrifuge tube, and centrifuged for 5min at a speed of 5500rmp / min. After centrifugation, the supernatant was discarded, and the obtained dark green solid was washed 3 to 5 times with methanol to wash away unreacted reactants and other impurities in the reaction mixture.

...

Embodiment 2

[0040] Embodiment 2: the preparation of the high temperature proton exchange membrane material (BIL50) of 50% loading capacity

[0041] Except for using 76 μl of ZIL / HTFSA ionic liquid, follow the same steps in Example 1 to prepare a 50% by weight loaded high-temperature proton exchange membrane material, that is, a composite material of ZIL / HTFSA and MIL-101.

[0042] figure 1 The BIL50 curve in the middle is the X-ray powder diffraction pattern of the high-temperature proton exchange membrane material obtained according to this embodiment.

Embodiment 3

[0043] Embodiment 3: the preparation of the high temperature proton exchange membrane material (BIL100) of 100% loading capacity

[0044] Except for using 152 μl of ZIL / HTFSA ionic liquid, follow the same steps in Example 1 to prepare a 50% by weight loaded high-temperature proton exchange membrane material, that is, a composite material of ZIL / HTFSA and MIL-101.

[0045] figure 1 The BIL100 curve in the middle is the X-ray powder diffraction pattern of the high-temperature proton exchange membrane material obtained according to this embodiment.

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Abstract

The invention discloses a preparation method of a high-temperature proton exchange membrane material and application of the material. Dibasic ionic liquid is packaged in channels of a metal-organic framework, and accordingly the fuel battery proton exchange membrane material is synthesized. The preparation method is high in controllability, the sizes of the channels of the metal-organic framework are measured by measuring gas adsorption, a certain amount of dibasic ionic liquid is dropwise added, and the high-temperature proton exchange membrane material in a fuel battery loading the dibasic ionic liquid in an ideal proportion is obtained. The high-temperature proton exchange membrane material in the fuel battery is prepared by filling the metal-organic framework with the dibasic ionic liquid, cost is low, circulation performance is good, and electric conductivity is excellent under waterless and medium-and-high-temperature conditions. The obtained composite material is safe and harmless to the environment, and meets the novel material application requirement in clean energy and environment sustainable development.

Description

technical field [0001] The present invention relates to the field of clean energy, in particular to a method for preparing a high-temperature proton exchange membrane material in a fuel cell, and more specifically to a process for synthesizing a proton exchange membrane material for a fuel cell by encapsulating a binary ionic liquid in a channel of a metal-organic framework The method also relates to the application of the prepared high-temperature proton exchange membrane material in clean energy. Background technique [0002] At present, organometallic 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 MOF composite materials have attr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1072H01M8/1058
CPCH01M8/1058H01M8/1072Y02E60/50
Inventor 万重庆陈辉孙晓莉
Owner CAPITAL NORMAL UNIVERSITY
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