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Application of benzodipyrrole organic molecules

A technology of benzodipyrrole and organic molecules, which is applied in the field of hydrogen storage of organic aromatic hydrocarbon molecules, can solve the problems of high reaction temperature, low material stability, and low hydrogen storage capacity, and achieve short reaction time, stable physical and chemical properties, The effect of high reaction conversion rate

Pending Publication Date: 2021-08-10
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing organic hydrogen storage materials mainly include some common unsaturated aromatic hydrocarbons such as indoles, carbazoles and benzyltoluenes. However, these organic hydrogen storage materials still have low hydrogen storage capacity, high reaction temperature, material Low stability, high toxicity and other issues

Method used

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  • Application of benzodipyrrole organic molecules
  • Application of benzodipyrrole organic molecules
  • Application of benzodipyrrole organic molecules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1. The organic molecular material K12 in this embodiment is a kind of molecule in the molecular structure general formula M2 provided by the present invention, and the density is 1.366±0.06g / cm 3 , the hydrogen storage capacity is 6.02wt%, and the structure is as follows:

[0056]

[0057] 2. The synthesis route of the organic molecular material K12 is as follows:

[0058]

[0059] Specifically:

[0060] (1) Put 54g of K5 into 250ml of 18% hydrochloric acid, cool to -5°C and keep; dissolve 23.1g of sodium nitrate in 150ml of water, and add dropwise into the hydrochloric acid solution that is dissolved with K5. Keep the temperature of the hydrochloric acid solution that is dissolved with K5 below 0°C, and keep it at 0°C for 0.5-1h after the dropwise addition to obtain the first reaction solution; dissolve 180g of tin chloride in 250ml of 18% hydrochloric acid and cool to -15°C, and add the first reaction solution dropwise into the hydrochloric acid solution disso...

Embodiment 2

[0073] 1. The organic molecular material K12 selected in this embodiment is a kind of molecule in the molecular structure general formula M2 provided in the above-mentioned embodiments of the present invention, and its density is 1.366±0.06g / cm 3 , the hydrogen storage capacity is 6.02wt%, and its structure is the same as that of K12 provided in Example 1 above, so it will not be repeated here.

[0074] 2. The synthesis route of the organic molecular material K12 is the same as the synthesis route of the above-mentioned Example 1, and will not be repeated here.

[0075] The hydrogen nuclear magnetic resonance spectrum of the benzodipyrrole organic molecule K12 synthesized by the embodiment of the present invention is respectively the same as that in Example 1 figure 2 Similarly, in this embodiment, it will not be shown repeatedly.

[0076] 3. When the organic molecular material K12 is applied to hydrogen storage, the reversible reaction process of adding and dehydrogenating ...

Embodiment 3

[0081] 1. The organic molecular material K13 selected in this embodiment is a kind of molecule in the molecular structure general formula M3 provided in the above-mentioned embodiments of the present invention, and its density is 1.366±0.06g / cm 3 , the hydrogen storage capacity is 6.02wt%, and the structure is as follows:

[0082]

[0083] 2. The synthetic route of the organic molecular material K13 is as described in the synthetic route of K12 in Example 3, and will not be repeated in this embodiment.

[0084] Since the molecule expressed by K13 is a known compound in the art, benzobipyrrole, in this example, only hydrogen nuclear magnetic resonance spectrum was done for K13, to illustrate that the K13 synthesized in this example is benzobipyrrole .

[0085] refer to image 3 The hydrogen nuclear magnetic resonance spectrum of the benzobipyrrole organic molecule K13 synthesized in Example 3 of the present invention is shown. H NMR spectrum of K13 1 H-NMR (CD 3 SOCD 3...

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Abstract

The invention provides an application of benzodipyrrole organic molecules. According to the application, the benzodipyrrole organic molecules serve as a hydrogen storage material, and hydrogen is subjected to hydrogenation and / or dehydrogenation. In the application, a complete cycle hydrogen storage and release process of the organic molecular material is realized, no side reaction is generated, and compared with the reported carbazole, indole and benzyl benzene organic hydrogen storage materials, the hydrogen storage and desorption process of the benzodipyrrole organic molecules has the advantages that the hydrogenation / dehydrogenation reaction temperature is lower, the molecular performance is more stable, and the reaction efficiency is higher, and thus the benzodipyrrole organic molecules can be applied to the field of hydrogen storage as a novel organic hydrogen storage material.

Description

technical field [0001] The invention relates to the technical field of hydrogen storage of organic aromatic hydrocarbon molecules, and mainly relates to the application of a benzobipyrrole organic molecule. Background technique [0002] The shortage of traditional fossil energy and the deterioration of the natural environment are two accompanying problems that have plagued human society in recent years. Human beings are trying to find a sustainable and environmentally friendly energy source to reduce or even replace fossil fuels such as coal and oil in national production and life. share. Hydrogen has large reserves, high calorific value, and is environmentally friendly. It only produces water after combustion. It has been studied in many fields, and has gradually become a new type of energy with great potential. [0003] Researchers found that hydrogen storage and utilization can be realized through the reversible reaction between unsaturated organic molecules and hydrogen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/00
CPCC01B3/0015Y02E60/32
Inventor 姜召龚翔方涛
Owner XI AN JIAOTONG UNIV