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Methane storing inorganic and organic hybridized microporous materials and producing method

A technology of organic hybridization and storage materials, applied in chemical instruments and methods, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems of insufficient air stability, low capacity, complex synthesis process, etc., and achieve improved storage capacity , good stability and high gas storage capacity

Inactive Publication Date: 2004-11-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon materials generally contain a certain proportion of mesopores and macropores, and the ability of mesopores and macropores to store methane is lower than that of nanoscale micropores.
As a result, some microporous materials have been developed abroad for methane storage, such as [Cu(SiF 6 )(4,4'-bipy) 2 ](4,4'-bipy is 4,4'-bipyridine) has nano-scale micropores and has a good ability to store methane (Angew.Chem.Int.Ed., 2000, 39:2082), but this The air stability of the material is not enough; and a series of microporous materials made by K. Seki and others using terephthalic acid, heterocyclic amines and transition metals have good stability and high methane storage capacity, but their synthesis The process is extremely complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] In the tubular container, put 6ml dimethylformamide (containing 0.05mol / l cobalt chloride hexahydrate and 0.05mol / l terephthalic acid) in the lower part, slowly put 4ml dimethylformamide and 4ml methanol in the middle layer Mix the solvent, put 6ml of triethylenediamine containing 0.1mol / l methanol in the top part, and leave it at room temperature for 30-60 hours to precipitate dark blue crystals.

[0015] The obtaining of material of the present invention: the crystal that obtains in above-mentioned embodiment has chemical formula and is:

[0016] CoC 17 h 27 N 3 o 7.5 , determined experimentally as: C, 45.21%; H, 5.93%; N, 9.49%; calculated as: C, 45.14%; H, 6.02%; N, 9.29%. This crystal is unstable in air and will gradually turn purple. right

[0017] The thermogravimetric analysis of this crystal found that all dimethylformamide and water molecules in the crystal could be removed at 180°C, and no change occurred until 370°C. Various methods were used to charac...

Embodiment 2

[0019] In the tubular container, put 1.33g terephthalic acid and 1.93g cobalt chloride hexahydrate dissolved in 160ml dimethylformamide in the lower layer, put 120ml dimethylformamide and methanol (volume ratio 1:1) in the middle layer, On the upper layer, 1.8 g of triethylenediamine dissolved in 160 ml of methanol was placed. Stand at room temperature for 30-60 hours to obtain dark blue crystals. Through the same treatment as in Example 1, the material CoC of the present invention can be obtained 11 h 10 NO 4 .

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Abstract

The hybrid methane-storing organic-inorganic porous material has the chemical expression of CoC11H10NO4, and consists of skeleton support element in 21.2 wt%, anionic bridging ligand 58.8 wt% and neutral bridging ligand 20.1 wt%. It is prepared via multi-layer solution diffusion and mixing process. The material of the present invention has relatively high methane-storing capacity.

Description

technical field [0001] The invention relates to the manufacture of methane storage materials, in particular to the field of methane storage inorganic-organic hybrid materials. technical background [0002] The purpose of using gas storage materials is to increase the storage capacity of gas under the same pressure. For example, steel cylinders can be used to store high-pressure gas, but the pressure is too high, which poses a serious hidden danger to safe use. Gas storage is carried out with the help of porous materials. The storage capacity can significantly reduce the gas storage pressure to achieve the purpose of safe and efficient use. Methane or natural gas storage is an important topic in current energy storage technology, and the existing relatively good energy storage materials are carbon materials (such as activated carbon, etc.). However, carbon materials generally contain a certain proportion of mesopores and macropores, and the methan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/00F17C11/00
Inventor 朱龙观
Owner ZHEJIANG UNIV
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