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Load type stephanoporate metal organic compound hydrogen storing material

A technology of organic compounds and porous metals, applied in hydrogen separation, other chemical processes, chemical instruments and methods, etc., can solve problems such as unsatisfactory and complicated preparation methods, and achieve good hydrogen absorption and desorption, simple preparation process, and simple synthesis.

Active Publication Date: 2008-09-24
KAILING CHEM ZHANGJIAGANG CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] However, most of the hydrogen storage data of porous metal-organic compounds are measured at extremely low temperatures (77K), and the hydrogen storage effect at room temperature is not satisfactory. Research on online hydrogen storage has achieved certain results (Chen Guorong, Sun Dalin, etc., Nano-organic metal complex hydrogen storage materials and preparation methods, application number: 200310109081), but the preparation method is relatively complicated; relatively good storage at room temperature reported abroad The hydrogen result is under the pressure of 65bar, the mass hydrogen storage capacity is 0.28% (B.Panella, M.Hirscher, H.Putter and U.Muller, Adv Funct Mater, 2006, 16, 520), from the U.S. Department of Energy on hydrogen storage materials The commercialization index, that is, the mass density of 6.5% is still far away

Method used

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  • Load type stephanoporate metal organic compound hydrogen storing material
  • Load type stephanoporate metal organic compound hydrogen storing material
  • Load type stephanoporate metal organic compound hydrogen storing material

Examples

Experimental program
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Effect test

Embodiment 1

[0027] 1) References (G.Ferey, C.Mellot-Draznieks, C.Serre, F.Millange, J.Dutour, S.Surble and I.Margiolaki, Science, 2005, 309, 2040.) Synthesis of porous metal organic compound MIL -101 (Cr 3 F(H 2 O) 2 O[(O 2 C)-C 6 h 4 -(CO 2 )] 3 ·nH 2 O, n~25): Weigh 4.0g Cr(NO 3 ) 2 Dissolve in 50ml deionized water, after fully dissolving, weigh 1.6613g terephthalic acid and mix it with the solution, then add 10 drops of HF solution dropwise to the mixed solution, then move the mixed solution into a 100ml stuffy tank type stainless steel autoclave (poly Tetrafluoroethylene lining), crystallized in a synthetic oven at 220°C for 10h, cooled to room temperature, filtered and washed the product, dried at 100°C, and dissolved the dried product in 50ml N,N-dimethylformamide , filtered and washed, and dried overnight at 100°C to obtain the target product MIL-101.

[0028] 2) Modified MIL-101 by equal volume impregnation method, weighed 0.1g NiCl 2 , dissolved in 1.2ml deionized wat...

Embodiment 2

[0035]1) References (T. Loiseau, C. Serre, C. Huguenard, G. Fink, F. Taulelle, M. Henry, T. Bataille and G. Ferey, Chem-eur J, 2004, 10, 1373-1382. ) to synthesize porous metal-organic compound MIL-53(Al(OH)[O 2 C-C 6 h 4 -CO 2 ][HO 2 C-C 6 h 4 -CO 2 ] 0.70 ): Weigh 15.6g Al(NO 3 ) 3 Dissolve in 60ml of deionized water, after fully dissolving, weigh 3.456g of terephthalic acid and mix it with the solution, then transfer the mixed solution into a 100ml stuffy stainless steel autoclave (lined with polytetrafluoroethylene), and put it in a synthetic oven at 220 Crystallize at ℃ for 3 days, after cooling to room temperature, filter and wash the product, and dry at 100°C, dissolve the dried product in 50ml of N,N-dimethylformamide, filter and wash, and dry at 100°C overnight. Obtain target product MIL-53.

[0036] 2) Modified MIL-53 by excessive impregnation method, weighed 0.2g NiCl 2 ·6H 2 O, dissolved in 10ml deionized water, weighed 1.0g MIL-53, soaked in the aqueo...

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Abstract

The invention relates to a hydrogen storage material, in particular to a load porous metal organic hydrogen storage material, being a load metal-porous metal organic compound composite material. The hydrogen storage material is made according to the following steps: (1) inorganic salt and organic acid are used as reagents, water or an organic solvent is adopted, a porous metal organic compound is prepared by a hydro-thermal synthesis method or a solvent-thermal synthesis method; (2) the porous material is loaded by soluble metal salt; the load metal-porous metal organic compound composite material is made by adopting a liquid phase method or a hydrogen reducing method; the loading amount of the metal is 2 to 20 percent of the mass of the composite material. The hydrogen storage material has simple preparation process and low cost; the chemical modification of the organic frame material of the porous metal can effectively improve the hydrogen absorbing and releasing performance of the material under a moderate condition, thereby providing a novel hydrogen storage material which realizes good hydrogen absorbing and releasing under the moderate condition.

Description

technical field [0001] The invention relates to a hydrogen storage material, in particular to a loaded porous metal organic framework hydrogen storage material that can realize good hydrogen absorption and desorption under mild conditions. Background technique [0002] Hydrogen storage technology is a key link in the development and application of hydrogen energy. The research on hydrogen storage materials began in the 1960s. In decades, binary hydrogen storage alloys, multi-metal alloys, and new types of activated carbon materials, carbon nanotubes, and porous metal-organic compounds have been developed. Hydrogen storage materials with different properties . [0003] Porous metal-organic compounds are self-assembled by transition metals and organic ligands to form one-dimensional, two-dimensional or three-dimensional coordination polymers with infinite network structures in space. Due to the advantages of both organic materials and inorganic materials, it has unique advan...

Claims

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Application Information

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IPC IPC(8): B01J20/22C01B3/50
Inventor 孙立贤刘颖雅徐芬邱树君褚海亮杨黎妮曹朝霞
Owner KAILING CHEM ZHANGJIAGANG CO LTD
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