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Porous rare-earth metal-organic framework material, preparation method and application thereof in natural gas storage

A rare earth metal and organic framework technology, which is applied in the fields of material chemistry, organic chemistry, and inorganic chemistry, can solve the problems of not meeting technical requirements and the need for development of carrier materials, and achieve the effect of good storage performance and high thermal stability.

Active Publication Date: 2011-01-05
深圳市普迈达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, none of these materials have met the technical requirements of the U.S. Department of Energy for vehicle-mounted energy gas storage, and more superior carrier materials still need to be developed

Method used

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  • Porous rare-earth metal-organic framework material, preparation method and application thereof in natural gas storage
  • Porous rare-earth metal-organic framework material, preparation method and application thereof in natural gas storage
  • Porous rare-earth metal-organic framework material, preparation method and application thereof in natural gas storage

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preparation example Construction

[0044] The porous rare-earth metal-organic framework can be synthesized by a variety of methods, including hydrothermal method, solvothermal method, and medium-temperature solvent evaporation method. The medium-temperature solvent evaporation method is the most economical and feasible method. The specific steps are as follows:

[0045] Step 1, dissolving the nitrate or halide of the rare earth metal and the organic ligand BTC with a molar ratio of 0.2 to 5:1 in a mixed solvent composed of an organic solvent and water, and the molar ratio of the organic solvent to water is 5 to 10: 1. The concentration of the organic ligand is 1 x 10 -2 ~10mol / L;

[0046] Step 2, reacting the above solution at a temperature of 4°C to 180°C for 1 to 72 hours;

[0047] Step 3, wash with ethanol several times, and dry at 20°C to 150°C to obtain colorless crystals of rare earth metal-organic framework materials, whose general formula is RE(BTC)H 2 O, the yield calculated by organic ligand is 30~8...

Embodiment 1

[0057] (1) In a glass beaker, put 10g of Y(NO 3 ) 3 ·6H 2 O, 5g H 3 Dissolve BTC in a mixed solvent of 50mL DMF (N,N'-dimethylformamide) and 10mL water, stir for 1 hour to dissolve completely, and seal with plastic wrap; place the above solution in an oven at 85°C for 12 hours Afterwards, filter (medium-speed qualitative filter paper, glass funnel normal pressure filter), wash 3 times with 20ml ethanol, dry at 60 ℃, obtain colorless microcrystal, yield rate is 73% (calculated by H3BTC). The cell parameters are 10.2908, 10.2908, 17.4730, 90.00, 90.00, 90.00;

[0058] (2) Soak the microcrystalline product obtained in step (1) in 50 mL of methanol for two days, replace the methanol once a day, then filter, and dry at 60° C. The obtained product was calcined at 300° C. for 4 hours. like figure 2 As shown, from bottom to top, the XRD spectrum of the rare earth metal organic framework material simulated by the Materials Studio 4.0 software from the single crystal structure da...

Embodiment 2

[0062] The mixed solution in step (1) of Example 1 was transferred to a stainless steel reaction kettle, the temperature of the oven was changed to 180° C., and other conditions were kept constant to obtain the same material as described in Example 1.

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Abstract

The invention belongs to the crossing field of inorganic chemistry, organic chemistry and material chemistry, and specifically relates to an isomorphic porous rare-earth metal-organic framework material, a preparation method and application thereof in natural gas storage, particularly methane storage. In the structural formula of the rare-earth metal-organic framework material as shown below, RE3+ is one of Sc3+, Y3+, Yb3+ or Lu3+, and X is one of H, NH2, F, Cl, Br or I. The material has high thermal stability, excellent porous channel structure and good natural gas storage property, thus being capable of being widely applied to the automobile energy field.

Description

technical field [0001] The invention belongs to the interdisciplinary fields of inorganic chemistry, organic chemistry and material chemistry, and specifically relates to a class of isomorphic rare earth metal organic framework materials, a preparation method thereof and its application in natural gas storage, especially the application of methane storage. Background technique [0002] As we all know, the energy crisis has become a problem that all mankind must face and pay attention to, and the solution to the energy problem is imminent. People are constantly looking for suitable fuels to replace traditional gasoline and diesel. Solar energy and natural gas have been used in large quantities, but due to the particularity of vehicle energy sources, no suitable substitutes have been found. The U.S. Department of Energy stipulates that this energy cannot be petroleum energy, and it is safe and environmentally friendly. Natural gas meets this requirement very well, and is cons...

Claims

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Application Information

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IPC IPC(8): C07C63/307C07C229/76C07C63/68C07C51/347C07C227/16B01J20/22F17C11/00
Inventor 朱广山裘式纶李忠月
Owner 深圳市普迈达科技有限公司
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