Method for synthesizing metal-organic framework material Co-MOF-71

A metal-organic framework, co-mof-71 technology, applied in the field of synthesis of organic framework materials, can solve the problems of few reports and achieve the effect of high selectivity, strong operability, and highly dispersed metal sites

Inactive Publication Date: 2017-08-29
NINGXIA UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are few reports on the preparation methods and applications of Co-MOF-71 materials

Method used

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  • Method for synthesizing metal-organic framework material Co-MOF-71

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Mix the raw materials cobalt nitrate, terephthalic acid, solvent N,N-dimethylformamide, and absolute ethanol in a molar ratio of 1:1.5:95.5:31.3, place it in a Shrek tube, seal it and raise the temperature to 120°C to keep 10h, then filtered while hot, washed three times with anhydrous methanol solution with the same volume as the solvent in the ingredients, and finally dried in air at 100°C for 6h to obtain Co-MOF-71 metal organic framework material. The XRD pattern of the sample is shown as figure 1 As shown in (1), the specific surface area, micropore pore volume, and cobalt mass percentage are listed in Table 1, respectively.

Embodiment 2

[0020] Mix the raw materials cobalt nitrate, terephthalic acid, solvent N,N-dimethylformamide, and absolute ethanol in a molar ratio of 1:1.5:191.0:62.6, place it in a Shrek tube, seal it and raise the temperature to 110°C to keep 15h, then filtered while hot, washed three times with anhydrous methanol solution with the same volume as the solvent in the ingredients, and finally dried in air at 80°C for 10h to obtain Co-MOF-71 metal organic framework material. The XRD pattern of the sample is shown as figure 1 As shown in (1), the specific surface area, micropore pore volume, and cobalt mass percentage are listed in Table 1, respectively.

Embodiment 3

[0022] Mix the raw materials cobalt nitrate, terephthalic acid, solvent N,N-dimethylformamide, and absolute ethanol in a molar ratio of 1:1.5:191.0:31.3, place it in a Shrek tube, seal it and raise the temperature to 110°C to keep 15h, then filtered while hot, washed three times with anhydrous methanol solution with the same volume as the solvent in the ingredients, and finally dried in air at 100°C for 6h to obtain Co-MOF-71 metal organic framework material. The XRD pattern of the sample is shown as figure 1 As shown in (1), the specific surface area, micropore pore volume, and cobalt mass percentage are listed in Table 1, respectively.

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Abstract

The invention relates to successful preparation of a Co-MOF-71 nano-material. According to the invention, preparation process conditions are optimized; the prepared Co-MOF-71 nano-material is uniform in crystal grain size and has good stability; and when Co utilizes the acidic catalysis reaction of MOF framework metal ions, the metal ions are active sites and the supporting points of a framework, and metal ions undergo coordination in the process of catalysis. The prepared Co-MOF-71 material has high metal content and completely exposed metal sites; more Lewis acid site Co-MOF-71 materials can be provided; and the material is beneficial for total activation of reactant molecules and has good catalytic activity.

Description

technical field [0001] The invention relates to a synthesis method of an organic framework material. Background technique [0002] Metal-Organic Frameworks (MOF for short) is a new type of porous network structure material formed by the coordination of metal ions and organic ligands. MOF has the following unique and potential advantages: ① Large specific surface area; ② No dead volume, large porosity; ③ Strong and flexible framework; ④ Compared with existing heterogeneous catalysts, the metal sites of MOF are completely exposed; ⑤ Pores have Regularity, so the transfer rate of guest molecules is high. Based on the above advantages, MOFs have been used in gas adsorption, separation and storage, catalysis, drug delivery, optics, electronics, sensing and nanoreactors, etc. [0003] As a heterogeneous catalyst, MOF has attracted more and more researchers' attention in recent years. This is mainly due to the flexible and adjustable MOF framework structure, which can generate a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00B01J31/22B01J35/10C10G2/00
CPCB01J31/1691B01J35/1009B01J35/1047B01J2531/0213B01J2531/845C08G83/008C10G2/332
Inventor 裴彦鹏郭庆杰胡修德
Owner NINGXIA UNIVERSITY
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