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Bimetallic functionalized znco-mof catalytic material prepared by dry glue one pot method and its preparation method and application

A catalytic material and bimetallic technology, applied in catalytic reactions, chemical instruments and methods, physical/chemical process catalysts, etc., to achieve high yield, enhanced stability, and reduced usage

Active Publication Date: 2022-05-17
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there is no report on the preparation of cheap metal-organic framework materials by dry glue method and their use in olefin epoxidation

Method used

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  • Bimetallic functionalized znco-mof catalytic material prepared by dry glue one pot method and its preparation method and application
  • Bimetallic functionalized znco-mof catalytic material prepared by dry glue one pot method and its preparation method and application
  • Bimetallic functionalized znco-mof catalytic material prepared by dry glue one pot method and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) The method for preparing bimetallic functionalized ZnCo-MOF material by dry glue one-pot method comprises the following steps:

[0040] The first step: the preparation of dry glue

[0041] Molar ratio metal cobalt salt: metal zinc salt: aromatic carboxylic acid: acetic acid: water = 1:0.1:1.1:1:463, add 6mmol cobalt acetate and 6.6mmol terephthalic acid to a polytetrafluoroethylene beaker with 2.222mol water Stir at room temperature for 30 minutes, mix well, add 6 mmol of acetic acid dropwise, stir for 20 minutes evenly, add 0.6 mmol of zinc chloride and 0.556 mol of water, continue to stir for 2 hours, then evaporate the tetrafluoroethylene beaker in an oven at 80 ° C to remove the reaction liquid to obtain dry glue, which is ground to obtain a pink powder substance, and 2.0 g of water is retained in the dry glue powder (the moisture content of the dry glue powder is 28.9%).

[0042] Step 2: Crystallization

[0043] Transfer the dry rubber powder prepared in the ...

Embodiment 2

[0048] (1) The method for preparing bimetallic functionalized ZnCo-MOF material by dry glue one-pot method comprises the following steps:

[0049] The first step: the preparation of dry glue

[0050] In molar ratio metal cobalt salt: metal zinc salt: aromatic carboxylic acid: acetic acid: water=1:0.05:1.05:1:278, 6mmol cobalt nitrate and 6mmol nitroterephthalic acid are added to polytetrafluoroethylene of 1.111mol water In the beaker, stir at room temperature for 30 minutes, mix well, add 6.3mmol of acetic acid dropwise, stir for 20min evenly, add 0.3mmol of zinc acetate and 0.556mol of water, continue to stir and react for 2h, then evaporate the tetrafluoroethylene beaker in an oven at 80°C The reaction solution was dried rubber, which was ground to obtain a pink powder substance, and 4.0 g of water was retained in the dried rubber powder (the moisture content of the dried rubber powder was 57.8%).

[0051] Step 2: Crystallization Transfer the dry rubber powder prepared in t...

Embodiment 3

[0055] (1) The method for preparing bimetallic functionalized ZnCo-MOF material by dry glue one-pot method comprises the following steps:

[0056] The first step: the preparation of dry glue

[0057] In molar ratio metal cobalt salt: metal zinc salt: aromatic carboxylic acid: acetic acid: water=1:0.5:1.5:0.5:463, 6mmol cobalt chloride and 9mmol 5-hydroxyisophthalic acid are added to the polytetrafluoroethylene of 2.222mol water Stir in a vinyl fluoride beaker at room temperature for 30 minutes, mix well, add 3 mmol acetic acid dropwise, stir for 20 min evenly, add 3.0 mmol zinc nitrate and 0.556 mol water, continue stirring for 2 hours, then steam the tetrafluoroethylene beaker in an oven at 80°C Remove the reaction liquid to obtain dry glue, and obtain a pink powder substance through grinding, and retain 0g of water in the dry glue powder (the moisture content of the dry glue powder is 0%).

[0058] Step 2: Crystallization

[0059] Transfer the dry rubber powder prepared in...

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Abstract

The invention discloses a bimetallic functionalized ZnCo-MOF catalytic material prepared by a one-pot method of dry glue and its preparation method and application. The preparation method comprises the following steps: mixing metal cobalt salt, aromatic carboxylic acid, acetic acid, and metal zinc salt And water is added to the container, mixed and stirred, evaporated to dryness to obtain dry rubber, and then ground into dry rubber powder, the dry rubber powder is subjected to crystallization reaction, and finally the product is purified and dried to obtain bimetallic functionalized ZnCo‑MOF catalytic material. The bimetallic functionalized ZnCo-MOF catalytic material of the present invention is prepared by a dry glue one-pot method, which has fast reaction, simple synthesis method and high yield.

Description

technical field [0001] The invention relates to the technical field of inorganic non-metallic catalytic materials, in particular to a bimetallic functionalized ZnCo-MOF catalytic material prepared by a dry glue one-pot method, a preparation method and application thereof. Background technique [0002] Metal-organic framework (MOF) is a kind of network structure obtained by self-assembling metal ions or metal clusters as secondary building units (SBU) and organic ligands through coordination bonds. It is a class developed in the past 20 years. New inorganic-organic hybrid porous materials (Z.Y.Li, C.J.Cramer and O.K.Farha. Sintering-Resistant Single-SiteNickel Catalyst Supported by Metal-Organic Framework.J.Am.Chem.Soc.2016,138,1977-1982.). The regular and ordered micropores in MOFs have brought about their potential applications in gas adsorption and separation, catalysis, etc., which has attracted extensive attention. In general, the secondary building blocks in MOFs only ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22C07D303/04C07D301/06
CPCB01J31/1691B01J31/2239B01J37/0018C07D303/04C07D301/06B01J2531/26B01J2531/845B01J2231/72
Inventor 鲁新环夏清华张海福
Owner HUBEI UNIV
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