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Preparation method of ionic hypercrosslinked porous organic polymer supported cobalt catalyst

A technology of ultra-high cross-linking and cobalt catalysts, which is applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, organic chemistry, etc., and can solve problems such as increased energy consumption and excessive emissions of production costs. Achieve the effects of improving adsorption capacity, enhancing interaction, and simple preparation process

Pending Publication Date: 2022-06-28
QIQIHAR UNIVERSITY
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Problems solved by technology

[0003] Several types of porous materials have been explored, including zeolites, porous carbons, metal-organic frameworks (MOFs), and microporous organic polymers (MOPs). 2 Adsorption is carried out, and the captured CO is captured by the supported catalytic sites 2 carry out catalytic cycloaddition reactions, but most of the existing organic porous catalysts only work at high temperature and high CO 2 It shows excellent catalytic performance under pressure conditions, and most of them need to add co-catalysts such as tetrabutylammonium chloride for reaction, which increases energy consumption, production cost and CO 2 excess emissions of

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  • Preparation method of ionic hypercrosslinked porous organic polymer supported cobalt catalyst
  • Preparation method of ionic hypercrosslinked porous organic polymer supported cobalt catalyst
  • Preparation method of ionic hypercrosslinked porous organic polymer supported cobalt catalyst

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preparation example Construction

[0029] Provided in the present invention is a preparation method of an ionic ultra-highly cross-linked porous organic polymer-supported cobalt catalyst, specifically the preparation method comprises:

[0030] S1. Under nitrogen protection, tetraphenylporphyrin, dibromo-p-xylene and N-methylimidazole were dissolved in 1,2-dichloroethane solvent to obtain a mixed solution A;

[0031] Adding aluminum chloride to the mixed solution A, followed by stirring in an oil bath, quenching, rinsing, purification and drying to obtain the intermediate product B;

[0032] S2. Dissolving cobalt acetate in deionized water to obtain solution C;

[0033] Add an acetonitrile solution containing the intermediate product B to the solution C, then stir at room temperature, centrifuge, wash and dry to obtain the target product D; the target product D is an ionic ultra-highly cross-linked porous organic polymer loaded with a cobalt catalyst.

Embodiment S1

[0034] Preferably, for the steps disclosed in the above-mentioned preparation method, the following example S1. Preparation of intermediate product B is provided in the present invention

[0035] Under nitrogen protection, 307.5 mg tetraphenylporphyrin, 316.8 mg dibromo-p-xylene and 39.6 μL N-methylimidazole were dissolved in 10 mL of 1,2-dichloroethane solvent to obtain a mixed solution A ;Add 1.30g of aluminum chloride to the mixture A, then heat the oil bath to 80°C and keep stirring for 24h;

[0036] Use HCl and H at a volume ratio of 2:1 2 The above reaction system was quenched with a mixture of O, then washed three times with deionized water and twice with absolute ethanol, and further purified by extracting with absolute ethanol for 48 hours, and finally dried in a vacuum oven at 65°C for 24 hours to obtain intermediate product B.

[0037] In the above step S1, the yield of the intermediate product B is 98%, and the prepared intermediate product B is an ultra-highly c...

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Abstract

The invention belongs to the technical field of porous organic catalyst preparation, and discloses a preparation method of a hypercrosslinked porous organic polymer supported cobalt catalyst, which comprises the following steps: dissolving tetraphenylporphyrin, dibromo-p-xylene and N-methylimidazole in a 1, 2-dichloroethane solvent in a nitrogen protection state to obtain a mixed solution A; adding aluminum chloride into the mixed solution A, and then sequentially stirring in an oil bath, quenching, washing, purifying and drying to obtain an intermediate product B; dissolving cobalt acetate in deionized water to obtain a solution C; adding an acetonitrile solution containing the intermediate product B into the solution C, stirring at room temperature, centrifugally separating, washing and drying to obtain a target product D; the formed polymer can catalyze CO2 and epoxide to generate cyclic carbonate, the CO2 adsorption capacity is greatly improved, and CO2 is efficiently converted in a normal-pressure environment.

Description

technical field [0001] The invention belongs to the technical field of porous organic catalysts, and in particular relates to a preparation method of an ionic ultrahigh crosslinked porous organic polymer-supported cobalt catalyst. Background technique [0002] Porous organocatalytic materials with rich pore structure, excellent CO 2 Adsorption capacity and abundant catalytic activity make it a CO 2 Ideal material for combining capture and chemical conversion. CO on porous organocatalytic materials 2 Catalysis research is a sustainable and low-carbon strategy that not only effectively reduces atmospheric CO 2 level, also for CO 2 for recycling and production with CO 2 related to a variety of value-added chemicals. [0003] Several types of porous materials have been explored, including zeolites, porous carbons, metal-organic frameworks (MOFs), and microporous organic polymers (MOPs). 2 Adsorption is carried out, and the captured CO is captured by the supported catalyti...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J35/10C07D317/34C08G73/06
CPCB01J31/183C07D317/34C08G73/0616B01J2531/025B01J2531/845B01J35/61
Inventor 王建军陈嘉琦刘姣王显龙吴婷婷范敏伊藏雨徐亮
Owner QIQIHAR UNIVERSITY
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