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Preparation and application of Sn/La bimetallic porous coordination polymer (SnxLaPCP)

A porous coordination and bimetallic technology, applied in the direction of organic compound/hydride/coordination complex catalyst, chemical/physical process, physical/chemical process catalyst, etc., can solve the problem that aromatic polymers are not fully utilized , to achieve the effects of stable mechanical properties, large specific surface area, and stable catalytic activity

Inactive Publication Date: 2019-06-25
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lignin, as the main component and the only naturally occurring aromatic polymer of lignocellulosic biomass, is underutilized and generally considered as a waste by-product in biorefineries and the pulp industry

Method used

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  • Preparation and application of Sn/La bimetallic porous coordination polymer (SnxLaPCP)
  • Preparation and application of Sn/La bimetallic porous coordination polymer (SnxLaPCP)
  • Preparation and application of Sn/La bimetallic porous coordination polymer (SnxLaPCP)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: tin-lanthanum bimetallic porous coordination polymer catalyst material (Sn x LaPCP).

[0017] (1) Weigh 2.4245g of tin tetrachloride pentahydrate (SnCl 4 ٠5H 2 O) Dissolved in 70mL of N,N-dimethylformamide (DMF), stirred at 200r / min until completely clear, weighed 3.7545g of 5-sulfoisophthalic acid (SIP) Add 0.4766g of imidazole (IMD) into the clear solution containing tin tetrachloride, and stir at 200r / min for 20 min until clear.

[0018] (2) Add 0.4549g of an appropriate amount of lanthanum nitrate hexahydrate (La(NO 3 ) 3 ٠6H 2 O) with 0.2942g of trimesic acid (1,3,5-H 3 BTC) was added to the above solution, stirred at a speed of 200r / min for 15min, the clear solution was transferred to an autoclave, heated at 100°C for 20h, and the autoclave was cooled to room temperature after completion.

[0019] (3) Suction filter the generated precipitate, wash it with a large amount of DMF, deionized water, and absolute ethanol several times, and finally p...

Embodiment 2

[0020] Embodiment 2: Lanthanum bimetallic porous coordination polymer catalyst material (Sn x LaPCP).

[0021] (1) Weigh 2.4245g of tin tetrachloride pentahydrate (SnCl 4 ٠5H 2 O) Dissolved in 70mL of N,N-dimethylformamide (DMF), stirred at 200r / min until completely clear, weighed 3.7545g of 5-sulfoisophthalic acid (SIP) Add 0.4766g of imidazole (IMD) into the clear solution containing tin tetrachloride, and stir at 200r / min for 20 min until clear.

[0022] (2) Add 0.5686g of an appropriate amount of lanthanum nitrate hexahydrate (La(NO 3 ) 3 ٠6H 2 O) with 0.3677g of trimesic acid (1,3,5-H 3 BTC) was added to the above solution, stirred at a speed of 200r / min for 15 min, the clear solution was transferred to an autoclave, heated at 100°C for 20h, and the autoclave was cooled to room temperature after completion.

[0023] (3) Suction filter the generated precipitate, wash it with a large amount of DMF, deionized water, and absolute ethanol several times, and finally put ...

Embodiment 3

[0024] Embodiment 3: tin-lanthanum bimetallic porous coordination polymer catalyst material (Sn x LaPCP).

[0025] (1) Weigh 2.4245g of tin tetrachloride pentahydrate (SnCl 4 ٠5H 2 O) Dissolved in 70mL of N,N-dimethylformamide (DMF), stirred at 200r / min until completely clear, weighed 3.7545g of 5-sulfoisophthalic acid (SIP) Add 0.4766g of imidazole (IMD) into the clear solution containing tin tetrachloride, and stir at 200r / min for 20 min until clear.

[0026] (2) Add 0.7581g of an appropriate amount of lanthanum nitrate hexahydrate (La(NO 3 ) 3 ٠6H 2 O) with 0.4896g of trimesic acid (1,3,5-H 3 BTC) was added to the above solution, stirred at a speed of 200r / min for 15 min, the clear solution was transferred to an autoclave, heated at 100°C for 20h, and the autoclave was cooled to room temperature after completion.

[0027] (3) Suction filter the generated precipitate, wash it with a large amount of DMF, deionized water, and absolute ethanol several times, and finally ...

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PUM

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Abstract

The invention discloses a Sn / La bimetallic porous coordination polymer catalyst material (SnxLaPCP) containing Lewis acid and Bronsted acid active sites at the same time and a preparation method thereof. The Sn / La bimetallic porous coordination polymer catalyst material (SnxLaPCP) is prepared with SnCl4, 5-sodium sulfoisophthalate (5-SIP), imidazole, lanthanum nitrate and trimesic acid (1,3,5-BTC)as raw materials through a solvothermal method. The Sn / La bimetallic porous coordination polymer material has a micropore structure and a mesoporous structure at the same time and contains imidazoleand sulfonic acid groups. Due to the fact that Lewis acid and Bronsted acid active sites are obtained at the same time, the material has a large specific surface area and good cycling stability, and the material has a wide application prospect in the aspect of catalytic reaction.

Description

technical field [0001] The present invention is based on tin tetrachloride (SnCl 4 ), 5-sulfoisophthalate (5-SIP), imidazole, lanthanum nitrate, and trimesic acid (1,3,5-BTC) were prepared by solvothermal method containing Lewis acid and Brønsted acid active sites The tin-lanthanum bimetallic porous coordination polymer material (Sn x LaPCP) preparation method, and applied to the reaction of catalyzing the preparation of HMF from glucose. Background technique [0002] Over the past two centuries, global energy demand has increased dramatically. At the same time, the use of fossil fuels as the main energy source has caused greenhouse gas emissions and a series of environmental problems. Among various types of renewable energy, non-food biomass is a promising feedstock for the manufacture of liquid fuels and valuable chemicals due to the high energy content stored in the biosphere. The average energy content of dry non-food biomass is about 17-20 MJ / kg. The main component...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00B01J31/22B01J35/10C07D307/46
Inventor 李可纪培军
Owner BEIJING UNIV OF CHEM TECH