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Mesoporous-carbon loaded metal phthalocyanine with catalytic activity and preparation methods

A technology for supporting metals and metal phthalocyanines, applied in the direction of catalyst carriers, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., to achieve the effects of preventing aggregation, high catalytic activity, and good catalytic activity

Active Publication Date: 2014-04-23
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, our previous research found that the catalytic activity of metal phthalocyanine and carbon materials is significantly different in different bonding modes. When the carbon atoms on the metal phthalocyanine ring are directly bonded to the carbon atoms on the carbon material, the catalytic activity is better. Highly supported metal phthalocyanine catalyst

Method used

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  • Mesoporous-carbon loaded metal phthalocyanine with catalytic activity and preparation methods
  • Mesoporous-carbon loaded metal phthalocyanine with catalytic activity and preparation methods
  • Mesoporous-carbon loaded metal phthalocyanine with catalytic activity and preparation methods

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Weigh 0.05g of tetraaminocobalt phthalocyanine and fully dissolve it in 40mL of dimethyl sulfoxide, add it dropwise to 100mL of dimethyl sulfoxide solution containing 1g of mesoporous carbon vigorously stirred at 85°C, and continue to stir evenly for 30min. Add 1mL of isoamyl nitrite (97%), and react at 85°C for 12h. The reacted solution was poured out, centrifuged to obtain a crude product, then repeatedly washed with N,N-dimethylformamide, water, and ethanol, and dried at 80°C to obtain 0.97 g of mesoporous carbon-supported cobalt phthalocyanine.

Embodiment 2

[0027] Weigh 0.5g of tetraaminozinc phthalocyanine fully dissolved in 100mL N, N-dimethylformamide, and add dropwise to 300mL N, N-dimethylformamide solution containing 5g of mesoporous carbon under vigorous stirring at 75°C, After continuing to stir evenly for 30 minutes, add 5 mL of isoamyl nitrite (97%) and react at 85°C for 18 hours. The reacted solution was poured out and centrifuged to obtain a crude product, which was then repeatedly washed with N,N-dimethylformamide, water and ethanol, and dried at 95°C to obtain 5.11 g of mesoporous carbon-supported zinc phthalocyanine.

Embodiment 3

[0029] Weigh 0.1g of monoaminotrinitrocopper phthalocyanine and fully dissolve it in 60mL of dimethyl sulfoxide, add it dropwise to 120mL of dimethyl sulfoxide solution containing 1.5g of mesoporous carbon which is vigorously stirred at 80°C, and continue to stir After homogenizing for 30 minutes, add 2 mL of isoamyl nitrite (97%) and react at 85°C for 24 hours. The reacted solution was poured out and centrifuged to obtain a crude product, which was then repeatedly washed with N,N-dimethylformamide, water, and ethanol, and dried at 80°C to obtain 1.43 g of mesoporous carbon-supported trinitrocobalt phthalocyanine.

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Abstract

The invention discloses mesoporous-carbon loaded metal phthalocyanine with catalytic activity and preparation methods. According to the mesoporous-carbon loaded metal phthalocyanine with catalytic activity, metal phthalocyanine and mesoporous carbon are subjected to a deamination reaction and form the esoporous-carbon loaded metal phthalocyanine catalyst in a covalent-bond manner. The employed metal phthalocyanine is characterized by possessing the formula 1 structure, wherein M can be metal ions of iron, cobalt, nickel, manganese, copper, rubidium, zinc and palladium, R1 is -NH2, and R2, R3 and R4 are any one of H, -NH2, -COOH, -NO2, -NHCOCH3, -NHSO3H and -SO3H. A first preparation method comprises: choosing metal phthalocyanine with an amino group, under the condition of 60-90 DEG C, adding mesoporous carbon and isoamyl nitrite, reacting for 2-48 h, and performing washing, centrifugation and drying on the product. A second preparation method comprises: firstly performing diazotization on amino metal phthalocyanine with the formula 1 structure under the condition of 0-10 DEG C, then adding mesoporous carbon and a reducing agent to react for 2-48 h, taking out, and performing washing, centrifugation and drying on the product. The mesoporous-carbon loaded metal phthalocyanine with catalytic activity has the advantages of being simple in equipment, simple in technology, easy to operate and the like. Additionally, the formula 1 is shown in the specification.

Description

technical field [0001] The invention relates to a mesoporous carbon-loaded metal phthalocyanine with catalytic activity and a preparation method, belonging to the technical fields of materials, chemistry and chemical industry. Background technique [0002] Metal phthalocyanine has many excellent properties such as acid resistance, alkali resistance, heat resistance, and light stability. When used as a catalyst, it can catalyze dozens of reactions, such as hydrogenation reaction, nitrogen oxide reduction reaction, peroxide, peroxidation Decomposition reaction of hydrogen and formic acid, synthesis reaction of ammonia, decarboxylation reaction, electrochemical reaction, photochemical reaction and oxidation reaction. However, due to the structure of metal phthalocyanine, it is easier to form dimers or polymers in solution. In order to reduce the aggregation of phthalocyanine molecules in solution and improve its catalytic efficiency, many researchers focus on the metal phthaloc...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J32/00B01J35/10
Inventor 吕汪洋李楠陈文兴姚玉元
Owner ZHEJIANG SCI-TECH UNIV
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