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Catalytic carbon fibers and preparation method

A technology of carbon fiber and catalytic carbon, which is applied in the fields of materials, chemistry and chemical industry, can solve problems such as complex preparation routes, achieve good chemical stability, simple equipment, and prevent aggregation

Active Publication Date: 2014-04-16
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation routes of most supported metal phthalocyanines are still complicated, and their solvent resistance and high temperature stability need to be further improved. Therefore, it is necessary to develop a simple and mild preparation method to synthesize supported metal phthalocyanines with a wider range of applications Phthalocyanine catalyst

Method used

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  • Catalytic carbon fibers and preparation method
  • Catalytic carbon fibers and preparation method
  • Catalytic carbon fibers and preparation method

Examples

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preparation example Construction

[0018] A kind of preparation method of catalytic carbon fiber as above, this preparation method selects for use containing-NH 2 The metal phthalocyanine and p-aminobenzenesulfonic acid are used as raw materials, and the carbon fiber is dispersed in the solvent at a reaction temperature of 60-90 ° C, and the -NH 2 The metal phthalocyanine, p-aminobenzenesulfonic acid and condensing agent were added therein, stirred and reacted for 2-48 hours, after the reaction was completed, the carbon fiber loaded with metal phthalocyanine was taken out, and the reaction solvent, N,N-dimethylformamide, Wash with water and ethanol, and dry at 80-100°C to obtain catalytic carbon fiber.

[0019] A method for preparing catalytic carbon fibers as described above, the preparation method is to disperse carbon fibers in a solvent under the condition that the reaction temperature is 60-90 ° C, and fully dissolve in the solvent containing -NH 2 The metal phthalocyanine and the condensing agent are add...

Embodiment 1

[0022] Weigh 0.05g of tetraaminocobalt phthalocyanine and 0.25g of p-aminobenzenesulfonic acid and dissolve them fully in 40mL and 60mL of dimethyl sulfoxide, respectively, and add dropwise to 200mL of dimethyl sulfoxide solution containing 2g of carbon fiber, at 85 Stir vigorously in an oil bath at ℃, react for 30 minutes, then add 1mL isoamyl nitrite (97%), react at 85℃ for 12 hours, finally remove the reaction solution, take out the carbon fiber loaded with cobalt phthalocyanine, and use N, N - Repeated washing with dimethylformamide, water and ethanol, and drying at 80°C to obtain 2.16g of catalytic carbon fibers.

Embodiment 2

[0024] Weigh 0.3g of tetraaminocobalt phthalocyanine and fully dissolve it in 100mL of dimethyl sulfoxide, add it dropwise to a solution of dimethyl sulfoxide (300mL) containing 6g of carbon fiber that is vigorously stirred in an oil bath at 85°C and continue stirring for 30 Minutes later, add 4 mL of isoamyl nitrite (97%), react at 85°C for 12 hours, remove the reaction solution, take out the carbon fiber loaded with cobalt phthalocyanine, and wash with N,N-dimethylformamide, water, ethanol Repeated washing and drying at 90°C yielded 6.13g of cobalt phthalocyanine-loaded carbon fibers; weighed 0.65g of p-aminobenzenesulfonic acid and fully dissolved it in 100mL of dimethyl sulfoxide, and added it dropwise to the The dimethyl sulfoxide (300 mL) solution containing 6.13 g of cobalt phthalocyanine-supported carbon fibers was stirred for 30 minutes, then 4 mL of isoamyl nitrite (97%) was added, and reacted at 85 ° C for 12 hours, and finally the reaction solution was removed. The...

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Abstract

The invention relates to catalytic carbon fibers and a preparation method. The catalytic carbon fibers are formed by combining carbon fibers and metal phthalocyanine as well as sulfanilic acid in a covalent bond manner. The used metal phthalocyanine is characterized by having a structure in a formula 1 shown in the Specification, wherein M can be iron, cobalt, nickel, manganese, copper, rubidium, zinc, platinum and palladium transition metal ions; R1 is -NH2; R2, R3 and R4 respectively are any one of -H, -NH2, -COOH, -NO2, -NHCOCH3, -NHSO3H, -SO3H. The method comprises the following steps: selecting the metal phthalocyanine comprising the amino group; under the condition of 60 to 90 DEG C, adding the sulfanilic acid, the carbon fibers and a condensing agent and performing the reaction for a certain time; taking out the carbon fibers loaded with the metal phthalocyanine; repeatedly washing; drying at a temperature of 80 to 100 DEG C to obtain the catalytic carbon fibers. The method has the advantages of simple equipment, simple and convenient process, easiness for operation and the like.

Description

technical field [0001] The invention relates to a catalytic carbon fiber and a preparation method, belonging to the technical fields of materials, chemistry and chemical industry. Background technique [0002] Metal phthalocyanine is a π-electron conjugated macrocyclic compound composed of imine bridges connecting four symmetrical isoindole units. The central metal ion can be a variety of metal elements in the periodic table of elements. The benzene ring on the periphery of the phthalocyanine molecule A variety of substituents can be introduced, and metal phthalocyanines can also be polymerized by sharing one or more benzene rings to form monometallic or polymetallic polyphthalocyanines. Its structure has the following characteristics: (1) the aromatic π electrons are conjugated on the entire phthalocyanine ring, and the conjugated macromolecule presents a high degree of planarity, and the catalytic reaction can occur at the axial position of the plane; (2) the aromatic ring...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J35/06
Inventor 吕汪洋李楠陈文兴姚玉元
Owner ZHEJIANG SCI-TECH UNIV
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