Method for preparing graphene-phthalocyanin nano composite material by mercaptan-alkene clicking chemical method

A technology of nanocomposite materials and chemical methods, which is applied in the field of graphene-phthalocyanine nanocomposites prepared by thiol-ene click chemistry, achieving high product quality, wide application prospects and high input-output ratio

Inactive Publication Date: 2010-02-17
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no public literature reports and patent applications on the preparation method of graphene-phthalocyanine nanocomposites by thiol-ene click chemistry at home and abroad.

Method used

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  • Method for preparing graphene-phthalocyanin nano composite material by mercaptan-alkene clicking chemical method
  • Method for preparing graphene-phthalocyanin nano composite material by mercaptan-alkene clicking chemical method
  • Method for preparing graphene-phthalocyanin nano composite material by mercaptan-alkene clicking chemical method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Measure 50mL of 98% concentrated sulfuric acid and place it in an ice-water bath to keep it at 0-5°C. Add 4.0 g flake graphite and 2.0 g NaN0 while stirring 3 mixture, stir well. Slowly add 12g KMn0 4 , After the addition was complete, the ice-water bath was removed, and the reaction was stirred at room temperature for 24h. Then add 100 mL of deionized water, raise the temperature to 90°C, and continue stirring for 1 h. Lower the temperature to 55° C., add 30 mL of 30 wt % hydrogen peroxide, and continue stirring for 45 min. After the reaction is completed, the graphite oxide is obtained by high-speed centrifugation, filtration and repeated water washing to neutrality, ion exchange resin treatment, and finally low-temperature vacuum drying.

[0026] Disperse 2.0g of the above-mentioned graphite oxide in absolute ethanol, add 15mL of KH-570 ethanol solution with a concentration of 0.15g / ml dropwise in a water bath at 35°C, react continuously for 48 hours, centrifugally...

Embodiment 2

[0032] Same as Example 1, but the concentration of coupling agent KH-570 ethanol solution is changed from 0.15g / ml to 0.25g / ml.

Embodiment 3

[0034] Same as Example 1, but the coupling agent KH-570 is changed to titanate coupling agent 5S, and its dosage remains unchanged.

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Abstract

The invention belongs to the technical field of chemical industries, in particular to a method for preparing a graphene-phthalocyanin nano composite material by a mercaptan-alkene clicking chemical method. The method comprises the following steps: introducing a plurality of carbon-carbon double-bond functional group by chemically modified graphite oxide; selecting proper sulfydryl phthalocyanin; and preparing the functional graphene-phthalocyanin nano composite material at one step by mercaptan-alkene clicking chemical reaction. The invention does not use a heavy metal ion as a catalyst, solves the problems of loose combination, easy falling, and the like of a traditional phthalocyanin macromolecule on the surface of the grapheme and has favorable environmental protection and advancement.The method has the advantages of simplicity, convenience, one-step completion, no catalyst addition, low cost, no pollution to environment, wide application prospect, and the like. The graphene-phthalocyanin nano composite material product has higher photosensitivity, compatibility and thermostability and favorable dissolubility, film forming performance and photoelectric performance, is a new generation high-performance organic-inorganic nano composite photoelectric function material and can be applied to the fields of conducting materials, solar energy cell materials, photoelectric conducting materials, photoelectric converting materials, and the like.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a method for preparing graphene-phthalocyanine nanocomposite materials by a thiol-ene click chemistry method. Background technique [0002] In recent years, organic solar cells have become one of the research hotspots in this field because of their low cost, light weight, convenient preparation and molecular tailorability. As a macrocyclic conjugated complex with a special aromatic conjugated system, phthalocyanine has become a very important organic compound because of its low production cost, excellent colorability, good stability, and good absorption in the visible light region. Electron donor materials in solar cell materials. Graphite materials with less than 10 layers are collectively referred to as graphene materials, and the theoretical specific surface area of ​​graphene materials is as high as 2600m 2 / g, with outstanding thermal conductivity (30...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B3/00
Inventor 杨正龙
Owner TONGJI UNIV
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