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A method for controllable surface modification of carbon materials

A technology of carbon materials and derivatives, which is applied in the field of controllable surface modification of carbon materials, can solve problems such as low degree of functionalization and narrow application range, and achieve expansion of application area, improvement of functional modification degree, aryl diazonium salt couple Efficient effect of combined reaction

Active Publication Date: 2017-06-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a method for controllable modification of the surface of carbon materials in order to solve the problems of narrow application range and low degree of functionalization of existing methods for functional modification of carbon materials.

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  • A method for controllable surface modification of carbon materials

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specific Embodiment approach 1

[0022] Specific implementation mode 1: The method for the controllable modification of the carbon material surface in this implementation mode is realized according to the following steps:

[0023] Step 1, the preparation of benzophenone hydrazone derivatives:

[0024] Add 2g to 20g of benzophenone derivatives into a 0.1 to 2L round bottom flask, add 50mL to 1000mL of absolute ethanol and 1g to 50g of hydrazine hydrate with a mass fraction of 85% in sequence, and carry out a reflux reaction under stirring for 24h to 120h, After the reaction is completed, 25mL-600mL of ethanol in the reaction solution is distilled off under reduced pressure, and the remaining reaction solution is cooled and crystallized in an ice-water bath for 10min-60min, and the crystallized product is obtained by vacuum filtration with a sand core funnel, and the crystallized product is washed with distilled water for 3-60 minutes. 5 times, after the final vacuum drying, the preparation of the benzophenone ...

specific Embodiment approach 2

[0034] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the temperature for the reflux reaction described in Step 1 is 80°C. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0035] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the vacuum drying described in Step 1 is vacuum drying at 20° C. to 60° C. for 12 hours to 36 hours. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

A method for controllable modification of the surface of a carbon material relates to a method for controllable modification of the surface of a carbon material. The invention aims to solve the problems that the existing method for functional modification of carbon materials has narrow application scope, low functional degree and the like. Summary of the invention: Step 1: Preparation of benzophenone hydrazone derivatives; Step 2: Preparation of bisaryl diazomethane derivatives; Step 3: Preparation of bisaryl carbene modified carbon materials; Step 4: Surface function of carbon materials Group introduction. The present invention uses highly active carbene to introduce aryl diazonium salt reactive sites on the surface of carbon materials, and then uses aryl diazonium salt coupling reaction to introduce functional groups, thereby improving the degree of functional modification and expanding the scope of application of the method , suitable for large-scale industrial production and subsequent applications. The invention is used for the controllable modification of the carbon material surface.

Description

technical field [0001] The invention relates to a method for controllable modification of the surface of a carbon material. Background technique [0002] Due to their excellent mechanical, electrical, chemical properties and unique molecular structure, carbon materials have attracted great attention in hot fields such as nanomaterials, life sciences, energy and the environment. However, the six-membered ring structure of carbon materials makes their surface chemically inert, and their solubility and dispersion in common solvents and polymer matrices are poor, which limits their applications. [0003] With the continuous expansion of the application field of carbon materials, its research direction began to shift to surface modification and chemical modification. Surface modification of carbon materials can improve their physical and chemical properties and expand their application fields. At present, the chemical modification methods of carbon materials mainly include orga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C309/46C07C303/22
Inventor 胡桢黄玉东黎俊宋忱昊
Owner HARBIN INST OF TECH
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