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Controlled surface modification method for carbon material

A technology of carbon materials and derivatives, which is applied in the field of controllable modification of the surface of carbon materials, can solve the problems of 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: 2016-01-06
HARBIN INST OF TECH
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  • 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.

Method used

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  • Controlled surface modification method for carbon material

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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

The invention relates to a controlled surface modification method for a carbon material, aims to solve the problems that the conventional functional modification method for a carbon material is narrow in application range and relatively low in functionalization degree; the controlled surface modification method comprises the following steps: step 1, preparing a derivative of benzophenone hydrazone; step 2, preparing a derivative of diaryldiazomethane; step 3, preparing a diarylcarbene modified carbon material; step 4, introducing surface functional groups of the carbon material. According to the controlled surface modification method for the carbon material, by utilizing high-activity carbene to introduce reactive points of arenediazonium salt to the surface of the carbon material, coupled reaction of arenediazonium salt can be used to introduce functional groups, so that the functional modification degree is improved, the application range of the method is widened, application to large scale industrial production and subsequent application are further facilitated; besides, the controlled surface modification method for the carbon material is used for controlled surface modification of carbon materials.

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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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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