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Method for synthesizing graphite alkene by coordination assembly

A technology for synthesizing graphite and coordination, applied in the field of graphene synthesis, can solve the problems of complex equipment required for the reaction, poor production safety, harsh reaction conditions, etc., and achieve the effects of reducing synthesis cost, good conductivity and simple equipment.

Active Publication Date: 2010-01-06
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to solve the problems of difficult size control, poor production safety, uneven thickness, high production cost, complex equipment required for reaction, harsh reaction conditions and low output in the existing graphene preparation method, which makes industrial production difficult; Thus providing a method for the synthesis of graphene by coordination assembly

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  • Method for synthesizing graphite alkene by coordination assembly
  • Method for synthesizing graphite alkene by coordination assembly
  • Method for synthesizing graphite alkene by coordination assembly

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specific Embodiment approach 1

[0016] Specific embodiment one: the method for the coordination assembly synthesis graphene of this embodiment is completed by the following steps: one, adopt ultrasonic method, acid treatment method or alkali treatment method to carry out pretreatment to the carbon source with coordination group ( Activate the carbon source with the coordination group); 2. The carbon source with the coordination group is added in the solvent, the carbon source with the coordination group and the mass ratio of the solvent are 1: 2~100, then at 120 Heat treatment at ℃ for 2 to 8 hours, then add the catalyst at a temperature of 40 to 90 degrees C and a stirring speed of 100 to 350 r / min, and then stir for 4 to 24 hours. The mass ratio of the carbon source with the coordination group to the catalyst is 1: 0.05~2, the solvent is one of water, ethanol and ethylene glycol or a mixture of several of them; 3. Coordination assembly: use ultrasonic method, hydrothermal method or microwave method to proce...

specific Embodiment approach 2

[0018] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the carbon source with a coordination group described in step 1 is an anion-cation exchange resin with a coordination group, a macropore with a coordination group Resin, chelating resin with coordination group or high molecular polymer with coordination group. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0019] Specific embodiment three: the difference between this embodiment and specific embodiment two is: the anion-cation exchange resin with a coordination group is an acrylic weakly basic anion exchange resin with a coordination group, and has a coordination group Styrene-based strongly basic anion exchange resins, amphoteric ion-exchange resins with coordination groups, or acrylic cation-exchange resins with coordination groups. Other steps and parameters are the same as in the second embodiment.

[0020] Styrene-based strongly basic anion-exchange resins with coordinating groups such as D201×7 styrene-based strongly basic anion-exchange resins produced by Langfang Nanda Resin Co., Ltd.; acrylic acid-based weakly basic anion-exchange resins with coordinating groups Resin such as the D311 macroporous weakly basic acrylic acid series anion exchange resin produced by Wandong Chemical Co., Ltd., Tianchang City, Anhui Province; the amphoteric ion exchange resin with a coordinati...

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Abstract

The invention relates to a synthetic method of graphite alkene, in particular to a method for synthesizing the graphite alkene by coordination assembly, solving the problems of hardly controlled size, poor production safety, uneven thickness, high production cost, complicate reaction equipment, strict reaction conditions, low yield, and the like existed in the prior preparation method so that the industrialized production is difficult. The method of the invention comprises the following steps: (1) pretreating a carbon source with coordinating groups; (2) adding into a solvent; pretreating; adding a catalyst and stirring; (3) coordinating and assembling; (4) pre-carbonizing; (5) thermally treating; and (6) returning acid and washing and drying distilled water to obtain the graphite alkene. The graphite alkene of the invention has even appearance, a single or multi-layer two-dimensional layered structure, a size of 500 nanometers -5 micrometers, favorable conductivity and wide range of application. The invention has simple technology, low cost, high yield, simple equipment, strong production safety, controllable product size and easily realized industrialized production.

Description

technical field [0001] The invention relates to a synthesis method of graphene. Background technique [0002] Graphene is a new carbonaceous material in which carbon atoms are tightly packed into a two-dimensional layered lattice structure. In view of graphene's excellent crystallinity and electrical and extraordinary electronics, thermodynamics, mechanical properties and its potential application value, more and more scholars have participated in the research of graphene's synthesis and properties. [0003] At present, the synthesis methods of graphene mainly include: micromechanical separation method, orientation growth method, pyrolytic silicon carbide (SiC) method and chemical dispersion method. [0004] The micromechanical exfoliation method is directly peeled off from a larger highly oriented graphite crystal (HOPG), and its size is not easy to control, and it is impossible to reliably manufacture graphene flakes with sufficient length for use. To obtain graphene flak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
Inventor 付宏刚王蕾田春贵王宝丽王瑞红杨军田国辉
Owner HEILONGJIANG UNIV
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