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Method for efficiently preparing graphene oxide organic solution

An organic solution and graphene technology, which is applied in the field of efficient preparation of graphene oxide organic solution, can solve the problems of prolonged preparation process, time-consuming and energy-consuming drying process, and narrow organic system range, so as to shorten the process flow, avoid energy loss, The effect of simple preparation equipment

Inactive Publication Date: 2016-10-12
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This not only prolongs the preparation process of graphene oxide organic solution, and consumes time and energy in the drying process, but also narrows the range of available organic systems.

Method used

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  • Method for efficiently preparing graphene oxide organic solution
  • Method for efficiently preparing graphene oxide organic solution
  • Method for efficiently preparing graphene oxide organic solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) The target graphene oxide organic solution is determined. According to the demand, determine the required configuration is that the concentration is b=0.01mg / ml, and the volume is V B总 Graphene oxide N of =1000ml, N dimethylmethylamine (DMF) solution:

[0046] (2) according to the concentration and volume of the target graphene oxide organic solution in step (1), determine the concentration a mg / ml and volume V of the required graphene oxide aqueous solution A总 ml. In this implementation example, the graphene oxide aqueous solution purchased from Zhongke Tanmei and developed by improving the hummers method is used. Therefore, it is determined that the concentration of graphene oxide in Zhongke Tanmei is 2mg / ml. The concentration of graphene oxide in the known aqueous solution of graphene oxide Concentration, ie a=2.

[0047] The required graphene oxide aqueous solution volume V A总 calculation. For simplicity, it is assumed that the volume of the solution does n...

Embodiment 2

[0054] (1) The target graphene oxide organic solution is determined. According to the demand, determine the required configuration is that the concentration is b=0.1mg / ml, and the volume is V B总 The graphene oxide ethylenediamine solution of =500ml:

[0055](2) according to the concentration and volume of step (1) target graphene oxide organic solution, determine and the concentration a mg / ml and volume V of required graphene oxide aqueous solution A总 ml. In this implementation example, according to the document Deoxygenation ofExfoliated Graphite Oxide under Alkaline Conditions:A green route to graphenepreparation.Advanced Materials,2008,20(23):4490-4493. method, it is determined that the graphene oxide that can obtain concentration is 0.5mg / ml Aqueous solution; ie a = 0.5.

[0056] The required graphene oxide aqueous solution volume V A总 calculation.

[0057] In order to simplify the calculation, it is assumed that the volume of the solution does not change due to the a...

Embodiment 3

[0065] (1) The target graphene oxide organic solution is determined. According to the demand, determine the required configuration is that the concentration is b=2mg / ml, and the volume is V B总 =200ml of graphene oxide N,N dimethylacetamide (DMAC) solution.

[0066] (2) according to the concentration and volume of step (1) target graphene oxide organic solution, determine and the concentration a mg / ml and volume V of required graphene oxide aqueous solution A总 ml. In this implementation example, by purchasing the TNWIGO type graphene oxide aqueous solution from Chengdu Organic Chemistry Co., Ltd., Chinese Academy of Sciences, the concentration of graphene oxide with a concentration of 10 mg / ml is determined to be the known concentration of graphene oxide aqueous solution, that is, a=10.

[0067] The required graphene oxide aqueous solution volume V A总 calculation.

[0068] In order to simplify the calculation, it is assumed that the volume of the solution does not change du...

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Abstract

The invention discloses a method for efficiently preparing a graphene oxide organic solution. A target organic solvent is added to a graphene oxide aqueous solution with known concentration, water and the target organic solvent are separated with a solvent replacement method through distillation or fractionation, finally, a graphene oxide organic solution without water is ultrasonically dispersed, and the graphene oxide organic solution is obtained. The method has the advantages that the process is simple and the concentration and variety range of the organic solution is wide.

Description

technical field [0001] The invention belongs to a method for efficiently preparing graphene oxide organic solution. Background technique [0002] Graphene is another new two-dimensional nano-carbon material with unique and excellent properties after zero-dimensional fullerene, one-dimensional carbon nanotube and three-dimensional graphite. It not only fills the blank of carbon materials from zero-dimensional to three-dimensional, but also because of its With excellent thermal, mechanical, optical, and electrical properties, it is considered to have broad application prospects in the fields of solar cells, sensors, nanoelectronics, high-performance nanoelectronic devices, composite materials, field emission materials, gas sensors, and energy storage. . However, graphene has limited its wide application due to its ultra-high specific surface area, strong van der Waals force, hydrophobic properties and easy agglomeration. [0003] The appearance of graphene oxide, an intermed...

Claims

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Application Information

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IPC IPC(8): C01B31/04
CPCC01P2004/01C01P2004/03C01P2004/04
Inventor 陈成猛李晓明苏方远孔庆强刘卓蔡榕
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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