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Method for preparing graphene paper through utilizing electric field guidance

A graphene paper and graphene technology, applied in the direction of graphene, chemical instruments and methods, papermaking, etc., can solve the problems of low mechanical strength, achieve good mechanical properties, high conductivity, easy and feasible operation

Inactive Publication Date: 2013-08-21
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Graphene paper made of graphene also has many excellent properties. The hardness of graphene paper prepared by Ali R.Ranjbartoreh et al. is twice that of carbon steel, and the thickness is only 3um, but the tensile strength is only about 78MPa (Ali R.Ranjbartoreh et al.JOURNAL OF APPLIED PHYSICS 109, 014306, 2011.), Xiaowei Yang first prepared graphite oxide paper, which became graphene paper after reduction, with an average elastic modulus of only 76MPa and low mechanical strength (Xiaowei Yang.et al. Angew.Chem.Int.Ed.2011, 50, 7325-7328)

Method used

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  • Method for preparing graphene paper through utilizing electric field guidance

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Effect test

Embodiment 1

[0028] Utilize the method for electric field guidance to prepare graphene paper, comprise the following steps:

[0029] (1) Get 10g ferric chloride intercalation graphite and join in the beaker, then add 1L deionized water, under stirring, be made into the intercalation graphite suspension that concentration is 10g / L;

[0030] (2) Ultrasonic treatment is carried out to the intercalated graphite suspension, and ultrasonic cleaner is used for 10 minutes, and the power of the ultrasonic cleaner is preferably 150w, so that the intercalated graphite is peeled off, and a solution containing graphene is obtained;

[0031] (3) Pour the solution containing graphene into the filter funnel, and place the filter funnel in a uniform electric field with an electric field strength of 200V / m. Under the guidance of the electric field force and the interaction force of the charge, the solution containing graphene Graphene is deposited;

[0032] (4) After the graphene is basically deposited, fi...

Embodiment 2

[0036] Utilize the method for electric field guidance to prepare graphene paper, comprise the following steps:

[0037] (1) Get 5g cobalt chloride intercalation graphite and join in the beaker, then add 1L deionized water, under stirring, be made into the intercalation graphite suspension that concentration is 5g / L;

[0038] (2) Ultrasonic treatment is carried out to the intercalated graphite suspension, and ultrasonic cleaner is used for 15 minutes, and the power of the ultrasonic cleaner is preferably 400w, so that the intercalated graphite is peeled off, and a solution containing graphene is obtained;

[0039] (3) Pour the solution containing graphene into the filter funnel, and place the filter funnel in a uniform electric field with an electric field strength of 50V / m. Under the guidance of the electric field force and the interaction force of the charge, the solution containing graphene Graphene is deposited;

[0040] (4) After the graphene is basically deposited, filte...

Embodiment 3

[0043] Utilize the method for electric field guidance to prepare graphene paper, comprise the following steps:

[0044] (1) Get 6g potassium chloride intercalation graphite and join in the beaker, then add 1L deionized water, under stirring, be made into the intercalation graphite suspension that concentration is 6g / L;

[0045] (2) Ultrasonic treatment is carried out to the intercalation graphite suspension, and the ultrasonic cleaner is used for 12 minutes, and the power of the ultrasonic cleaner is preferably 200w, so that the intercalation graphite is peeled off, and a solution containing graphene is obtained;

[0046] (3) Pour the solution containing graphene into the filter funnel, and place the filter funnel in a uniform electric field with an electric field strength of 100V / m. Under the guidance of the electric field force and the interaction force of the charge, the solution containing graphene Graphene is deposited;

[0047] (4) After the graphene is basically deposite...

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Abstract

The invention provides a method for preparing graphene paper through utilizing electric field guidance. The method comprises the following steps: taking chloride intercalated graphite, adding deionized water, stirring to prepare an intercalated graphite suspension, peeling the intercalated graphite through utilizing supersonic waves to prepare a graphene-containing solution, dumping the intercalated graphite into a filter funnel, placing the filter funnel in a uniform electric field having an electric field intensity of 50-200V / m for the deposition of graphene in the graphene-containing solution, filtering after the basic deposition of graphene, and drying filter paper containing the obtained filter to prepare the graphene paper. The method has the advantages of simple equipment, easy and feasible operation, easy realization of the automatic and industrialized production, and ordered arrangement of graphene in the process; and the graphene paper prepared in the invention has the advantages of good mechanical properties, and realization of thickness control through the amount of the intercalated graphite, and has a higher conductivity than graphene paper prepared through a common oxidation reduction method.

Description

technical field [0001] The invention relates to the field of new material synthesis, in particular to a method for preparing graphene paper guided by an electric field. Background technique [0002] After its discovery in 1841, intercalated graphite has been extensively and in-depth researched on its properties and applications. Because it maintains the good properties of graphite and has some unique properties, it can be used in conductors, superconductors, batteries and other fields. [0003] Graphene is a two-dimensional carbon atom crystal discovered by Andre K. Geim of the University of Manchester in 2004. It is a single-layer or multi-layer extremely thin carbon material. Due to its unique structure and photoelectric properties, it has become a research hotspot in the fields of carbon materials, nanotechnology, condensed matter physics and functional materials, attracting many scientific and technological workers. Single-layer graphene has many excellent properties, s...

Claims

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Application Information

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IPC IPC(8): D21H13/50C01B31/04C01B32/19C01B32/194
Inventor 周明杰袁新生王要兵
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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