Graphene oxide fiber and preparation method and application thereof

A graphene fiber, graphene layer technology, applied in the chemical characteristics of fibers, control of mechanical energy, textiles and papermaking, etc., to achieve the effects of high quality, wide sources, and mature synthesis technology

Active Publication Date: 2014-05-21
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are still few reports on the preparation method and driving performance of graphene oxide fibers

Method used

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  • Graphene oxide fiber and preparation method and application thereof
  • Graphene oxide fiber and preparation method and application thereof
  • Graphene oxide fiber and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Prepare a 6 mg / mL graphene oxide solution using the oxidized exfoliated graphite method (Hummers method);

[0033] 2. Concentrate the 6mg / mL graphene oxide solution at a temperature of 30-35°C, so that the concentration of the graphene oxide solution is 15mg / mL;

[0034] 3. Pour the 15mg / mL graphene oxide solution into the syringe, and the inner diameter of the syringe needle is 0.21mm.

[0035] 4. Use the above-mentioned syringe equipped with 15 mg / mL graphene oxide solution to continuously and uniformly inject the graphene oxide solution into the saturated potassium chloride methanol solution through a syringe with an inner diameter of 0.21 mm to obtain continuous linear graphene oxide gel fibers .

[0036] 5. Take the graphene oxide gel fiber, fix one end, and use the motor to rotate the other end, process 5000 revolutions per meter of graphene oxide fiber, dry the fiber naturally after processing, and perform characterization analysis on the obtained product , ...

Embodiment 2

[0040] 1. Prepare a 2 mg / mL graphene oxide solution using the oxidized exfoliated graphite method (Hummers method);

[0041]2. Concentrate the 2mg / mL graphene oxide solution at a temperature of 30-35°C, so that the concentration of the graphene oxide solution is 15mg / mL;

[0042] 3. Pour the 15mg / mL graphene oxide solution into the syringe, and the inner diameter of the syringe needle is 0.21mm.

[0043] 4. Use the above-mentioned syringe equipped with 15 mg / mL graphene oxide solution to continuously and uniformly inject the graphene oxide solution into the saturated potassium chloride methanol solution through a syringe with an inner diameter of 0.21 mm to obtain continuous linear graphene oxide gel fibers .

[0044] 5. Take the graphene oxide gel fiber, fix one end, and use the motor to rotate the other end, processing 1000 revolutions per meter of graphene oxide fiber. After processing, the fibers were dried naturally, and the resulting product was characterized and analy...

Embodiment 3

[0048] 1. Prepare a 10 mg / mL graphene oxide solution using the oxidized exfoliated graphite method (Hummers method);

[0049] 2. Concentrate the 10mg / mL graphene oxide solution at a temperature of 30-35°C, so that the concentration of the graphene oxide solution is 15mg / mL;

[0050] 3. Pour the 15mg / mL graphene oxide solution into the syringe, and the inner diameter of the syringe needle is 0.21mm.

[0051] 4. Use the above-mentioned syringe equipped with 15 mg / mL graphene oxide solution to continuously and uniformly inject the graphene oxide solution into the saturated potassium chloride methanol solution through a syringe with an inner diameter of 0.21 mm to obtain continuous linear graphene oxide gel fibers .

[0052] 5. Take the graphene oxide gel fiber, fix one end, and use the motor to rotate the other end, processing 2000 revolutions per meter of graphene oxide fiber. After processing, the fibers were dried naturally, and the resulting product was characterized and an...

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Abstract

The invention relates to a graphene oxide fiber and a preparation method and application thereof, belonging to the field of functional materials. The preparation method comprises the steps of preparing a graphene oxide solution by adopting a Hummers method, then performing water evaporation and concentration, injecting the concentrated graphene oxide solution into saturated potassium chloride methanol solution to obtain wet graphene oxide hydrogel fiber by using a syringe, rotating and processing and then naturally airing, thus obtaining the graphene oxide fiber. Under the ambient environment humidity change condition, the fiber is applied in a power generator, energy generated due to humidity change in the environment is converted into electric energy, the open circuit voltage of the power generator is 0.5-1mV, and the short-circuit current is 20-40muA. The fiber is high in quality, stable in properties, and excellent in rotating performance, and the method is low in cost and can be massively produced; the fiber is applied in the power generator, and the energy source is green and environment-friendly, and pollution-free.

Description

technical field [0001] The invention relates to a graphene oxide fiber and its preparation method and application. The graphene oxide fiber spontaneously rotates at high speed under the change of external humidity, and converts the energy generated by the change of humidity in the environment into electric energy, which is applied in a generator , belonging to the field of functional materials. Background technique [0002] Graphene is a two-dimensional material made up of a single layer of carbon atoms. Single-layer graphene has high electron mobility, large surface area, good mechanical strength and thermal conductivity, and is often used in the research of new field-effect transistors with excellent performance, micro-processing and molecular detection devices. Assembling graphene into macroscopic film-like and block-like materials is expected to have better performance than ordinary film-like and block-like materials. Research in this area has attracted the attention of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/12H02K7/18
Inventor 曲良体程虎虎
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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