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Graphene oxide film-based electric energy generation method

A technology of graphene film and production method, which is applied in chemical instruments and methods, generators that convert kinetic energy into electric energy, inorganic chemistry, etc., can solve the problems of aqueous solution leakage, restricted aqueous solution fluidity, expensive materials, etc., and achieve low cost , to achieve the effect of multi-level utilization

Active Publication Date: 2018-03-30
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the above methods are generally limited by the fluidity of the aqueous solution, and there is a problem that the aqueous solution may leak, or the materials used are relatively expensive, and are not suitable for large-scale preparation and wide use.

Method used

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  • Graphene oxide film-based electric energy generation method
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  • Graphene oxide film-based electric energy generation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 5

[0034] The test method of embodiment 5 is:

[0035] Place two conductive materials of the same material on both sides of the graphene oxide film, and apply a pressure of 10Mpa to ensure a tight installation. Connect the electrical signal testing instrument to the conductive material with a wire for testing.

[0036] The electrical signal testing instrument used is a Keithley digital source meter (2400). The bias voltage for testing the short-circuit current is about 5 μV, and the current for testing the open-circuit voltage is about 3 pA.

[0037] The preparation method of the graphene oxide film is as follows: after grinding 9g of sodium nitrate in a mortar, mix it with 9g of graphite powder and add it into 240mL of concentrated sulfuric acid. Under the condition of ice bath and stirring, slowly add 40.5g of potassium permanganate into the concentrated sulfuric acid, and continue to vigorously stir for 2h. The system was warmed up to 36 °C and maintained for 2 h. Subsequent...

Embodiment 1

[0039] A method for generating electric energy based on graphene oxide film, the method steps are as follows:

[0040] (1) Place two identical gold sheets (1*2cm) on both sides of the graphene oxide film, and apply a pressure of 10Mpa to ensure fast installation to form a power generation device;

[0041] (2) By intermittently applying moisture to the power generation device and changing the humidity environment of the graphene oxide film, electricity can be generated;

[0042] Wherein, the graphene oxide film is obtained after suction filtration of the graphene oxide aqueous solution, and the moisture is applied at the position where the conductive material contacts the graphene oxide film; the moisture is along a direction perpendicular to the graphene oxide film layer Applying; the moisture is applied for 30 seconds and then stopped, and continued after 100 seconds; the temperature of the moisture is 20° C.; the relative humidity of the moisture is 70%.

[0043] The measur...

Embodiment 2

[0046] A method for generating electric energy based on graphene oxide film, the method steps are as follows:

[0047] (1) Place two identical gold sheets (1*2cm) on both sides of the graphene oxide film, and apply a pressure of 10Mpa to ensure fast installation to form a power generation device;

[0048] (2) By intermittently applying moisture to the power generation device and changing the humidity environment of the graphene oxide film, electricity can be generated;

[0049] Wherein, the graphene oxide film is obtained by drying the graphene oxide aqueous solution at 50° C., and the moisture is applied at the position where the conductive material contacts the graphene oxide film; Applied in the sheet direction; the moisture application was stopped after 30 seconds, and continued after 100 seconds; the temperature of the moisture was 20°C; the relative humidity of the moisture was 70%.

[0050] The measured open-circuit voltage is about 250mV-300mV, indicating that electri...

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Abstract

The invention relates to a graphene oxide film-based electric energy generation method, and belongs to the field of a functional material. The method comprises the steps of respectively placing two same conductive materials on a graphene oxide film, and ensuring fastening installation to form a power generation device; and changing a humidity environment of the graphene oxide film by interruptedlyapplying humidity into the power generation device so as to generate electric energy, wherein the conductive material is a metal conductive material or a non-metal conductive material, and the thickness of the graphene oxide film is 100 nanometers to 100 micrometers. By the method, the electric energy is spontaneously generated, and no extra charging process is needed; and different from an energy device such as a solar cell limited by an external environment, the method has the advantages that the power generation process can be achieved only by changing the humidity and only involves the graphene oxide film and the moisture humidity changing process, the process is completely green and environmental-friendly, the method can be used for acquiring energy from automobile exhaust, and multi-stage utilization of energy is achieved.

Description

technical field [0001] The invention relates to a method for generating electric energy based on a graphene oxide film, which belongs to the field of functional materials. Background technique [0002] With the depletion of traditional fossil fuels and the resulting pollution problems, renewable, green and clean energy has attracted more and more attention from society. Converting energy sources that widely exist in nature but cannot be directly utilized (such as solar energy, waste heat energy, and concentration energy) into electrical energy that can be directly applied will generate huge economic and social benefits. Energy supply devices such as solar cells and thermoelectric modules have been developed accordingly to capture this energy in nature and convert it into electricity. However, widespread use of these devices is limited by environmental constraints. [0003] Compared with other substances, water and water vapor are more common and less constrained by the env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N3/00C01B32/198
CPCH02N3/00
Inventor 曲良体许同
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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