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Preparation method of functionalized graphene roll hydrovoltaic PN junction

A technology of aminated graphene and carboxylated graphene, which is applied in the field of preparation of wet-gas power generation devices, can solve problems such as cost increase and ecological damage, and achieve the effects of increasing power generation, low equipment requirements, and easy availability of materials.

Pending Publication Date: 2020-08-14
YANCHENG TEACHERS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional water energy utilization mode is greatly restricted by natural conditions and is easily affected by external factors such as terrain and climate. The construction and use of large-scale facilities and equipment may easily lead to ecological damage and cost increase

Method used

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  • Preparation method of functionalized graphene roll hydrovoltaic PN junction
  • Preparation method of functionalized graphene roll hydrovoltaic PN junction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) disperse 100mg graphene oxide in water, add 6g sodium hydroxide and 5g monochloroacetic acid, ultrasonic 3h, obtain carboxylated graphene; disperse 100mg graphene oxide in 100mLDMF, add 15g ethylenediamine and 5g Cyclohexylcarboimide was reacted at 120°C for 48h to obtain aminated graphene.

[0029] (2) Carboxylated graphene and aminated graphene were respectively dispersed in ethanol to obtain a slurry, and the concentration of carboxylated graphene and aminated graphene was 4 mg / mL.

[0030] (3) Heating the prepared carboxylated graphene and aminated graphene-graphene solution, and putting the graphene oxide solution into liquid nitrogen to cool after boiling until the solution is completely frozen, and then freezing it in situ Dry to obtain carboxylated graphene rolls and aminated graphene rolls.

[0031] (4) Two graphene oxide layers are coated on the base polyester resin film, the electrode width is 1cm, the electrode length is 20cm, and the interval between t...

Embodiment 2

[0035] (1) Disperse 100mg of single-sided selective graphene oxide in water, add 6g of sodium hydroxide and 5g of monochloroacetic acid, and ultrasonicate for 3h to obtain carboxylated graphene; disperse 100mg of single-sided selective graphene oxide in 100mLDMF, Add 15g of ethylenediamine and 5g of dicyclohexylcarboimide and react at 120°C for 48h to obtain aminated graphene.

[0036] (2) Carboxylated graphene and aminated graphene were respectively dispersed in ethanol to obtain a slurry, and the concentration of carboxylated graphene and aminated graphene was 4 mg / mL.

[0037] (3) Heating the prepared carboxylated graphene and aminated graphene-graphene solution, and putting the graphene oxide solution into liquid nitrogen to cool after boiling until the solution is completely frozen, and then freezing it in situ Dry to obtain carboxylated graphene rolls and aminated graphene rolls.

[0038] (4) Two single-sided selective graphene oxide layers are coated on the base polyes...

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Abstract

The invention provides a preparation method of a functionalized graphene roll hydrovoltaic PN junction. The method comprises: respectively carrying out cold quenching on carboxylated graphene and aminated graphene to obtain a carboxylated graphene roll and an aminated graphene roll; and then, respectively coating carboxylated graphene roll slurry and aminated graphene roll slurry on the upper halfpart and the lower half part of one surface, provided with the upper electrode and the lower electrode, of a substrate, and carrying out drying to obtain the functionalized graphene roll hydrovoltaicPN junction. The functionalized graphene roll hydrovoltaic PN junction prepared by the method can absorb moisture in a humid environment to form a built-in electric field similar to a p-n junction ina solar cell, so that electric energy is generated in an external circuit, and the power generation mode is green, environment-friendly and stable and can be used for a humidity sensor or moisture power generation.

Description

technical field [0001] The invention relates to the field of preparation of moisture power generation devices, in particular to a preparation method of functionalized graphene-rolled hydrovoltaic PN junctions. Background technique [0002] Water is closely related to energy and maintains the energy cycle of the earth system, the temperature balance of organisms, and is a natural energy absorber, energy storage, transducer and energy transmitter. Nearly 70% of the energy from solar radiation reaching the surface is absorbed by water, and the annual average power of water absorbing and releasing energy on the earth is as high as 60 trillion kilowatts, which is 3 orders of magnitude higher than the average annual energy consumption of all human beings. The traditional water energy utilization model is greatly restricted by natural conditions and is easily affected by external factors such as terrain and climate. The construction and use of large-scale facilities and equipment m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N3/00C09D1/00C09D7/61
CPCH02N3/00C09D1/00C09D7/61
Inventor 苗中正
Owner YANCHENG TEACHERS UNIV
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