A kind of wet gas generator and its preparation method

A generator and moisture technology, applied in generators/motors, generators that convert kinetic energy into electrical energy, electrical components, etc., can solve problems such as low output power density, achieve high power output density, and be easy to process and manufacture in large quantities. , easy-to-prepare effects

Active Publication Date: 2020-08-28
TSINGHUA UNIV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing moisture power generation methods have low output power density, and there are few reports on the mechanical flexibility of devices, and there are few reports on moisture power generation in the self-powered and wearable fields.

Method used

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  • A kind of wet gas generator and its preparation method
  • A kind of wet gas generator and its preparation method
  • A kind of wet gas generator and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a kind of moisture generator, its structure is as follows figure 1 shown. The moisture generator includes a substrate 1, a first electrode 2, a nanowire layer 3, and a second electrode 4, wherein:

[0047] The substrate is a flexible substrate made of polyethylene terephthalate, with a size of 1 cm x 1 cm and a thickness of 50 microns;

[0048] The first electrode is layered, which is an indium tin oxide film with a thickness of 300 nanometers;

[0049] The material of the nanowire layer is titanium dioxide nanowires, its diameter is distributed in 70-300 nanometers, and the thickness of the nanowire layer is 10 microns; the nanowires cross each other to form a titanium dioxide nanowire network structure; the morphology of the titanium dioxide nanowires and the cross section of the coating Respectively as figure 2 and image 3 Shown; TiO nanowire network structure has good hydrophilicity, and the wetting angle with water is 13 degrees, such...

Embodiment 2

[0065] This embodiment provides a kind of moisture generator, its structure is as follows figure 1 shown. The moisture generator includes a substrate 1, a first electrode 2, a nanowire layer 3, and a second electrode 4, wherein:

[0066] The substrate is glass with a thickness of 1 mm and its dimensions are 1 cm x 1 cm;

[0067] The first electrode is layered, which is fluorine-doped tin oxide, and has a thickness of 300 nanometers;

[0068] The material of the nanowire layer is titanium dioxide nanowires, the diameter of which is distributed in the range of 70-300 nanometers, and the thickness of the nanowire layer is 10 microns;

[0069] The second electrode is layered, made of aluminum, and has a thickness of 100 nanometers.

[0070] The wet gas generator is prepared according to the following steps:

[0071] forming a first electrode on the substrate by magnetron sputtering;

[0072] Electrophoretic deposition is used to form a nanowire layer on the surface of the fi...

Embodiment 3

[0085] The moisture generator of Example 1 can be pasted near the nasal cavity or oral cavity of the human body for real-time monitoring of the respiratory rate of the human body. The output voltage of the moisture generator is related to the respiratory frequency and respiratory intensity, and the output voltage can be used to characterize the human respiratory rate.

[0086] Stick the moisture generator in Example 1 as a sensor at a distance of 8 mm from the nasal cavity, and the voltage output at both ends of the sensor changes as follows during the breathing process of a healthy human body. Figure 11 shown. It can be seen from this that the frequency of the voltage pulse signal output by the sensor is consistent with the breathing frequency of the human body, and the voltage pulses can be clearly separated. The voltage signal generated by the sensor itself can be used to characterize the breathing condition, and no external power supply is required.

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Abstract

The present invention relates to a moisture power generator and a preparation method therefor. The moisture power generator comprises a substrate, a first electrode, a nanowire layer and a second electrode arranged in sequence, wherein the nanowire layer is arranged between the first electrode and the second electrode and is formed from randomly distributed nanowires. The present invention further provides a preparation method for the above-mentioned moisture power generator. The moisture power generator provided by the present invention uses a network structure formed from the nanowires, wherein the structure has a good hydrophilicity, and wherein a large number of nanometer gaps contained therein can facilitate moisture diffusion, so that the moisture power generator can have a relatively high power output density. When the substrate of the moisture power generator is made of a flexible material, in combination with the nanowire layer network structure with a high flexibility, the moisture power generator also a has good mechanical flexibility, can act as a humidity sensor to detect the environmental humidity, and can also be pasted onto the skin of a human body to monitor the respiration state of the human body in real time, or can act as a wearable electronic touch screen, and can also be used for driving an alcohol sensor.

Description

technical field [0001] The invention relates to a wet gas generator and a preparation method thereof, belonging to the technical field of new energy power generation. Background technique [0002] In recent years, with the gradual aggravation of energy crisis and environmental problems, the research and application of clean and renewable energy devices have attracted global attention. Among them, solar energy, thermal energy, mechanical vibration energy, wind energy, sound wave energy, bio-energy, etc. have been used to generate electricity one after another, and have broad application prospects in self-powered systems and wearable fields. [0003] However, the above-mentioned energy forms still have many limitations in application. For example, solar power generation devices cannot work when there is no light; mechanical vibration may also reduce the reliability of the system when it is used to generate electricity. can not work. [0004] Recently, moisture as a resource ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/12H02N3/00H01M4/13H01L45/00
CPCB82Y40/00H02N3/00B82Y15/00H02N11/002
Inventor 刘磊沈道智邹贵生周运鸿沃尔特·W·杜利肖明
Owner TSINGHUA UNIV
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