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LDHs (Layered Double Hydroxides) based water evaporation generator and preparation method thereof

A water evaporation and device technology, which is applied in the field of LDHs-based water evaporation power generation devices and preparation, to achieve the effect of expanding the range of materials and making raw materials easy to prepare

Active Publication Date: 2018-07-17
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, LDHs are mainly used as catalyst carriers or drug carriers. So far, there are no reports on the application of LDHs to water evaporation power generation devices.

Method used

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  • LDHs (Layered Double Hydroxides) based water evaporation generator and preparation method thereof
  • LDHs (Layered Double Hydroxides) based water evaporation generator and preparation method thereof
  • LDHs (Layered Double Hydroxides) based water evaporation generator and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0021] The LDHs-based water evaporation power generation device of the present invention has a base equipped with tabs and a coating on the base, and the coating is LDHs.

[0022] The preparation method of the LDHs-based water evaporation power generation device of the present invention is carried out as follows:

[0023] a. Preparation of LDHs solid powder:

[0024] Prepare 80ml of nickel nitrate, aluminum nitrate and urea mixed solution, wherein Ni 2+ 、Al 3+ and urea concentration are respectively 10mmol / L, 5 mmol / L and 20mmol / L, then put into a 100ml autoclave and react for 72h at 150 degrees to obtain a precipitate (Ni 2 Al-LDHs);

[0025] After the reaction kettle is cooled to room temperature, the kettle is opened, and the resulting precipitate is filtered, washed and dried to obtain Ni 2 Al-LDHs solid powder;

[0026] Ni obtained in embodiment 1 of the present invention 2 The XRD spectrum of Al-LDHs is as follows figure 1 shown;

[0027] b. Ni 2 Al-LDHs solid ...

Embodiment 2

[0032] A water evaporation power generation device based on LDHs of the present invention is the same as that in Embodiment 1.

[0033] The preparation method of the LDHs-based water evaporation power generation device of the present invention is carried out as follows:

[0034] a. Preparation of LDHs solid powder:

[0035] Prepare a mixed solution of 20ml nickel nitrate and aluminum nitrate, wherein Ni 2+ and Al 3+ The concentration is 3.5mol / L, this solution is marked as solution Ⅰ; prepare 200ml of 2.0mol / L NaOH solution, and this solution is marked as solution Ⅱ; prepare 0.1mol / L NaNO 3 Solution 100ml, this solution is marked as solution Ⅲ;

[0036] Put solution Ⅲ into a 1000ml large beaker, then add solution Ⅰ and solution Ⅱ into the beaker drop by drop with a peristaltic pump, and keep stirring with a magnet, monitor the pH of the solution in the beaker with a pH meter, and adjust the two peristaltic pumps The dropping speed keeps the pH of the solution in the beaker...

Embodiment 3

[0044] A water evaporation power generation device based on LDHs of the present invention is the same as that in Embodiment 1.

[0045] The preparation method of the LDHs-based water evaporation power generation device of the present invention is carried out as follows:

[0046] a. Preparation of LDHs solid powder:

[0047] Prepare 80ml of mixed solution of nickel chloride, aluminum chloride and urea, wherein Ni 2+ 、Al 3+ and urea concentrations were 64mmol / L, 64 mmol / L and 140mmol / L, respectively, and then put into a 100ml high-pressure reactor and reacted at 300 degrees for 24h to obtain precipitates (NiAl-LDHs);

[0048] After the reaction kettle is cooled to room temperature, the kettle is opened, and the formed precipitate is filtered, washed and dried to obtain NiAl-LDHs solid powder;

[0049] b. Uniformly disperse NiAl-LDHs solid powder in a solvent to form NiAl-LDHs liquid;

[0050] c. Coating the NiAl-LDHs liquid on the quartz glass sheet equipped with lugs at roo...

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Abstract

The invention discloses an LDHs (Layered Double Hydroxides) based water evaporation generator, the LDHs based water evaporation generator is provided with a substrate with a tab, a coating layer is arranged on the substrate, and the coating is LDHs. A preparation method is conducted according to the following steps: preparing an LDHs solid powder; evenly dispersing the LDHs solid powder into a liquid to form an LDHs liquid; coating the LDHs liquid on the substrate with the tab at the room temperature; drying, and enabling the LDHs liquid to form a film evenly. The LDHs based water evaporationgenerator has the advantages that the raw material is convenient to prepare and can be coated at the room temperature, the range of the material for preparing the substrate is expanded, both the hardsubstrate (like a quartz glass sheet) and the flexible substrate (like a plastic sheet, a thin film or a fabric) can be used, and a foundation is laid for the creation of a self-driven wearable device.

Description

technical field [0001] The invention relates to a water evaporation power generation device and a preparation method, in particular to an LDHs-based water evaporation power generation device and a preparation method. Background technique [0002] Converting ambient energy into electrical energy is an essential part of building low-cost, green, self-driving devices. Water evaporation is a spontaneous process in nature every moment, and water evaporation power generation devices that use water evaporation to generate electricity have come out. The structure of the existing water evaporation power generation device is provided with a base equipped with tabs, and a coating connected to the tabs is arranged on the base. The coating part of the water evaporation power generation device is immersed in water, and the water evaporation is used as the driving force to generate a flowing potential in the coating, and then generate electrical energy (voltage and current) between the tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/00C01F7/00C01G49/00C03C17/22C09D1/00
CPCC01G49/009C01G53/006C03C17/22C09D1/00C01P2002/72C01F7/785
Inventor 曲江英高峰李长平
Owner DONGGUAN UNIV OF TECH
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