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Phase change energy storage material based on MOFs and preparation method thereof

A technology of phase change energy storage material and inorganic phase change material, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of low force between wall material and core material, leakage of core material, etc. The effect of raw material safety and high heat storage density

Inactive Publication Date: 2018-12-14
GUILIN QINGTONG NON FERROUS METAL ARTS & CRAFTS MATERIAL DEV CO LTD
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Problems solved by technology

[0004] The study found that when traditional phase change materials use porous materials as wall materials for adsorption, the core material is prone to leakage due to the low force between the wall material and the core material

Method used

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  • Phase change energy storage material based on MOFs and preparation method thereof

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Embodiment

[0022] Preparation method of phase change energy storage materials based on MOFs:

[0023] Step 1, melting of the inorganic phase change material, mixing the inorganic phase change material with a nucleating agent with a mass fraction of 1% and heating until the inorganic phase change material is completely melted;

[0024] Step 2, take a clean and dry beaker, add MOFs materials, and dry in an oven at 110°C for 30 minutes;

[0025] Step 3, add the dried MOFs material obtained in step 2 to the molten inorganic phase change material obtained in step 1, and perform ultrasonic mixing for 10 min to mix the inorganic phase change material and MOFs material evenly; put the mixed sample at 70 °C Vacuum oven, vacuum adsorption for 8 hours, during which every 2 hours, the sample was taken out for magnetic stirring to promote the full adsorption of MOFs materials to phase change materials;

[0026] In step 4, the sample is taken out and naturally cooled to room temperature to obtain the...

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Abstract

The invention discloses a phase change energy storage material based on MOFs. The phase change energy storage material based on MOFs is formed by using an inorganic phase change material as a core material and a MOFs material as a wall material. A preparation method of the phase change energy storage material based on MOFs comprises the steps of 1) melting of the inorganic phase change material; 2) a process of using the MOFs material to adsorb the inorganic phase change material; and 3) a process of taking out a product after vacuum adsorption. The phase change energy storage material based on MOFs has the advantages that 1) the heat response speed is high and the heat conductivity is high; 2) the heat storage density is large; 3) the phase change material adsorption performance is good and the phase change material is uneasy to leak; and 4) raw materials are safe, nontoxic and non-corrosive, the preparation process is simple, and the cost is low. Therefore, the phase change energy storage material based on MOFs has the advantages that the heat conductivity and stability are better, the energy utilization efficiency is enhanced, and broad application prospect is realized.

Description

technical field [0001] The invention relates to the technical field of phase change materials in the technical field of preparation or chemical processing of organic polymer compounds, in particular to a phase change energy storage material based on MOFs and a preparation method thereof. technical background [0002] With the development of economy and the advancement of science and technology, traditional energy is being consumed at an alarming rate, and human beings are facing unprecedented energy shortages. There are two basic ways to solve this problem: one is to develop renewable energy; the other is to improve energy efficiency. Therefore, energy storage is particularly important. Thermal energy storage systems offer possibilities for energy storage, and latent heat storage is the most efficient way to store thermal energy. Phase change material (Phase Change Material, PCM) is a material that uses the heat absorption and heat release characteristics of substances dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/063
Inventor 阳家盛
Owner GUILIN QINGTONG NON FERROUS METAL ARTS & CRAFTS MATERIAL DEV CO LTD
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