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Metal ion/zirconium phosphate aerogel, preparation method thereof and composite phase change energy storage material

A metal ion, zirconium phosphate technology, applied in aerogel preparation, heat exchange materials, chemical instruments and methods, etc., can solve the problems of insufficient mechanical strength, poor compatibility and collapse of composite phase change materials

Active Publication Date: 2020-10-30
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fly ash has the characteristics of small particle diameter, and a certain amount of thermal conductivity improver needs to be added when preparing phase change materials, but the thermal conductivity improver has poor compatibility in composite phase change materials, resulting in the mechanical properties of composite phase change materials Insufficient strength, so it is easy to pulverize or collapse under certain external force conditions, which is not conducive to its wide application

Method used

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  • Metal ion/zirconium phosphate aerogel, preparation method thereof and composite phase change energy storage material
  • Metal ion/zirconium phosphate aerogel, preparation method thereof and composite phase change energy storage material
  • Metal ion/zirconium phosphate aerogel, preparation method thereof and composite phase change energy storage material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1. Add 1.0g of unstripped zirconium phosphate powder (thickness 100-200nm, sheet diameter 1-4μm) into 500mL Tris solution with a concentration of 1.5mg / mL, shake vigorously to completely dissolve zirconium phosphate;

[0050] 2. The prepared zirconium phosphate solution was subjected to 150w 45kHz ultrasonic treatment for 2 hours, during which time it was taken out and shaken for 5 minutes every 0.5 hours, and after the ultrasonic treatment was completed, it was allowed to stand at room temperature for 12 hours;

[0051] 3. Pour the solution after standing still into a container for freeze-drying treatment for 48 hours at a freezing temperature of -40°C to obtain zirconium phosphate airgel;

[0052] 4. Immerse the zirconium phosphate airgel in 0.1 mg / mL copper sulfate solution, and let it stand at room temperature for 24 hours;

[0053] 5. Take out the zirconium phosphate airgel treated with metal ions, and carry out vacuum freeze-drying treatment for 48 hours at a free...

Embodiment 2

[0060] 1. Add 1.0g of unexfoliated zirconium phosphate powder (100-200nm in thickness, 1-4μm in diameter) into 500ml of Tris solution with a concentration of 1.5mg / mL, and shake vigorously to completely dissolve the zirconium phosphate;

[0061] 2. The prepared zirconium phosphate solution was subjected to 150w 45kHz ultrasonic treatment for 2 hours, during which time it was taken out and shaken for 5 minutes every 0.5 hours, and after the ultrasonic treatment was completed, it was allowed to stand at room temperature for 12 hours;

[0062] 3. Pour the solution after standing still into a container for freeze-drying treatment for 48 hours at a freezing temperature of -40°C to obtain zirconium phosphate airgel;

[0063] 4. Immerse the zirconium phosphate airgel in 0.1 mg / mL zinc sulfate solution, and let it stand at room temperature for 24 hours;

[0064] 5. Take out the zirconium phosphate airgel after the metal ion treatment, and carry out vacuum freeze-drying treatment for 4...

Embodiment 3

[0068] 1. Add 1.0g of unexfoliated zirconium phosphate powder (thickness 100-200nm, sheet diameter 1-4μm) into 500ml Tris solution with a concentration of 1.5mg / ml, shake vigorously to completely dissolve zirconium phosphate;

[0069] 2. The prepared zirconium phosphate solution was subjected to 150w 45kHz ultrasonic treatment for 2 hours, during which time it was taken out and shaken for 5 minutes every 0.5 hours, and after the ultrasonic treatment was completed, it was allowed to stand at room temperature for 12 hours;

[0070] 3. Pour the solution after standing still into a container for freeze-drying treatment for 48 hours at a freezing temperature of -40°C to obtain zirconium phosphate airgel;

[0071] 4. Immerse the zirconium phosphate airgel in 0.1 mg / mL nickel sulfate solution, and let it stand at room temperature for 24 hours;

[0072] 5. Take out the zirconium phosphate airgel treated with metal ions, and carry out vacuum freeze-drying treatment for 48 hours at a fr...

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Abstract

The invention relates to the technical field of phase change materials, in particular to a metal ion / zirconium phosphate aerogel, a preparation method thereof and a composite phase change energy storage material. According to the metal ion / zirconium phosphate aerogel, a sacrificial metal ion ligand enhanced coordination bond is formed between zirconium phosphate nanosheets in the metal ion / zirconium phosphate aerogel, and the interaction between the zirconium phosphate nanosheets is increased, so that the mechanical strength of a composite phase change material is improved; a large number of acid points and Lewis acid points exist between zirconium phosphate nanosheet layers, polymer crosslinking and carbonization can be catalyzed during high-temperature combustion, in addition, zirconiumphosphate nanosheets can also play a physical barrier role, and the zirconium phosphate nanosheets and the polymer crosslinking and carbonization can jointly prevent diffusion of oxygen and heat, so that the composite phase change material has excellent flame retardant property. Zirconium phosphate aerogel in the metal ion / zirconium phosphate aerogel can load more phase change materials, and the energy storage density is improved.

Description

technical field [0001] The invention relates to the technical field of phase change materials, in particular to a metal ion / zirconium phosphate airgel, a preparation method thereof and a composite phase change energy storage material. Background technique [0002] With the rapid growth of the global economy and a large population, the consumption of fossil fuels is increasing rapidly. At the same time, the energy utilization rate of fossil fuels is still relatively low, resulting in a large amount of energy waste and greenhouse gas emissions. Utilization efficiency is one of the effective ways to reduce energy consumption. Therefore, a large number of researchers have devoted their energy to improving energy efficiency. Phase change material (Phase change material, PCM) is a good latent heat energy storage material, which has the characteristics of high energy storage density and controllable phase change temperature. It can be released under certain conditions, thereby im...

Claims

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Application Information

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IPC IPC(8): B01J13/00C09K5/06
CPCB01J13/0091C09K5/063
Inventor 李伟杰盛鑫鑫林鹏程陈颖张力
Owner GUANGDONG UNIV OF TECH
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