Preparation method for carbon-containing material metal organic framework-based composite phase change material

Abstract

The invention discloses a preparation method for a carbon-containing material metal organic framework-based composite phase change material and belongs to the field of nano composite materials and composite phase change materials. The preparation method comprises the following steps: carrying out in-situ growth of MOFs particles on a polyvinylpyrrolidone (PVP)-modified carbon material surface by adopting a hydrothermal method to prepare a carbon-containing material metal organic framework-based porous carrier material; then, dispersing a carbon material @MOFs porous carrier material into a prepared solution containing a phase change core material by adopting a solution dipping method; adsorbing a phase change core material by utilizing an oversized specific surface area of the metal organic framework material and a nao duct structure; and drying at a temperature higher than the phase change material to obtain the carbon-containing material metal organic framework-based composite phase change material. The material can be used for improving the heat transfer performances of the composite phase-change material, effectively preventing core material leakage, and has the advantages of wide core material selection range. The composite phase change material prepared by the method provided by the invention is excellent in heat transfer performance, good in circulating stability, simple in process and suitable for large-scale production.

Description

technical field

[0001] The invention belongs to the field of composite phase-change materials, and in particular relates to a preparation method of a carbon-containing metal-organic framework-based composite phase-change material. Background technique

[0002] With the rapid development of global industry, problems such as the depletion of mineral energy and environmental pollution have become increasingly prominent, and human demand for energy has increased. Humans have begun to realize the importance and inevitability of finding new energy sources. Renewable energy sources such as solar energy, wind energy, biomass energy, and ocean energy have been developed by human beings. However, these energy sources have shortcomings such as dispersion, intermittency, and volatility, resulting in low effective utilization rates. Energy storage technology can store discontinuous and highly random energy in an appropriate medium and release it when needed to achieve efficient use of e...

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