Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 25, Pages 13978-13987Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202103186
Keywords
energy storage; hybrid materials; phase change materials; phase transitions; self-cleaning
Categories
Funding
- National Natural Science Foundation of China [51906252]
- Natural Science Foundation of Jiangsu Province [BK20190632]
- China Postdoctoral Science Foundation [2019M661980]
Ask authors/readers for more resources
A hybrid polymer containing siloxyl functional groups was synthesized and used to encapsulate phase change materials (PCMs) under mild hypercrosslinking conditions. The presence of this polymer allowed for high encapsulation rates and thermal conductivity enhancement, along with a unique self-cleaning property in the composite material. Excitingly, a 600% increase in thermal conductivity and 93.7% light-to-thermal conversion efficiency were achieved without leakage, demonstrating the potential of this novel PCM encapsulation protocol.
In this work, an organic/inorganic hybrid polymer containing siloxyl functional groups was synthesized and applied to encapsulate phase change materials (PCMs). Owing to the mild conditions of the hypercrosslinking reaction, which only requires the addition of a catalytic amount of aqueous alkaline solution, both organic and inorganic PCMs are tolerated. It is noteworthy that the initial homogeneous state of the reaction mixture allowed the ultimate encapsulation rate of the PCMs and the uniform blending of the third nano-additives with the aim of thermal conductivity enhancement. Further study reveals that the presence of this hybrid hydrophobic polymer in a phase change composite endows the latter with a unique self-cleaning property. This novel PCM encapsulation protocol is suitable for nanoparticles including carbon-based nanomaterials, metal oxide nanoparticles, and inorganic oxide nanoparticles. A thermal conductivity enhancement of 600 % was achieved along with 93.7 % light-to-thermal conversion efficiency with a latent heat of 180 J g(-1) without leakage.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available