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Issue 14, 2019
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A novel shape-stabilization strategy for phase change thermal energy storage

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Abstract

Solving the mismatch between the supply and demand of energy in energy storage techniques is critical. Here, we report a novel Lewis acid catalysis induced in situ phase change material (PCM) shape-stabilization strategy to fabricate hyper-crosslinked polystyrene (HCPS) encapsulated PCMs towards the goal of highly efficient thermal energy storage. A simultaneous cross-linking and encapsulation process, enabled by a powerful FeCl3 catalyzed cross linking reaction, results in a highly efficient encapsulation rate. Thermal conductivity of the PCMs was enhanced by converting the cross-linking catalyst FeCl3 to Fe3O4 using a simple alkali treatment, by which 17% to 55% thermal conductivity enhancement was achieved compared with pure paraffin. Notably, waste polystyrene (PS) foam was demonstrated to be capable of being used as a starting material to support PCM, opening up a new avenue to utilize waste PS foam.

Graphical abstract: A novel shape-stabilization strategy for phase change thermal energy storage

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Supplementary files

Article information


Submitted
09 Feb 2019
Accepted
04 Mar 2019
First published
04 Mar 2019

J. Mater. Chem. A, 2019,7, 8194-8203
Article type
Paper

A novel shape-stabilization strategy for phase change thermal energy storage

C. Liu, Z. Xu, Y. Song, P. Lv, J. Zhao, C. Liu, Y. Huo, B. Xu, C. Zhu and Z. Rao, J. Mater. Chem. A, 2019, 7, 8194
DOI: 10.1039/C9TA01496A

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