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Issue 7, 2017
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Dual-encapsulation of octadecanol in thermal/electric conductor for enhanced thermoconductivity and efficient energy storage

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Abstract

Owing to the high energy density of phase change materials, latent heat storage systems have been an effective strategy for the improvement of energy efficiency. The severe limitations of their extensive application are the potential leakage and low thermal conductivity. Herein, we developed a facile dual-encapsulation method to solve the abovementioned problems in the phase change composite composed of octadecanol, a high thermal/electrical conductive macroporous graphite foam and a thin waterborne polyurethane (WPU) film. After dual-encapsulation, the thermal conductivity of the composite was 20 times higher than that of pure phase change material (PCM) octadecanol. As a result, the composite exhibited a reduced supercooling degree and rapid thermal energy charging behaviors, as well as electro-to-heat conversion ability. This study gives a new perspective for the synergistic enhancement of both the thermal and electric conductivity of functional PCMs for thermal energy storage and conversion.

Graphical abstract: Dual-encapsulation of octadecanol in thermal/electric conductor for enhanced thermoconductivity and efficient energy storage

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Supplementary files

Article information


Submitted
30 Dec 2016
Accepted
24 Feb 2017
First published
24 Feb 2017

Mater. Chem. Front., 2017,1, 1430-1434
Article type
Research Article

Dual-encapsulation of octadecanol in thermal/electric conductor for enhanced thermoconductivity and efficient energy storage

W. Wu, R. Yao, X. Huang, R. Chen, K. Li, S. Gao and R. Zou, Mater. Chem. Front., 2017, 1, 1430 DOI: 10.1039/C6QM00381H

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