Issue 113, 2016, Issue in Progress

Sepiolite supported stearic acid composites for thermal energy storage

Abstract

In this paper, novel composite phase change materials (PCMs) were prepared by absorbing stearic acid (SA) into sepiolite (α-sepiolite, β-sepiolite) via a vacuum impregnation method. The microstructures, thermal properties and thermal reliability of the composite PCMs were characterized by SEM, TG and DSC. The results indicate that the maximum SA absorption of α-sepiolite (α-SPL) and β-sepiolite (β-SPL) could reach as high as 60% and 49%. The latent heat of α-SPL/SA and β-SPL/SA were 118.7 J g−1 and 95.8 J g−1, respectively. The thermal cyclic test indicated α-SPL/SA and β-SPL/SA composites have excellent structural stability and thermal reliability. The thermal performance of the composite PCM gypsum boards was also evaluated. The composite PCMs could have a great potential application for thermal energy storage.

Graphical abstract: Sepiolite supported stearic acid composites for thermal energy storage

Article information

Article type
Paper
Submitted
02 Sep 2016
Accepted
21 Nov 2016
First published
21 Nov 2016

RSC Adv., 2016,6, 112493-112501

Sepiolite supported stearic acid composites for thermal energy storage

Q. Shen, S. Liu, J. Ouyang and H. Yang, RSC Adv., 2016, 6, 112493 DOI: 10.1039/C6RA22015K

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