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Issue 113, 2016, Issue in Progress
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Sepiolite supported stearic acid composites for thermal energy storage

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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

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Publication details

The article was received on 02 Sep 2016, accepted on 21 Nov 2016 and first published on 21 Nov 2016


Article type: Paper
DOI: 10.1039/C6RA22015K
RSC Adv., 2016,6, 112493-112501

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    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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