Experimental Investigation on Graphene Oxide/SrCl2·6H2O Modified CaCl2·6H2O and the Resulting Thermal Performances

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	Experimental Investigation on Graphene Oxide/SrCl2·6H2O Modified CaCl2·6H2O and the Resulting Thermal Performances
	Jin, Z.; Tian, Y.; Xu, X.; Cui, H.; Tang, W.; Yun, Y.; Sun, G.
	2018-08-22
Source Publication	Materials
ISSN	1996-1944
Pages	1507-1507
Abstract	Although the inorganic salt hydrate phase change materials (PCMs) such as CaCl2·6H2O have promising potential for thermal energy storage in building application, the issue of supercooling has restricted their practical application. In this study, graphene oxide (GO) and SrCl2·6H2O as binary nucleation agents were used to modify CaCl2·6H2O and reduce its supercooling degree. Compared with pure CaCl2·6H2O, the incorporation of graphene oxide (GO)/SrCl2·6H2O reduced the supercooling degree to 0.3 °C significantly. In addition, the supercooling degree of modified CaCl2·6H2O after 200 thermal cycles was still much lower than that of non-modified CaCl2·6H2O. From the results of differential scanning calorimetry (DSC), the latent heat value and phase change temperature of the modified CaCl2·6H2O were 207.88 J/g and 27.6 °C, respectively. Aluminum capsules were used to encapsulate the modified PCM and placed inside the composite wallboard. The thermal performances of the composite wallboard with modified PCM were investigated using infrared thermography. Experimental results showed that the average temperature difference between the top and bottom surfaces of modified CaCl2·6H2O/wallboard composite after 1 h heating was kept around 15.8 °C, while it was 4.9 °C for the control wallboard. The above test results proved that the modified CaCl2·6H2O demonstrated good thermal performance and can be used in buildings to maintain thermal comfort.
Keyword	phase change material supercooling graphene oxide SrCl2·6H2O CaCl2·6H2O thermal performance
URL	View the original
Language	英語English
The Source to Article	PB_Publication
PUB ID	40006
Document Type	Journal article
Collection	University of Macau
Corresponding Author	Cui, H.
Recommended Citation GB/T 7714	Jin, Z.,Tian, Y.,Xu, X.,et al. Experimental Investigation on Graphene Oxide/SrCl2·6H2O Modified CaCl2·6H2O and the Resulting Thermal Performances[J]. Materials, 2018, 1507-1507.
APA	Jin, Z.., Tian, Y.., Xu, X.., Cui, H.., Tang, W.., Yun, Y.., & Sun, G. (2018). Experimental Investigation on Graphene Oxide/SrCl2·6H2O Modified CaCl2·6H2O and the Resulting Thermal Performances. Materials, 1507-1507.
MLA	Jin, Z.,et al."Experimental Investigation on Graphene Oxide/SrCl2·6H2O Modified CaCl2·6H2O and the Resulting Thermal Performances".Materials (2018):1507-1507.

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