News Column

New Minerals Study Findings Reported from Dalian Institute of Chemical Physics

February 14, 2014



By a News Reporter-Staff News Editor at Energy Weekly News -- Research findings on Minerals are discussed in a new report. According to news reporting originating from Dalian, People's Republic of China, by VerticalNews correspondents, research stated, "In this study, CaCl2 center dot 6H(2)O/expanded graphite (EG) composite was prepared as a novel form-stable composite phase change material (PCM) through vacuum impregnation method. CaCl2 center dot 6H(2)O used as the PCM was dispersed by surfactant and then, was absorbed into the porous structure of the EG."

Our news editors obtained a quote from the research from the Dalian Institute of Chemical Physics, "The surfactant was used to enhance the bonding energy between CaCl2 center dot 6H(2)O and EG, which fulfilled the composites with good sealing performance and limited the leakage of the inside CaCl2 center dot 6H(2)O. Differential scanning calorimetry and thermal gravimetric analysis show that all the composite PCMs possess good thermal energy storage behavior and thermal stability. Thermal conductivity measurement displays that the conductivities of the samples have been significantly improved due to the highly thermal conductive EG. The thermal conductivity of the sample including 50 mass% CaCl2 center dot 6H(2)O (8.796 W m(-1) K-1) is 14 times as that of pure CaCl2 center dot 6H(2)O (0.596 W m(-1) K-1)."

According to the news editors, the research concluded: "Therefore, the obtained composite PCMs are promising for thermal energy storage applications."

For more information on this research see: CaCl2 center dot 6H(2)O/Expanded graphite composite as form-stable phase change materials for thermal energy storage. Journal of Thermal Analysis and Calorimetry, 2014;115(1):111-117. Journal of Thermal Analysis and Calorimetry can be contacted at: Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands. (Springer - www.springer.com; Journal of Thermal Analysis and Calorimetry - www.springerlink.com/content/1388-6150/)

The news editors report that additional information may be obtained by contacting Z.J. Duan, Chinese Academy Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, People's Republic of China. Additional authors for this research include H.Z. Zhang, L.X. Sun, Z. Cao, F. Xu, Y.J. Zou, H.L. Chu, S.J. Qiu, C.L. Xiang and H.Y. Zhou.

Keywords for this news article include: Asia, Dalian, Carbon, Graphite, Minerals, Nanotechnology, Emerging Technologies, Phase Change Material, Thermal Energy Storage, People's Republic of China

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Source: Energy Weekly News


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