Study on the synthesis and thermal properties of magnesium chloride hexahydrate–magnesium sulfate heptahydrate–activated carbon phase change heat storage materials

doi:10.1007/s00339-021-04675-7

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	Study on the synthesis and thermal properties of magnesium chloride hexahydrate–magnesium sulfate heptahydrate–activated carbon phase change heat storage materials
	Yang, Xiaotian 2; Shen, Liangyu 2; Yang, Qiangbin 1; Wang, Kezhen 2; Wang, Cailong 2
刊名	Applied Physics A: Materials Science and Processing
	2021-08-01
卷号	127 期号:8
关键词	Activated carbon Chlorine compounds Enthalpy Heat storage Heating Hydration Magnesium compounds Phase separation Salts Stability Storage (materials) Sulfur compounds Supercooling Thermal cycling Thermodynamic stability Application prospect Composite phase change materials Phase change heat storage materials Phase change heat storages Phase transition enthalpy Storage performance Thermal cycle stabilities Thermochemical reactions
ISSN号	09478396
DOI	10.1007/s00339-021-04675-7
英文摘要	As the phase change heat storage materials, the hydrated salts have good application prospects. However, the supercooling and phase separation of hydrated salts are two key factors, which affect their thermal properties and thermal stability. Moreover, the thermochemical reaction of hydrated salts below 130 °C is very important for its phase-change heat storage performance. A new composite phase-change material (CPCM) with good heat storage performance and thermal stability composed of magnesium chloride hexahydrate (MCH), magnesium sulfate heptahydrate (MSH), and activated carbon (AC) was synthesized. The effects of AC on supercooling, phase separation, and phase transition temperature of CPCM were investigated. The results showed that phase separation and supercooling were completely eliminated in CPCM with 3.0 wt% AC, and the content of AC had a significant effect on thermal cycle stability, heat storage performance, and enthalpy balance. CPCM has good thermal cycle stability. CPCM with the content of 3.0 wt % AC possessed the phase transition temperature of 90.21°C and the phase transition enthalpy of 156.14 kJ kg−1, which is very suitable for household heat storage. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	Springer Science and Business Media Deutschland GmbH
WOS记录号	WOS:000691426000001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150909]
专题	学报编辑部能源与动力工程学院
作者单位	1.Chongqing Key Laboratory of Environmental Materials and Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing; 402160, China 2.College of Materials Science and Engineering, State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Gansu Province, Lanzhou University of Technology, Langongping road 287, Lanzhou City; 730050, China;
推荐引用方式 GB/T 7714	Yang, Xiaotian,Shen, Liangyu,Yang, Qiangbin,et al. Study on the synthesis and thermal properties of magnesium chloride hexahydrate–magnesium sulfate heptahydrate–activated carbon phase change heat storage materials[J]. Applied Physics A: Materials Science and Processing,2021,127(8).
APA	Yang, Xiaotian,Shen, Liangyu,Yang, Qiangbin,Wang, Kezhen,&Wang, Cailong.(2021).Study on the synthesis and thermal properties of magnesium chloride hexahydrate–magnesium sulfate heptahydrate–activated carbon phase change heat storage materials.Applied Physics A: Materials Science and Processing,127(8).
MLA	Yang, Xiaotian,et al."Study on the synthesis and thermal properties of magnesium chloride hexahydrate–magnesium sulfate heptahydrate–activated carbon phase change heat storage materials".Applied Physics A: Materials Science and Processing 127.8(2021).