Preparation and characterization of polyethylene glycol/active carbon   composites as shape-stabilized phase change materials

doi:10.1016/j.solmat.2010.09.033

CORC > 北京大学 > 化学与分子工程学院

	Preparation and characterization of polyethylene glycol/active carbon composites as shape-stabilized phase change materials
	Feng, Lili ; Zheng, Jie ; Yang, Huazhe ; Guo, Yanli ; Li, Wei ; Li, Xingguo
刊名	solar energy materials and solar cells
	2011
关键词	Shape-stabilized phase change materials Mesoporous active carbon Polyethylene glycol DIFFERENTIAL THERMAL ANALYSIS HEAT-STORAGE MATERIAL ACTIVE-CARBON ENERGY-STORAGE WATER-PURIFICATION SILICA TEMPERATURE SEPARATION COPOLYMER CATALYST
DOI	10.1016/j.solmat.2010.09.033
英文摘要	Shape-stabilized phase change materials (PCMs) composed of polyethylene glycol (PEG) and mesoporous active carbon (AC) were prepared by a blending and impregnating method. Various techniques were carried out to characterize the structural and thermal properties of the composites. Lower phase change temperatures and enthalpies were observed as the weight percentage and molecular weight of PEG was decreased. The crystallinity of PEG in the PCMs decreased with the increase in the AC content. The activation energy of the PEG phase change decreased with higher PEG weight percentages. We conclude that the phase change properties of the PEG/AC PCMs are influenced by the adsorption confinement of the PEG segments from the porous structure of AC and also the interference of AC by acting as an impurity with perfect PEG crystallization. (C) 2010 Elsevier B.V. All rights reserved.; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; SCI(E); EI; 49; ARTICLE; 2; 644-650; 95
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151140]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Feng, Lili,Zheng, Jie,Yang, Huazhe,et al. Preparation and characterization of polyethylene glycol/active carbon composites as shape-stabilized phase change materials[J]. solar energy materials and solar cells,2011.
APA	Feng, Lili,Zheng, Jie,Yang, Huazhe,Guo, Yanli,Li, Wei,&Li, Xingguo.(2011).Preparation and characterization of polyethylene glycol/active carbon composites as shape-stabilized phase change materials.solar energy materials and solar cells.
MLA	Feng, Lili,et al."Preparation and characterization of polyethylene glycol/active carbon composites as shape-stabilized phase change materials".solar energy materials and solar cells (2011).