Lamellar-structured phase change composites based on biomass-derived carbonaceous sheets and sodium acetate trihydrate for high-efficient solar photothermal energy harvest

doi:10.1016/j.solmat.2021.111140

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 盐湖资源与化学实验室

	Lamellar-structured phase change composites based on biomass-derived carbonaceous sheets and sodium acetate trihydrate for high-efficient solar photothermal energy harvest
	Liu, Huan; Zheng, Zhiheng; Qian, Zhiqiang; Wang, Qianwei; Wu, Dezhen; Wang, Xiaodong
刊名	SOLAR ENERGY MATERIALS AND SOLAR CELLS
	2021-08-15
卷号	229
ISSN号	0927-0248
DOI	10.1016/j.solmat.2021.111140
英文摘要	Inorganic salt hydrates have a great potential for solar photothermal energy storage due to their high energy-storage density and low cost. However, there are some major drawbacks such as high supercooling degree, shape/form instability, phase segregation, and poor long-term durability found in salt hydrates. These greatly limit their practical applications. Herein, we designed and fabricated a type of eco-friendly and cost-efficient phase-change system based on sodium acetate trihydrate (SAT) as an inorganic phase change material and biomass-derived carbonaceous sheets (BDCSs) as a supporting material for high-efficient solar photothermal energy storage and shape stabilization. Derived from a biomass waste of watermelon rind, the BDCSs show some unique characteristics such as a stacking lamellar structure and a compact surface with some corrugations and ripples as well as the presence of abundant oxygen-rich groups. These can lead to a significant enhancement in photothermal conversion efficiency of solar energy when used as a supporting material for a SAT-based phase-change composite system. This type of composite system not only presents a high thermal energy capacity of 212.2 J/g and a very low supercooling degree of 0.9 degrees C, but also has a high photothermal conversion efficiency of up to 80.18% for solar energy. Moreover, the composite system exhibits high thermal conductance, good shape stability without phase segregation, and excellent thermal cycle stability for long-term solar photothermal energy storage and release. This study provides a simple and facile methodology for the development of bio-based phase-change composites for high-efficient solar energy utilization.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34362]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Liu, Huan,Zheng, Zhiheng,Qian, Zhiqiang,et al. Lamellar-structured phase change composites based on biomass-derived carbonaceous sheets and sodium acetate trihydrate for high-efficient solar photothermal energy harvest[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2021,229.
APA	Liu, Huan,Zheng, Zhiheng,Qian, Zhiqiang,Wang, Qianwei,Wu, Dezhen,&Wang, Xiaodong.(2021).Lamellar-structured phase change composites based on biomass-derived carbonaceous sheets and sodium acetate trihydrate for high-efficient solar photothermal energy harvest.SOLAR ENERGY MATERIALS AND SOLAR CELLS,229.
MLA	Liu, Huan,et al."Lamellar-structured phase change composites based on biomass-derived carbonaceous sheets and sodium acetate trihydrate for high-efficient solar photothermal energy harvest".SOLAR ENERGY MATERIALS AND SOLAR CELLS 229(2021).