Novel composite phase change materials based on hollow carbon nanospheres supporting fatty amines with high light-to-thermal transition efficiency

doi:10.1016/j.solmat.2021.111035

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	Novel composite phase change materials based on hollow carbon nanospheres supporting fatty amines with high light-to-thermal transition efficiency
	Cao, Xiaoyin 1; Wu, Shujuan 1; Yang, Lijuan 1; Cui, Jie 1; Wang, Chengjun 1,2; Li, An 1
刊名	Solar Energy Materials and Solar Cells
	2021-06-15
卷号	225
关键词	Amines Carbon Conversion efficiency Energy efficiency Enthalpy Heat storage Light absorption Nanospheres Solar energy Thermal conductivity Composite phase change materials Fatty amines Hollow carbon nanospheres Light-to-thermal Octadecyl amine Organic phasis Phase Change Thermal Thermal conversion Thermal transitions
ISSN号	0927-0248
DOI	10.1016/j.solmat.2021.111035
英文摘要	The construction of high-performance materials with superior light-to-thermal conversion efficiency is of great importance for harvesting and utilization of solar energy. Hence, we report the creation of novel composite phase change materials (CPCMs) CPCMs by incorporating three kinds of organic phase change materials (PCMs), i.e. 1-Tetradecylamine (TDA), 1-hexadecanamine (HDA) and Octadecylamine (ODA), into hollow carbon nanospheres (HCNS) via a simple impregnation treatment for efficient light-to-thermal transition. Owing to their carbon in nature, the HCNS show better light absorption of higher than 90%. After incorporation of organic PCMs, their light absorption could still attain 62–70%, which can compete with the existing CPCMs. Beneficial from their abundant porosity and high specific surface areas, organic PCMs can be spontaneously diffused and immersed into the porous architecture of HCNS. In this way, the as-resulted CPCMs containing with TDA, HDA and ODA show high phase change enthalpy of 61.23J/g, 119.5J/g and 101.8J/g, respectively. The CPCMs also exhibit better thermal conductivity and excellent thermal stability, e.g., the enthalpy of HAD based CPCMs remains nearly unchanged even after 100 times of melting/freezing cycles. Under 1 sun irradiation, the light-to-thermal conversion efficiency of CPCMs containing with TDA, HDA and ODA were measured to be 73.04%, 74.46% and 71.74%, respectively, Thus showing great potential as a kind of promising photothermal conversion devices for solar or thermal energy storage applications. © 2021
WOS研究方向	Energy & Fuels ; Materials Science ; Physics
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000636435000005
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147729]
专题	土木工程学院石油化工学院发展规划处
作者单位	1.Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.College of Chemical Engineering Northwest Minzu University, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Lanzhou; 730030, China
推荐引用方式 GB/T 7714	Cao, Xiaoyin,Wu, Shujuan,Yang, Lijuan,et al. Novel composite phase change materials based on hollow carbon nanospheres supporting fatty amines with high light-to-thermal transition efficiency[J]. Solar Energy Materials and Solar Cells,2021,225.
APA	Cao, Xiaoyin,Wu, Shujuan,Yang, Lijuan,Cui, Jie,Wang, Chengjun,&Li, An.(2021).Novel composite phase change materials based on hollow carbon nanospheres supporting fatty amines with high light-to-thermal transition efficiency.Solar Energy Materials and Solar Cells,225.
MLA	Cao, Xiaoyin,et al."Novel composite phase change materials based on hollow carbon nanospheres supporting fatty amines with high light-to-thermal transition efficiency".Solar Energy Materials and Solar Cells 225(2021).