Form-stable phase change materials enhanced photothermic conversion and thermal conductivity by Ag-expanded graphite

doi:10.1016/j.est.2022.105060

	Form-stable phase change materials enhanced photothermic conversion and thermal conductivity by Ag-expanded graphite
	Luo, Wenxing 2; Hu, Xiaowu 2; Che, Yinhui 3; Zu, Shuai 3; Li, Qinglin 4; Jiang, Xiongxin 2; Liu, Dingjun 1
刊名	Journal of Energy Storage
	2022-08-25
卷号	52
关键词	Blending Energy conversion Epoxy resins Graphite Heat storage Metal nanoparticles Phase change materials Solar energy Storage (materials) Thermal conductivity Ag nanoparticle modification EP matrix Expanded graphite Form stable phase change material Heat absorption Leakage problems Photothermics Solar energy conversion capability Solar energy conversions Solar energy storages
DOI	10.1016/j.est.2022.105060
英文摘要	Phase change materials (PCMs), which exhibit significant capacity of latent heat absorption and release during the phase change process, have been promisingly used for solar energy conversion and storage. However, the application of organic PCMs for solar energy storage remains a great challenge owing to their low thermal conductivity and liquid leakage problem. In this work, a form-stable PCM with polyethylene glycol (PEG) and epoxy resin (EP) was prepared by melt blending (the mass ratio is 1:1). The experimental results indicated that the leakage problem of PEG was solved by the cross-linking of the molecular chains of PEG and EP. Meanwhile, in order to improve the solar energy conversion capability and thermal conductivity, an extremely low loading (4 wt%) of expanded graphite (EG) modified with Ag nanoparticle was added into the PEG/EP matrix. The results suggested that Ag nanoparticles were uniformly dispersed by electroless silver plating in the surface of EG, and the electroless modified EG was evenly distributed in the PEG/EP matrix. Moreover, the composite fillers exhibited prominent solar energy conversion capability (90.7 %) and higher thermal conductivity (121 %). Therefore, this novel composite has favorable potential in practical applications of solar energy storage. © 2022 Elsevier Ltd
WOS研究方向	Energy & Fuels
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000836431500008
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159131]
专题	材料科学与工程学院
作者单位	1.Institute for Advanced Study, Nanchang University, Nanchang; 330031, China 2.School of Mechanical & Electrical Engineering, Nanchang University, Nanchang; 330031, China; 3.Suzhou Nucl Power Res Inst Co Ltd., Shenzhen; 518120, China; 4.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Luo, Wenxing,Hu, Xiaowu,Che, Yinhui,et al. Form-stable phase change materials enhanced photothermic conversion and thermal conductivity by Ag-expanded graphite[J]. Journal of Energy Storage,2022,52.
APA	Luo, Wenxing.,Hu, Xiaowu.,Che, Yinhui.,Zu, Shuai.,Li, Qinglin.,...&Liu, Dingjun.(2022).Form-stable phase change materials enhanced photothermic conversion and thermal conductivity by Ag-expanded graphite.Journal of Energy Storage,52.
MLA	Luo, Wenxing,et al."Form-stable phase change materials enhanced photothermic conversion and thermal conductivity by Ag-expanded graphite".Journal of Energy Storage 52(2022).