Superhydrophobic copper foam supported phase change composites with high thermal conductivity for energy storage

doi:10.1590/1980-5373-MR-2017-0813

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Superhydrophobic copper foam supported phase change composites with high thermal conductivity for energy storage
	Liang, Weidong; Zhu, Hongyu; Wang, Ran; Wang, Chengjun; Zhu, Zhaoqi; Sun, Hanxue; Li, An
刊名	Materials Research
	2018
卷号	21 期号:3
关键词	Ammonium persulfate Copper Differential scanning calorimetry Foams Heat storage Hydrophobicity Melting Microchannels Phase change materials Polydimethylsiloxane Silicones Storage (materials) Thermodynamic stability Copper foam Differential scanning calorimeters Form stable phase change material High temperature High thermal conductivity Low surface energy Polydimethylsiloxane PDMS Superhydrophobic
ISSN号	15161439
DOI	10.1590/1980-5373-MR-2017-0813
英文摘要	Superhydrophobic and superoleophilic oxidized copper foam (OCF) was prepared by oxidation of copper foam using (NH4)2S2O8 to generate rough surface then followed by modification with low surface energy substance polydimethylsiloxane (PDMS) and stearic acid (SA). Based on sperwetting, form-stable phase change materials (PCMs) composites were obtained by facile absorbing of organic PCMs into PDMS-OCF network. In this way, the organic PCMs can be spontaneously adsorbed and remain stable without leakage even at high temperature over their melting points, and the thermal storage capacity of the as-synthesized PCMs composites were analyzed using a differential scanning calorimeter (DSC). The latent heats of the PDMS-OCF/PCMs composites were measured to be 36.87 J g-1 and 36.81 J g-1 for PDMS-OCF/paraffin and PDMS-OCF/SA, respectively, which is greater than that of untreated copper form (CF)/paraffin composite (8.50 J g-1). The PDMS-OCF/PCMs composite shows better thermal stability and the loaded organic PCM has been reduced by 0.64% after 100 times of melting-cooling recycling for PDMS-OCF/paraffin. The thermal conductivity of PDMS-OCF/paraffin composite is about 9 times that of pure paraffin. Such excellent thermal conductivity as well as good thermal stability of the PDMS-OCF/PCMs makes it promising candidate for thermal energy storage. © 2018 Universidade Federal de Sao Carlos. All rights reserved.
WOS研究方向	Materials Science
语种	英语
出版者	Universidade Federal de Sao Carlos
WOS记录号	WOS:000432387700023
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114163]
专题	石油化工学院发展规划处
作者单位	College of Petrochemical Technology, Lanzhou University of Technology, Gansu; 730050, China
推荐引用方式 GB/T 7714	Liang, Weidong,Zhu, Hongyu,Wang, Ran,et al. Superhydrophobic copper foam supported phase change composites with high thermal conductivity for energy storage[J]. Materials Research,2018,21(3).
APA	Liang, Weidong.,Zhu, Hongyu.,Wang, Ran.,Wang, Chengjun.,Zhu, Zhaoqi.,...&Li, An.(2018).Superhydrophobic copper foam supported phase change composites with high thermal conductivity for energy storage.Materials Research,21(3).
MLA	Liang, Weidong,et al."Superhydrophobic copper foam supported phase change composites with high thermal conductivity for energy storage".Materials Research 21.3(2018).