Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy

doi:10.1021/acsaem.1c02835

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

	Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy
	Liu, Huan; Qian, Zhiqiang; Liao, Geqi; Wang, Xiaodong
刊名	ACS APPLIED ENERGY MATERIALS
	2021-10
卷号	4 期号:11 页码:13248-13262
ISSN号	2574-0962
DOI	10.1021/acsaem.1c02835
英文摘要	Solar photothermal energy storage using phase -change material (PCMs) provides sustainable penetration in comprehensive utilization. However, PCMs are obliged to suffer from low conversion and storage effectiveness in solar photo -thermal energy due to a low optical absorption capacity. In this study, we developed a type of magnetic phase-change microcapsule system with superior photothermal energy conversion efficiency. The microcapsule system was constructed with n-docosane as a PCM core and a CaCO3/Fe3O4 composite shell surface-decorated with black phosphorus (BP) nanosheets employing a Pickering emulsion-templated precipitation technique. The presence of BP nanosheets on the capsule surface not only enhanced the emulsion stability to facilitate the fabrication of a tight CaCO3-based shell, resulting in a high latent heat capacity of the microcapsules, but also improved thermal conduction of the microcapsule system, promoting a fast thermal response and heat transfer. The microcapsule system shows a high phase-change enthalpy of over 120 J/g and a significant increase in thermal conductivity by over 400% compared to pure PCM. More importantly, the microcapsule system exhibits a high photothermal conversion efficiency of 95.08%, which is superior to most of the PCM-based composite materials reported in the literature. There is only 0.02% conversion efficiency lost after the 10-cycle photothermal conversion experiment for the microcapsule system, indicating a good working stability for the long-term use of solar photothermal conversion and storage. By decorating magnetic phase-change microcapsules with BP nanosheets on the shell, this study offers a new strategy for development of PCM-based composite materials for efficient harvest and utilization of solar
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34577]
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,Qian, Zhiqiang,Liao, Geqi,et al. Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy[J]. ACS APPLIED ENERGY MATERIALS,2021,4(11):13248-13262.
APA	Liu, Huan,Qian, Zhiqiang,Liao, Geqi,&Wang, Xiaodong.(2021).Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy.ACS APPLIED ENERGY MATERIALS,4(11),13248-13262.
MLA	Liu, Huan,et al."Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy".ACS APPLIED ENERGY MATERIALS 4.11(2021):13248-13262.