Highly efficient solar photothermal conversion of graphene-coated conjugated microporous polymers hollow spheres

doi:10.1016/j.jcis.2022.05.115

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	Highly efficient solar photothermal conversion of graphene-coated conjugated microporous polymers hollow spheres
	Ma, Yingjiao 1,2; Hu, Zhentao 1,2; Lu, Nan 1,2; Niu, Ye 1,2; Deng, Xiaofeng 1,2; Li, Jiyan 1,2; Zhu, Zhaoqi 1,2; Sun, Hanxue 1,2; Liang, Weidong 1,2; Li, An 1,2
刊名	Journal of Colloid and Interface Science
	2022-10-01
卷号	623 页码:856-869
关键词	Conjugated polymers Light Light absorption Microporosity Microporous materials Phase change materials Solar energy Spheres Conjugated microporous polymers Functional layer High-specific surfaces Hollow sphere Low thermal conductivity Octadecanol Photothermal conversion Polymer hollow sphere Synthesised Visible light
ISSN号	0021-9797
DOI	10.1016/j.jcis.2022.05.115
英文摘要	Highly efficient harvesting, transfer, and storage of solar energy are of great significance for the sustainability of society Herein, we report the design and synthesis of conjugated microporous polymers hollow spheres (CMPs-HS) coated by graphene (GCMPs-HS) and compounded with the phase change material (PCM) octadecanol (GCMPs@ODA) for efficient solar photothermal conversion. The as-synthesized CMPs-HS shows a high specific surface (519.95 m2 g−1 and 309.26 m2 g−1), good thermostability, and lower thermal conductivity (0.33 W m-2h−1). By coating graphene, the light absorption remained about 90% in the visible light range, which allows light harvest for photothermal conversion. Taking the GCMPs-HS as a functional layer for the solar steam generation (SSG) system, a high evaporation efficiency of near 90% is obtained. After inhaling octadecanol, GCMPs@ODA are prepared and their latent heats are measured to about 217.4 J g−1 and 224.6 J g−1. Under 1 sun irradiation, the photothermal conversion efficiencies of GCMPs@ODA are measured to be 87.15% and 85.83%, the above merits applied in different conditions are superior to photothermal conversion materials reported in the literature. Thus, among the above merits, the fabricated materials are the competitive candidate which shows the great potential in the efficient application of solar energy. © 2022 Elsevier Inc.
WOS研究方向	Chemistry
语种	英语
出版者	Academic Press Inc.
WOS记录号	WOS:000807307400001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158430]
专题	石油化工学院
作者单位	1.Department of Chemical Engineering, College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou; 730050, China; 2.Gansu De'an Building Materials Co., Ltd, Lanzhou, China
推荐引用方式 GB/T 7714	Ma, Yingjiao,Hu, Zhentao,Lu, Nan,et al. Highly efficient solar photothermal conversion of graphene-coated conjugated microporous polymers hollow spheres[J]. Journal of Colloid and Interface Science,2022,623:856-869.
APA	Ma, Yingjiao.,Hu, Zhentao.,Lu, Nan.,Niu, Ye.,Deng, Xiaofeng.,...&Li, An.(2022).Highly efficient solar photothermal conversion of graphene-coated conjugated microporous polymers hollow spheres.Journal of Colloid and Interface Science,623,856-869.
MLA	Ma, Yingjiao,et al."Highly efficient solar photothermal conversion of graphene-coated conjugated microporous polymers hollow spheres".Journal of Colloid and Interface Science 623(2022):856-869.