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Performance investigation of LiCl & BULL;H2O-& gamma;-Al2O3 composite materials for low-grade heat storage

文献类型：期刊论文

作者Li, Lin1,3; Zeng, Tao1,2; Huang, Hongyu1; Li, Jun1; Kobayshi, Noriyuki4; Yang, Xiaohu2
刊名RSC ADVANCES
出版日期2023-08-21
卷号13期号:36页码:24944-24954
DOI10.1039/d3ra03835a
通讯作者Zeng, Tao() ; Yang, Xiaohu()
英文摘要In this study, the influences of nano & gamma;-Al2O3 on the thermal storage performance of LiCl were experimentally investigated. The XRD results show that a complex of lithium aluminium oxychloride (LiAlOCl2) was formed through the LiCl & BULL;H2O and & gamma;-Al2O3 composites preparation process. The in situ diffuse reflectance infrared Fourier transform spectroscopy measurement reveals that the addition of & gamma;-Al2O3 accelerated the hydration rate of LiCl composites, concentrated the spectrum utilization range, and promoted the desorption rate of physical adsorbed H2O and low-frequency structural -OH in the materials. The highest specific surface area of the composite is 34.5 times higher than that of pure LiCl. The addition of & gamma;-Al2O3 can increase the conversion rate of LiCl & BULL;H2O to approximately 100% at the hydration time of 1 h and the addition content of & gamma;-Al2O3 at 15 wt%. A maximum heat storage density (HSD) for the LiCl & BULL;H2O-& gamma;-Al2O3 composite can reach 714.7 kJ kgLiCl & BULL;H2O-1 in 1 h when the addition content of & gamma;-Al2O3 was 15%wt and its water uptake can reach 0.26 g g-1 in 1 h. It also can be found that the addition of Al2O3 in LiCl resulted in a decrease of the activation energy from 90.89 kJ mol-1 to 79.76 kJ mol-1. However, the thermal conductivity of the LiCl & BULL;H2O-& gamma;-Al2O3 composite slightly decreased with the increase of nano & gamma;-Al2O3 content.
WOS关键词THERMOCHEMICAL ENERGY-STORAGE ; SORPTION ; TEMPERATURE ; MICROSTRUCTURE ; ENHANCEMENT ; ADSORPTION ; SORBENTS ; SURFACE ; PORES ; VAPOR
资助项目National Natural Science Foundation of China[52176091] ; National Natural Science Foundation of China[52006158] ; Open Fund of Science and Technology on Thermal Energy and Power Laboratory[TPL2020A02] ; Juan Fu from GuangZhou Institute of Energy Conversion
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001052144000001
出版者ROYAL SOC CHEMISTRY
资助机构National Natural Science Foundation of China ; Open Fund of Science and Technology on Thermal Energy and Power Laboratory ; Juan Fu from GuangZhou Institute of Energy Conversion
源URL[http://ir.giec.ac.cn/handle/344007/39668]  
专题中国科学院广州能源研究所
通讯作者Zeng, Tao; Yang, Xiaohu
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Wuhan Second Ship Design & Res Inst, Sci & Technol Thermal Energy & Power Lab, Wuhan 430205, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Nagoya Univ, Dept Chem Syst Engn, Nagoya 4648603, Japan
推荐引用方式
GB/T 7714		 Li, Lin,Zeng, Tao,Huang, Hongyu,et al. Performance investigation of LiCl & BULL;H2O-& gamma;-Al2O3 composite materials for low-grade heat storage[J]. RSC ADVANCES,2023,13(36):24944-24954.
APA Li, Lin,Zeng, Tao,Huang, Hongyu,Li, Jun,Kobayshi, Noriyuki,&Yang, Xiaohu.(2023).Performance investigation of LiCl & BULL;H2O-& gamma;-Al2O3 composite materials for low-grade heat storage.RSC ADVANCES,13(36),24944-24954.
MLA Li, Lin,et al."Performance investigation of LiCl & BULL;H2O-& gamma;-Al2O3 composite materials for low-grade heat storage".RSC ADVANCES 13.36(2023):24944-24954.

入库方式： OAI收割

来源：广州能源研究所

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