Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Metal-organic framework-derived graphene porous carbon matrix based lithium hydroxide chemical heat storage composite materials for residential heating | |
| Yang, Xiangyu1,3; Li, Shijie2; Zhao, Jianguo1,2; Wang, Xiaomin1; Huang, Hongyu3; Wang, Yongzhen1 | |
| 2022 | |
| Source Publication | ENERGY AND BUILDINGS
 |
| ISSN | 0378-7788 |
| Volume | 254Pages:9 |
| Corresponding Author | Zhao, Jianguo(zhaojianguo@sxdtdx.edu.cn) ; Huang, Hongyu(huanghy@ms.giec.ac.cn) |
| Abstract | As a promising candidate for converting renewables into chemical energy, lithium hydroxide based chemical heat storage (CHS) materials have gained great investigate enthusiasm by virtue of their outstanding storage capacity and long storage lifespan. But salt hydrates still cannot get rid of the inherent shortcomings of poor thermal conductivity, sintering, low hydration rate, and serious heat storage density degradation, Hence, it is highly desirable to create a salt hydrate CHS material that can achieve improved thermal conductivity, heat storage capacity and water storage content while maintaining good cycle stability for efficient utilization of low grade heat and residential heating. Here, we develop a lithium hydroxide composite CHS material with zeolitic imidazolate framework produced graphene-based (ZIF-8/GO) porous carbon templates as the host porous carbon matrix (ZHPCM). This Li/ZHPCM composite has huge storage strength (Max. 1483.8 kJ kg(-1)), low reaction activation energy and high hydration capacity attribute to the adequate specific surface area and massively porous of ZHPCM, which not only boosts the spreading of lithium hydroxide, but also assuages the sintering of lithium hydroxide, thus increasing the conversion rate of LiOH to LiOH center dot H2O, and ultimately lead to an improvement in the storage strength. Moreover, compared to lithium hydroxide, this Li/ZHPCM composite shows remarkable cycle property for 15 times of hydration conversion without conspicuous weakened and good thermal conductivity. Besides, the calculated energy barrier that Li/ZHPCM(800)-50 (35.7 kJ mol(-1)) needs to overcome is also significantly lower than that of lithium hydroxide (50.7 kJ mol(-1)), which not only implies that the resistance to the reaction of Li/ZHPCM(800)-50 is smaller, but also further proves the important role of ZHPCM(800) in improving the performance of lithium hydroxide. This novel LiOH composite CHS material may paves a new way for residential heating and the further application of ZHPCM in the future. (C) 2021 Elsevier B.V. All rights reserved. |
| Keyword | LiOH CHS materials Host porous carbon matrix Large heat storage capacity Cycle performance Thermal conductivity |
| DOI | 10.1016/j.enbuild.2021.111616 |
| WOS Keyword | THERMAL-ENERGY STORAGE ; HIGHLY EFFICIENT ; SORBENTS ; DENSITY ; DESIGN |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Research and development projects in key areas of Guangdong Province[2020B0202010004] ; National Natural Science Foundation of China[52071192] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC038] |
| WOS Research Area | Construction & Building Technology ; Energy & Fuels ; Engineering |
| Funding Organization | Research and development projects in key areas of Guangdong Province ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS |
| WOS Subject | Construction & Building Technology ; Energy & Fuels ; Engineering, Civil |
| WOS ID | WOS:000719315500006 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/35325 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Zhao, Jianguo; Huang, Hongyu |
| Affiliation | 1.Taiyuan Univ Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China 2.Shanxi Datong Univ, Inst Carbon Mat Sci, Datong 037009, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Yang, Xiangyu,Li, Shijie,Zhao, Jianguo,et al. Metal-organic framework-derived graphene porous carbon matrix based lithium hydroxide chemical heat storage composite materials for residential heating[J]. ENERGY AND BUILDINGS,2022,254:9. |
| APA | Yang, Xiangyu,Li, Shijie,Zhao, Jianguo,Wang, Xiaomin,Huang, Hongyu,&Wang, Yongzhen.(2022).Metal-organic framework-derived graphene porous carbon matrix based lithium hydroxide chemical heat storage composite materials for residential heating.ENERGY AND BUILDINGS,254,9. |
| MLA | Yang, Xiangyu,et al."Metal-organic framework-derived graphene porous carbon matrix based lithium hydroxide chemical heat storage composite materials for residential heating".ENERGY AND BUILDINGS 254(2022):9. |
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