Molecularly elongated phase change materials for mid-temperature solar-thermal energy storage and electric conversion
|Joint first author||Waseem,Aftab; Jinming,Shi|
The utilization of phase change materials (PCMs) offers state-of-the-art thermal energy storage (TES) developments to overcome the intermittency issues associated with renewable energy sources. Despite the tremendous potential of renewable energy storage at intermediate temperature (100-200 C), the PCM options for this temperature range are limited, and most available PCM candidates are inadequate for practical applications. Herein, we present a molecular elongation design strategy to develop a series of intermediate -temperature PCMs from naturally occurring fatty materials. By increasing chain length and imparting functional moieties in the molecular backbone, we fine-tune the intermolecular interactions in resulting PCMs to achieve more than two folds higher transition temperature compared with their monomeric analogs. Through a systematic structural analysis, we also probe the fundamental basis at the molecular level for the high TES capacity (up to 228 J g(-1)) that lies behind the excellent performance of our developed PCMs. Further, by compositing developed PCMs with photo-absorber scaffold, intermediate-temperature solar-thermal energy storage is demonstrated for dispatchable power generation. The prototype experimental results speculate that PCM integrated solar-thermoelectric generators could be an intriguing alternative to battery-coupled photo-voltaic systems.
National Key Research and Development Program of China[2020YFA0210701] ; National Natural Science Foundation of China
|WOS Research Area|
Chemistry ; Science & Technology - Other Topics ; Materials Science
Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
|WOS Accession No|
|EI Accession Number|
Heat storage ; Passive solar ; Phase change materials ; Scaffolds ; Solar heating ; Solar power generation ; Solar thermal energy ; Storage (materials) ; Thermoelectric equipment
|ESI Classification Code|
Construction Equipment:405.1 ; Solar Power:615.2 ; Thermoelectric Energy:615.4 ; Solar Energy and Phenomena:657.1 ; Storage:694.4
Cited Times [WOS]:6
|Document Type||Journal Article|
|Department||Academy for Advanced Interdisciplinary Studies|
1.Beijing Key Laboratory of Theory and Technology of Advanced Battery Material, School of Materials Science and Engineering, Peking University, Beijing 100871, China
2.Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
3.Institute of Clean Energy, Peking University, Beijing 100871, China
|First Author Affilication||Academy for Advanced Interdisciplinary Studies|
Waseem,Aftab,Jinming,Shi,Mulin,Qin,et al. Molecularly elongated phase change materials for mid-temperature solar-thermal energy storage and electric conversion[J]. Energy Storage Materials,2022,52:284-290.
Waseem,Aftab.,Jinming,Shi.,Mulin,Qin.,Zibin,Liang.,Feng,Xiong.,...&Ruqiang,Zou.(2022).Molecularly elongated phase change materials for mid-temperature solar-thermal energy storage and electric conversion.Energy Storage Materials,52,284-290.
Waseem,Aftab,et al."Molecularly elongated phase change materials for mid-temperature solar-thermal energy storage and electric conversion".Energy Storage Materials 52(2022):284-290.
|Files in This Item:|
|Recommend this item|
|Export to Endnote|
|Export to Excel|
|Export to Csv|
|Similar articles in Google Scholar|
|Similar articles in Baidu Scholar|
|Similar articles in Bing Scholar|
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.