Molecularly elongated phase change materials for mid-temperature solar-thermal energy storage and electric conversion

Waseem,Aftab1,2; Jinming,Shi1; Mulin,Qin1; Zibin,Liang1; Feng,Xiong1; Ali,Usman1; Songbai,Han2; Ruqiang,Zou1,3

2022-11

10.1016/j.ensm.2022.08.002

Energy Storage Materials   影响因子和分区

2405-8297

2405-8289

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.

Molecular elongation Phase change materials Intermediate temperature Thermal energy storage Power generation

SCI ; EI

英语

其他

National Key Research and Development Program of China[2020YFA0210701] ; National Natural Science Foundation of China[51825201]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000844698900001

Elsevier BV

20223412594397

Heat storage ; Passive solar ; Phase change materials ; Scaffolds ; Solar heating ; Solar power generation ; Solar thermal energy ; Storage (materials) ; Thermoelectric equipment

Construction Equipment:405.1 ; Solar Power:615.2 ; Thermoelectric Energy:615.4 ; Solar Energy and Phenomena:657.1 ; Storage:694.4

人工提交

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

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.