Abstract
Major advancements are needed in the thermochemical energy storage (TCES) field to bring the technology to commercial levels. The current research strategies are focused on improving heat and mass transfer using different supporting materials to achieve mechanical integrity during storage. However, these strategies are still under development, and they have not overcome the lab scale yet. This work explores novel matrices to expand the material database for TCES composites. Pure structural matrices (cellulose) and novel matrices with storage potential (polymeric solid–solid phase change materials) are selected and combined with three well‐known thermochemical materials (TCMs) (MgSO4·6H2O, SrBr2·6H2O and MgCl2·6H2O), providing evidence of hybridized composites with storage capacity up to 2.4 GJ m−3 with a 25–20 wt% of polymeric matrix. The polymer content is found to act as a nucleating agent in the magnesium sulfate crystallization process forming a synthetic monohydrate crystalline phase (Kieserite) and inhibiting the formation of the amorphous phase. The effect of the matrix is proved to induce certain structural deformation or changes not observed in the pure TCM sorption process. This phenomenon has the potential to benefit the stabilization of the TCM, e.g., inhibition of the formation of amorphous phase in magnesium sulfate composites.
Original language | English |
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Article number | 2200184 |
Number of pages | 19 |
Journal | Advanced Sustainable Systems |
Volume | 7 |
Issue number | 7 |
Early online date | 13 May 2023 |
DOIs | |
Publication status | Published - 19 Jul 2023 |
Bibliographical note
Publisher Copyright:© 2023 The Authors. Advanced Sustainable Systems published by Wiley-VCH GmbH.
Keywords
- hybrids
- manufacturing
- matrix
- PCM
- TCM
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- General Environmental Science