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- Title
Spatiotemporal Utilization of Latent Heat in Erythritol‐based Phase Change Materials as Solar Thermal Fuels.
- Authors
Chen, Jie; Kou, Yan; Zhang, Shihui; Zhang, Xinyu; Liu, Hanqing; Yan, Huiming; Shi, Quan
- Abstract
Solar thermal fuels (STFs) have been particularly concerned as sustainable future energy due to their impressive ability to store solar energy in chemical bonds and controllably release thermal energy. However, currently studied STFs mainly focus on molecule‐based materials with high photochemical activity, toxicity, and compromised features, which greatly restricts their applications in practical scenarios of solar energy utilization. Herein, we present a novel erythritol‐based composite phase change material (PCM) as a new type of STFs with an outstanding capability to store solar energy as latent heat in its stable supercooling state and release thermal energy as needed. This composite PCM with stored thermal energy can be maintained stably at room temperature and subsequently release latent heat as high as 224.9 J/g during the crystallization process triggered by thermal stimuli. Remarkably, solar energy can be converted into latent heat stored in the composite PCM over months. Through mechanical stimulations, the released latent heat can increase the temperature of the composite up to 91 °C. This work presents a new concept of using spatiotemporal storage and release of latent heat in PCMs for solar energy utilization, making it a potential candidate as STFs for developing future clean energy techniques.
- Subjects
LATENT heat; PHASE change materials; ENERGY consumption; SUSTAINABILITY; PARAFFIN wax; SOLAR energy; HEAT storage; ENERGY futures; CLEAN energy
- Publication
Angewandte Chemie, 2024, Vol 136, Issue 16, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202400759