Enhanced performance and interfacial investigation of mineral-based composite phase change materials for thermal energy storage.
作者： Chuanchang Li , Liangjie Fu , Jing Ouyang , Huaming Yang
DOI: 10.1038/SREP01908
关键词: Stearic acid 、 Graphite 、 Thermal conductivity 、 Chemical engineering 、 Bentonite 、 Materials science 、 Thermal energy storage 、 Crystallinity 、 Composite number 、 Nanocomposite
摘要: A novel mineral-based composite phase change materials (PCMs) was prepared via vacuum impregnation method assisted with microwave-acid treatment of the graphite (G) and bentonite (B) mixture. Graphite treated mixture (GBm) had more loading capacity higher crystallinity stearic acid (SA) in SA/GBm composite. The showed an enhanced thermal storage capacity, latent heats for melting freezing (84.64 84.14 J/g) than those SA/B sample (48.43 47.13 J/g, respectively). Addition beneficial to enhancement conductivity composite, which could reach 0.77 W/m K, 31% 196% pure SA. Furthermore, atomic-level interfaces between SA support surfaces were depicted, mechanism properties detail investigated.
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