Fabrication and thermal properties of tetradecanol/graphene aerogel form-stable composite phase change materials
| Autor: | Boyuan Mu, Min Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Phase transition
Multidisciplinary Fabrication Materials science Graphene 020209 energy Composite number lcsh:R lcsh:Medicine Aerogel 02 engineering and technology law.invention Thermal conductivity law Thermal 0202 electrical engineering electronic engineering information engineering Thermal stability lcsh:Q Composite material lcsh:Science |
| Zdroj: | Scientific Reports, Vol 8, Iss 1, Pp 1-14 (2018) |
| ISSN: | 2045-2322 |
| Popis: | In this study, tetradecanol/graphene aerogel form-stable composite phase change materials were prepared by physical absorption. Two kinds of graphene aerogels were prepared using vitamin C and ethylenediamine to enhance the thermal conductivity of tetradecanol and prevent its leakage during phase transition. The form-stable composite phase change material exhibited excellent thermal energy storage capacity. The latent heat of the tetradecanol/graphene aerogel composite phase change materials with 5 wt.% graphene aerogel was similar to the theoretical latent heat of pure tetradecanol. The thermal conductivity of the tetradecanol/graphene aerogel composite phase change material improved gradually as the graphene aerogel content increased. The prepared tetradecanol/graphene aerogel composite phase change materials exhibited good thermal reliability and thermal stability, and no chemical reaction occurred between tetradecanol and the graphene aerogel. In addition, the latent heat and thermal conductivity of the tetradecanol/ethylenediamine-graphene aerogel composites were higher than those of tetradecanol/vitamin C-graphene aerogel composites, and the flexible shape of the ethylenediamine-graphene aerogel is suitable for application of the tetradecanol/ethylenediamine-graphene aerogel composite. |
| Databáze: | OpenAIRE |
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